/* ==========================================================================
   QUARTA PARETE — Foglio di stile
   Hub Tecnico di architettura
   ========================================================================== */

/* ==========================================================================
   1. DESIGN TOKENS (variabili CSS)
   Centralizzano colori, font, spazi: cambiando qui cambia tutto il sito.
   ========================================================================== */
:root {
    /* Palette: navy + ambra + avorio */
    --color-bg: #f7f5f0;
    --color-bg-alt: #ffffff;
    --color-ink: #0d1b2a;
    --color-ink-soft: #2d3a4a;
    --color-ink-mute: #5a6675;
    --color-line: #e4e1d8;
    --color-line-strong: #c4bfb1;
    --color-dark: #0d1b2a;
    --color-dark-alt: #142536;
    --color-accent: #e8b54a;
    --color-accent-dark: #c79733;
    --color-accent-soft: #f9ecc7;
    --color-paper: #ffffff;
    --color-on-dark: #f7f5f0;
    --color-on-dark-soft: rgba(247, 245, 240, 0.75);
    --color-on-dark-mute: rgba(247, 245, 240, 0.55);

    /* Tipografia */
    --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
    --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* Spaziatura (scala modulare) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 3rem;
    --space-8: 4rem;
    --space-9: 6rem;
    --space-10: 8rem;

    /* Container */
    --container-max: 1280px;
    --container-pad: clamp(1.25rem, 4vw, 3rem);

    /* Bordi & ombre */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(20, 20, 20, 0.04);
    --shadow-md: 0 8px 30px rgba(20, 20, 20, 0.08);
    --shadow-lg: 0 20px 60px rgba(20, 20, 20, 0.12);

    /* Animazioni */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 200ms var(--ease-out);
    --transition-base: 400ms var(--ease-out);
    --transition-slow: 700ms var(--ease-out);
}

/* ==========================================================================
   2. RESET & BASE
   ========================================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: 17px;
    line-height: 1.7;
    color: var(--color-ink);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img,
picture,
svg {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

button {
    font: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

ul,
ol {
    list-style: none;
}

/* ==========================================================================
   3. UTILITIES
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-pad);
}

.section {
    padding-block: clamp(4rem, 10vw, 8rem);
    position: relative;
}

.section-header {
    max-width: 800px;
    margin-bottom: var(--space-8);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: var(--space-4);
}

.eyebrow::before {
    content: "";
    width: 24px;
    height: 1px;
    background: currentColor;
    display: inline-block;
}

.section-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2rem, 5vw, 3.75rem);
    line-height: 1.12;
    letter-spacing: -0.02em;
    color: var(--color-ink);
}

.section-title em {
    font-style: normal;
    font-weight: 600;
    color: var(--color-accent);
}

.section-subtitle {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    line-height: 1.2;
    color: var(--color-ink);
}

.section-sub {
    margin-top: var(--space-5);
    font-size: 1.125rem;
    color: var(--color-ink-soft);
    max-width: 60ch;
}

.lead {
    font-family: var(--font-display);
    font-style: normal;
    font-weight: 500;
    font-size: clamp(1.25rem, 2vw, 1.625rem);
    line-height: 1.45;
    color: var(--color-ink);
}

/* ==========================================================================
   4. ANIMAZIONI ALLO SCROLL
   Gli elementi con .reveal partono trasparenti e scorrono in vista.
   ========================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 800ms var(--ease-out), transform 800ms var(--ease-out);
    will-change: opacity, transform;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    * {
        animation-duration: 0s !important;
        transition-duration: 0s !important;
    }
}

/* ==========================================================================
   5. BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.95rem 1.75rem;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 1px solid transparent;
    text-align: center;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-ink);
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: inherit;
    border-color: currentColor;
    opacity: 0.85;
}

.btn-secondary:hover {
    background: var(--color-accent);
    color: var(--color-ink);
    border-color: var(--color-accent);
    opacity: 1;
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   6. HEADER
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding-block: var(--space-4);
    background: rgba(13, 27, 42, 0);
    color: var(--color-on-dark);
    transition: background var(--transition-base), backdrop-filter var(--transition-base),
                box-shadow var(--transition-base), padding var(--transition-base), color var(--transition-base);
}

.site-header.is-scrolled {
    background: rgba(13, 27, 42, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    padding-block: var(--space-3);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
}

.logo {
    display: inline-flex;
    align-items: baseline;
    gap: var(--space-2);
    font-weight: 600;
    font-size: 1.125rem;
    letter-spacing: -0.01em;
    color: inherit;
}

.logo-mark {
    display: inline-block;
    color: var(--color-accent);
    font-weight: 700;
    transform: scaleY(1.4);
    transform-origin: center;
}

.logo-text {
    font-family: var(--font-display);
    font-weight: 600;
}

.main-nav ul {
    display: flex;
    gap: var(--space-6);
    align-items: center;
}

.main-nav a {
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--color-on-dark-soft);
    position: relative;
    padding-block: var(--space-2);
}

.main-nav a:hover {
    color: var(--color-on-dark);
}

.main-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.main-nav a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 0.5rem 1.25rem !important;
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-sm);
    color: var(--color-accent) !important;
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    background: var(--color-accent);
    color: var(--color-ink) !important;
}

/* Menu mobile */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
    z-index: 110;
}

.menu-toggle span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--color-on-dark);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   7. HERO
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 120px;
    padding-bottom: var(--space-9);
    overflow: hidden;
    background:
        linear-gradient(135deg, rgba(232, 181, 74, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(232, 181, 74, 0.05) 1px, transparent 1px),
        linear-gradient(0deg, rgba(232, 181, 74, 0.05) 1px, transparent 1px),
        var(--color-dark);
    background-size: 120px 120px, 32px 32px, 32px 32px, auto;
    color: var(--color-on-dark);
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: linear-gradient(180deg, var(--color-dark) 0%, var(--color-dark-alt) 100%);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(to right, rgba(232, 181, 74, 0.08) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(232, 181, 74, 0.08) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2.5rem, 8vw, 5.5rem);
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: var(--color-on-dark);
    margin-bottom: var(--space-5);
}

.hero-title em {
    font-style: normal;
    color: var(--color-accent);
    font-weight: 600;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    line-height: 1.6;
    color: var(--color-on-dark-soft);
    max-width: 600px;
    margin-bottom: var(--space-7);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-9);
}

.hero .btn-secondary {
    color: var(--color-on-dark);
    border-color: rgba(247, 245, 240, 0.4);
}

.hero .btn-secondary:hover {
    background: var(--color-accent);
    color: var(--color-ink);
    border-color: var(--color-accent);
}

.hero-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-5);
    padding-top: var(--space-6);
    border-top: 1px solid rgba(232, 181, 74, 0.25);
    max-width: 700px;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.meta-number {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 600;
    color: var(--color-accent);
    line-height: 1;
}

.meta-label {
    font-size: 0.9rem;
    color: var(--color-on-dark-mute);
    letter-spacing: 0.02em;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-6);
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 50px;
    border: 1px solid rgba(232, 181, 74, 0.4);
    border-radius: 25px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-indicator span {
    display: block;
    width: 4px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 2px;
    animation: scrollHint 2s ease-in-out infinite;
}

@keyframes scrollHint {
    0% { transform: translateY(0); opacity: 0; }
    30% { opacity: 1; }
    60% { transform: translateY(16px); opacity: 0; }
    100% { transform: translateY(16px); opacity: 0; }
}

/* ==========================================================================
   8. ABOUT
   ========================================================================== */
.about {
    background: var(--color-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-10);
}

.about-text p + p {
    margin-top: var(--space-4);
    color: var(--color-ink-soft);
    font-size: 1.05rem;
}

.about-quote {
    display: flex;
    align-items: center;
    padding: var(--space-7);
    background: var(--color-bg-alt);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-md);
}

.about-quote blockquote p {
    font-family: var(--font-display);
    font-style: normal;
    font-weight: 500;
    font-size: clamp(1.25rem, 2vw, 1.625rem);
    line-height: 1.35;
    color: var(--color-ink);
}

.about-quote blockquote p em {
    font-style: italic;
    font-weight: 600;
    color: var(--color-accent);
}

/* Team */
.team {
    margin-top: var(--space-9);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-line);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-5);
    margin-top: var(--space-6);
}

.team-card {
    text-align: center;
    padding: var(--space-5);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-line);
    transition: all var(--transition-base);
}

.team-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
}

.team-photo {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent-soft) 0%, var(--color-bg-alt) 100%);
    margin: 0 auto var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-paper);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base);
}

.team-card:hover .team-photo {
    transform: scale(1.05);
}

.team-initials {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.05em;
}

.team-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: var(--space-1);
}

.team-role {
    font-size: 0.9rem;
    color: var(--color-ink-mute);
    letter-spacing: 0.02em;
}

/* ==========================================================================
   9. LABORATORIO (BLOG)
   ========================================================================== */
.lab {
    background: var(--color-bg);
}

.lab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-5);
}

.lab-card {
    background: var(--color-paper);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-line);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.lab-card:hover,
.lab-card:focus-visible {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
    outline: none;
}

.lab-card:focus-visible {
    box-shadow: var(--shadow-lg), 0 0 0 3px rgba(232, 181, 74, 0.35);
}

.lab-card-image {
    aspect-ratio: 16 / 10;
    background: var(--color-bg-alt);
    position: relative;
    overflow: hidden;
}

.lab-card-cover {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.lab-card-cover.is-loaded {
    opacity: 1;
}

.lab-card-pattern {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.pattern-1 {
    background:
        repeating-linear-gradient(45deg, rgba(232, 181, 74, 0.5) 0px, rgba(232, 181, 74, 0.5) 2px, transparent 2px, transparent 12px),
        linear-gradient(135deg, var(--color-dark-alt) 0%, var(--color-dark) 100%);
}

.pattern-2 {
    background:
        radial-gradient(circle at 20% 30%, rgba(232, 181, 74, 0.25) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(13, 27, 42, 0.6) 0%, transparent 40%),
        var(--color-dark);
}

.pattern-3 {
    background:
        linear-gradient(0deg, rgba(232, 181, 74, 0.15) 1px, transparent 1px) 0 0 / 20px 20px,
        linear-gradient(90deg, rgba(232, 181, 74, 0.15) 1px, transparent 1px) 0 0 / 20px 20px,
        var(--color-dark-alt);
}

.lab-card-body {
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    flex-grow: 1;
}

.lab-tag {
    align-self: flex-start;
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    padding: var(--space-1) var(--space-3);
    background: var(--color-accent-soft);
    color: var(--color-accent-dark);
    border-radius: 100px;
}

.lab-card h3 {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 1.375rem;
    line-height: 1.25;
    color: var(--color-ink);
}

.lab-card p {
    color: var(--color-ink-soft);
    font-size: 1rem;
    flex-grow: 1;
}

.link-arrow {
    color: var(--color-accent);
    font-weight: 500;
    font-size: 0.9rem;
    margin-top: auto;
    align-self: flex-start;
    transition: gap var(--transition-fast);
}

.link-arrow:hover {
    color: var(--color-accent-dark);
}

.lab-article-link {
    position: relative;
    z-index: 2;
}

.lab-article-link[aria-disabled="true"] {
    cursor: not-allowed;
    opacity: 0.85;
}

/* ==========================================================================
   9b. MODALE LABORATORIO
   ========================================================================== */
.lab-modal {
    position: fixed;
    inset: 0;
    z-index: 250;
    display: none;
    overflow: hidden;
}

.lab-modal.is-open {
    display: grid;
    place-items: center;
}

.lab-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(13, 27, 42, 0.75);
}

.lab-modal-panel {
    position: relative;
    z-index: 1;
    margin: auto;
    width: min(700px, calc(100% - 2rem));
    max-height: none;
    overflow: visible;
    background: var(--color-dark);
    border-radius: var(--radius-md);
    border: 1px solid rgba(232, 181, 74, 0.25);
    box-shadow: var(--shadow-lg);
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
}

.lab-modal-panel::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0.55;
    pointer-events: none;
}

.lab-modal[data-lab-active="render-ai"] .lab-modal-panel::before {
    background: repeating-linear-gradient(
        45deg,
        rgba(232, 181, 74, 0.18) 0 1px,
        transparent 1px 18px
    );
}

.lab-modal[data-lab-active="scia-cila"] .lab-modal-panel::before {
    background:
        linear-gradient(90deg, rgba(232, 181, 74, 0.12) 1px, transparent 1px),
        linear-gradient(0deg, rgba(232, 181, 74, 0.12) 1px, transparent 1px);
    background-size: 34px 34px;
}

.lab-modal[data-lab-active="variazione-catastale"] .lab-modal-panel::before {
    background: repeating-linear-gradient(
        90deg,
        transparent 0 54px,
        rgba(232, 181, 74, 0.16) 54px 55px,
        transparent 55px 72px
    );
}

.lab-modal-close {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    width: 36px;
    height: 36px;
    border: 1px solid var(--color-line);
    border-radius: 50%;
    background: var(--color-paper);
    color: var(--color-ink);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    z-index: 2;
    transition: all var(--transition-fast);
}

.lab-modal-close:hover {
    border-color: var(--color-accent);
    color: var(--color-accent-dark);
}

.lab-modal-content {
    position: relative;
    z-index: 1;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.lab-modal-content h3 {
    font-family: var(--font-display);
    font-size: clamp(1.3rem, 2.6vw, 1.75rem);
    line-height: 1.2;
    color: var(--color-paper);
}

.lab-modal-content p {
    color: var(--color-on-dark-soft);
    font-size: 0.95rem;
    line-height: 1.55;
}

.lab-modal-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding-left: 1.1rem;
}

.lab-modal-highlights li {
    color: var(--color-on-dark-soft);
    font-size: 0.95rem;
    line-height: 1.6;
}

.lab-modal-highlights li::marker {
    color: var(--color-accent-dark);
}

.lab-modal-cta {
    margin-top: var(--space-2);
    align-self: flex-start;
}

.lab-modal-dynamic {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.lab-quiz {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.lab-quiz-definitions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
    width: min(90%, 580px);
    margin: 0 auto var(--space-2);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid rgba(232, 181, 74, 0.28);
}

.lab-quiz-definition {
    padding: var(--space-3);
    background: var(--color-accent-soft);
    border: 1px solid rgba(232, 181, 74, 0.28);
    border-radius: var(--radius-sm);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
}

.lab-quiz-definition h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--color-ink);
    margin-bottom: var(--space-1);
}

.lab-quiz-definition p {
    color: var(--color-ink-soft);
    font-size: 0.84rem;
    line-height: 1.4;
}

.lab-quiz-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2);
}

.lab-quiz-option {
    display: grid;
    grid-template-columns: 22px 1fr;
    align-items: start;
    gap: var(--space-2);
    padding: var(--space-2);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-sm);
    color: var(--color-ink-soft);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lab-quiz-option:hover {
    border-color: rgba(232, 181, 74, 0.65);
    background: var(--color-paper);
}

.lab-quiz-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.lab-quiz-checkbox {
    width: 22px;
    height: 22px;
    border: 1px solid var(--color-line);
    border-radius: 4px;
    background: var(--color-paper);
    position: relative;
    transition: all var(--transition-fast);
}

.lab-quiz-checkbox::after {
    content: "";
    position: absolute;
    left: 7px;
    top: 3px;
    width: 6px;
    height: 11px;
    border: solid var(--color-paper);
    border-width: 0 2px 2px 0;
    opacity: 0;
    transform: rotate(45deg) scale(0.7);
    transition: all var(--transition-fast);
}

.lab-quiz-option input:checked + .lab-quiz-checkbox {
    border-color: var(--color-dark);
    background: var(--color-dark);
}

.lab-quiz-option input:checked + .lab-quiz-checkbox::after {
    opacity: 1;
    transform: rotate(45deg) scale(1);
}

.lab-quiz-option input:focus-visible + .lab-quiz-checkbox {
    box-shadow: 0 0 0 3px rgba(232, 181, 74, 0.35);
}

.lab-quiz-submit {
    width: 100%;
    justify-content: center;
}

.lab-quiz-empty {
    padding: var(--space-3);
    background: var(--color-bg-alt);
    border-left: 5px solid var(--color-accent);
    border-radius: var(--radius-sm);
    color: var(--color-ink-soft);
    font-size: 0.95rem;
    line-height: 1.5;
    animation: labResultFadeIn 220ms ease-out;
}

.lab-quiz-result {
    padding: var(--space-3);
    background: var(--color-bg-alt);
    border-left: 5px solid var(--color-accent);
    border-radius: var(--radius-sm);
    animation: labResultFadeIn 220ms ease-out;
}

.lab-quiz-result.is-scia {
    border-left-color: var(--color-accent);
}

.lab-quiz-result.is-cila {
    border-left-color: var(--color-accent);
}

.lab-quiz-result h4 {
    font-family: var(--font-display);
    color: var(--color-ink);
    font-size: 1.15rem;
    margin-bottom: var(--space-2);
}

.lab-quiz-result p {
    color: var(--color-ink-soft);
    font-size: 0.95rem;
    margin-bottom: var(--space-3);
}

@keyframes labResultFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Confronto prima/dopo — Render AI */
.lab-compare {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    --compare-pos: 50%;
}

.lab-compare-stage {
    position: relative;
    aspect-ratio: 16 / 10;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid rgba(232, 181, 74, 0.28);
    background: var(--color-dark-alt);
    cursor: ew-resize;
    user-select: none;
    touch-action: none;
}

.lab-compare-stage.is-dragging {
    cursor: grabbing;
}

.lab-compare-before,
.lab-compare-after {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    pointer-events: none;
}

.lab-compare-after {
    z-index: 1;
    clip-path: inset(0 0 0 var(--compare-pos, 50%));
}

.lab-compare-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    left: var(--compare-pos, 50%);
    z-index: 2;
    width: 44px;
    margin-left: -22px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: ew-resize;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lab-compare-handle:focus-visible {
    outline: none;
}

.lab-compare-handle:focus-visible .lab-compare-handle-grip {
    box-shadow: 0 0 0 3px rgba(232, 181, 74, 0.45);
}

.lab-compare-handle-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 3px;
    margin-left: -1.5px;
    background: var(--color-accent);
    box-shadow: 0 0 12px rgba(0, 0, 0, 0.35);
}

.lab-compare-handle-grip {
    position: relative;
    z-index: 1;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-paper);
    border: 2px solid var(--color-accent);
    box-shadow: var(--shadow-md);
}

.lab-compare-handle-grip::before,
.lab-compare-handle-grip::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 0;
    height: 0;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    transform: translateY(-50%);
}

.lab-compare-handle-grip::before {
    left: 9px;
    border-right: 6px solid var(--color-dark);
}

.lab-compare-handle-grip::after {
    right: 9px;
    border-left: 6px solid var(--color-dark);
}

.lab-compare-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
}

.lab-compare-quote {
    margin-top: var(--space-1);
    color: var(--color-accent) !important;
    font-style: italic;
    font-family: var(--font-display);
    font-size: 1rem !important;
    text-align: center;
    line-height: 1.4 !important;
}

/* Quiz Catasto — flashcard */
.lab-catasto-quiz {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.lab-catasto-definition {
    color: var(--color-on-dark-soft) !important;
    font-size: 0.92rem !important;
    line-height: 1.55 !important;
}

.lab-catasto-question {
    color: var(--color-paper) !important;
    font-family: var(--font-display);
    font-size: 1.1rem !important;
    font-weight: 600;
    line-height: 1.3 !important;
}

.lab-catasto-counter {
    color: var(--color-accent) !important;
    font-size: 0.78rem !important;
    font-weight: 700;
    letter-spacing: 0.12em;
    line-height: 1.2 !important;
    margin: 0;
    text-transform: uppercase;
}

.lab-catasto-progress {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-2);
    align-items: center;
}

.lab-catasto-progress span {
    height: 3px;
    border-radius: 999px;
    background: rgba(232, 181, 74, 0.2);
    transition: all var(--transition-fast);
}

.lab-catasto-progress span.is-active,
.lab-catasto-progress span.is-complete {
    background: var(--color-accent);
}

.lab-catasto-progress span.is-active {
    box-shadow: 0 0 0 3px rgba(232, 181, 74, 0.12);
}

.lab-flashcard-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
}

.lab-flashcard {
    width: 100%;
    perspective: 1000px;
}

.lab-flashcard-inner {
    position: relative;
    min-height: 128px;
    transition: transform 0.55s ease;
    transform-style: preserve-3d;
}

.lab-flashcard.is-flipped .lab-flashcard-inner {
    transform: rotateY(180deg);
}

.lab-flashcard-front,
.lab-flashcard-back {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-line);
    background: var(--color-paper);
    padding: var(--space-3);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-2);
    box-shadow: var(--shadow-md);
}

.lab-flashcard-back {
    transform: rotateY(180deg);
    padding-top: var(--space-5);
}

.lab-flashcard-answer-tag {
    position: absolute;
    top: var(--space-2);
    left: var(--space-3);
    color: var(--color-accent-dark);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    line-height: 1;
    text-transform: uppercase;
}

.lab-flashcard.is-correct .lab-flashcard-front {
    background: var(--color-accent-soft);
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(232, 181, 74, 0.35), var(--shadow-md);
}

.lab-flashcard.is-wrong .lab-flashcard-front {
    background: var(--color-dark);
    border-color: rgba(232, 181, 74, 0.35);
    box-shadow: 0 0 0 3px rgba(13, 27, 42, 0.45), var(--shadow-md);
}

.lab-flashcard-case,
.lab-flashcard-explanation {
    color: var(--color-ink-soft) !important;
    font-size: 0.94rem !important;
    line-height: 1.5 !important;
    margin: 0;
}

.lab-flashcard.is-wrong .lab-flashcard-case {
    color: var(--color-on-dark-soft) !important;
}

.lab-flashcard-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2);
    width: 100%;
    position: relative;
    z-index: 2;
    margin-top: var(--space-1);
}

.lab-flashcard-btn {
    width: 100%;
    justify-content: center;
    padding-block: var(--space-2);
    background: var(--color-paper);
    border: 1px solid var(--color-line);
    color: var(--color-ink);
    opacity: 1;
}

.lab-flashcard-btn:hover,
.lab-flashcard-btn:focus-visible {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-dark);
}

.lab-flashcard-btn.is-correct {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-dark);
}

.lab-flashcard-btn.is-wrong {
    background: var(--color-dark);
    border-color: rgba(232, 181, 74, 0.45);
    color: var(--color-paper);
}

.lab-flashcard-next {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(232, 181, 74, 0.5);
    background: transparent;
    color: var(--color-accent);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.lab-flashcard-next[hidden],
.lab-flashcard-finish[hidden],
.lab-catasto-guide[hidden] {
    display: none !important;
}

.lab-flashcard-next:hover {
    border-color: var(--color-accent);
    background: rgba(232, 181, 74, 0.12);
    transform: translateX(3px);
}

.lab-flashcard-finish {
    align-self: center;
}

.lab-catasto-guide {
    align-self: center;
}

.lab-catasto-final {
    color: var(--color-accent) !important;
    font-style: italic;
    font-family: var(--font-display);
    font-size: 1rem !important;
    text-align: center;
    line-height: 1.45 !important;
    margin: 0;
}

@media (max-width: 768px) {
    .lab-modal-panel {
        width: min(100%, calc(100% - 1rem));
        max-height: calc(100vh - 1rem);
    }

    .lab-modal-content {
        padding: var(--space-4);
    }

    .lab-modal-close {
        top: var(--space-2);
        right: var(--space-2);
    }

    .lab-quiz-definitions,
    .lab-quiz-options {
        grid-template-columns: 1fr;
    }

    .lab-compare-handle {
        width: 36px;
        margin-left: -18px;
    }

    .lab-compare-handle-grip {
        width: 32px;
        height: 32px;
    }

    .lab-flashcard-inner {
        min-height: 160px;
    }

    .lab-flashcard-front,
    .lab-flashcard-back {
        padding: var(--space-3);
    }
}

/* ==========================================================================
   10. SERVIZI (ACCORDION)
   ========================================================================== */
.services {
    background: var(--color-dark);
    color: var(--color-on-dark);
}

.services .section-title {
    color: var(--color-on-dark);
}

.services .section-title em {
    color: var(--color-accent);
}

.services .section-sub {
    color: var(--color-on-dark-soft);
}

.accordion {
    margin-top: var(--space-6);
    border-top: 1px solid rgba(232, 181, 74, 0.2);
}

.accordion-item {
    border-bottom: 1px solid rgba(232, 181, 74, 0.2);
}

.accordion-trigger {
    width: 100%;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-5);
    padding: var(--space-6) 0;
    text-align: left;
    font-family: var(--font-display);
    font-weight: 500;
    transition: padding var(--transition-base);
}

.accordion-trigger:hover {
    padding-left: var(--space-3);
}

.accordion-number {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    font-family: var(--font-sans);
    letter-spacing: 0.1em;
}

.accordion-title {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    color: var(--color-on-dark);
    line-height: 1.2;
    transition: color var(--transition-fast);
}

.accordion-trigger:hover .accordion-title {
    color: var(--color-accent);
}

.accordion-icon {
    position: relative;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(232, 181, 74, 0.4);
    flex-shrink: 0;
    transition: all var(--transition-base);
}

.accordion-icon::before,
.accordion-icon::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12px;
    height: 1px;
    background: var(--color-on-dark);
    transform: translate(-50%, -50%);
    transition: transform var(--transition-base);
}

.accordion-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.accordion-trigger[aria-expanded="true"] .accordion-icon {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.accordion-trigger[aria-expanded="true"] .accordion-icon::before,
.accordion-trigger[aria-expanded="true"] .accordion-icon::after {
    background: var(--color-paper);
}

.accordion-trigger[aria-expanded="true"] .accordion-icon::after {
    transform: translate(-50%, -50%) rotate(0deg);
}

.accordion-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.accordion-content {
    padding: 0 0 var(--space-6) calc(var(--space-5) + 2.5rem);
    color: var(--color-on-dark-soft);
    font-size: 1rem;
    line-height: 1.7;
    max-width: 900px;
}

.accordion-content ul {
    display: grid;
    gap: var(--space-2);
}

.accordion-content li {
    padding-left: var(--space-4);
    position: relative;
}

.accordion-content li::before {
    content: "—";
    position: absolute;
    left: -10px;
    color: var(--color-accent);
}

/* ==========================================================================
   11. PORTFOLIO
   ========================================================================== */
.portfolio {
    background: var(--color-bg);
}

.filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-7);
    padding-bottom: var(--space-5);
    border-bottom: 1px solid var(--color-line);
}

.filter-btn {
    padding: 0.55rem 1.25rem;
    font-size: 0.9rem;
    border-radius: 100px;
    border: 1px solid var(--color-line-strong);
    color: var(--color-ink-soft);
    transition: all var(--transition-base);
    background: var(--color-paper);
}

.filter-btn:hover {
    border-color: var(--color-ink);
    color: var(--color-ink);
}

.filter-btn.is-active {
    background: var(--color-ink);
    color: var(--color-bg);
    border-color: var(--color-ink);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: var(--space-5);
}

.project-card {
    background: var(--color-paper);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-line);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
    cursor: pointer;
}

.project-card.is-hidden {
    display: none;
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.project-card:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.project-cover {
    aspect-ratio: 4 / 3;
    background:
        linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-alt) 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    padding: var(--space-5);
}

.project-cover-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.project-cover::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(to right, rgba(232, 181, 74, 0.12) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(232, 181, 74, 0.12) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.6;
    transition: transform 1.2s var(--ease-out);
}

.project-card:hover .project-cover::before {
    transform: scale(1.1);
}

.project-cover-label {
    position: relative;
    z-index: 1;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    padding: var(--space-2) var(--space-3);
    background: rgba(13, 27, 42, 0.6);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(232, 181, 74, 0.3);
}

.project-body {
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    flex-grow: 1;
}

.project-body h3 {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 1.25rem;
    line-height: 1.25;
    color: var(--color-ink);
}

.project-desc {
    color: var(--color-ink-soft);
    font-size: 1rem;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.project-tags li {
    font-size: 0.8rem;
    font-weight: 500;
    padding: var(--space-1) var(--space-3);
    background: var(--color-bg-alt);
    color: var(--color-ink-soft);
    border-radius: 100px;
    border: 1px solid var(--color-line);
}

.ongoing {
    margin-top: var(--space-9);
    padding: var(--space-7);
    background: var(--color-paper);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-line);
}

.ongoing-title {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 1.5rem;
    color: var(--color-ink);
    margin-bottom: var(--space-4);
}

.ongoing-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.ongoing-list li {
    padding: var(--space-3) var(--space-5);
    background: var(--color-bg-alt);
    border-radius: 100px;
    font-size: 0.9rem;
    color: var(--color-ink-soft);
    font-weight: 500;
    border: 1px dashed var(--color-line-strong);
}

/* ==========================================================================
   MODALE PROGETTO
   ========================================================================== */
.project-modal {
    position: fixed;
    inset: 0;
    z-index: 300;
    display: none;
}

.project-modal.is-open {
    display: grid;
}

.project-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(13, 27, 42, 0.75);
}

.project-modal-panel {
    position: relative;
    z-index: 1;
    margin: auto;
    width: min(1400px, calc(100% - 2rem));
    max-height: calc(100vh - 2rem);
    overflow: auto;
    border-radius: var(--radius-lg);
    background: var(--color-paper);
    border: 1px solid var(--color-line);
    box-shadow: var(--shadow-lg);
    padding: var(--space-6);
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: var(--space-6);
}

.project-modal-close {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    width: 40px;
    height: 40px;
    border-radius: 999px;
    border: 1px solid var(--color-line-strong);
    background: var(--color-bg-alt);
    color: var(--color-ink);
    font-size: 1.7rem;
    line-height: 1;
}

.project-modal-media {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.project-modal-planimetria-section,
.project-modal-main-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.project-modal-section-title {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-ink-mute);
    margin: 0;
}

#projectModalPlanimetria {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-line);
    background: var(--color-bg-alt);
}

#projectModalPlanimetria.contain-fit {
    object-fit: contain;
}

.project-modal-plani-thumbs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: var(--space-2);
}

.project-modal-plani-thumb {
    border: 2px solid var(--color-line);
    border-radius: var(--radius-sm);
    overflow: hidden;
    padding: 0;
    background: var(--color-paper);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.project-modal-plani-thumb img {
    width: 100%;
    height: 80px;
    object-fit: contain;
}

.project-modal-plani-thumb.is-active {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(232, 181, 74, 0.2);
}

.project-modal-plani-thumb:hover {
    border-color: var(--color-accent-dark);
}

#projectModalMainImage {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-line);
    background: var(--color-bg-alt);
}

.project-modal-placeholder {
    width: 100%;
    aspect-ratio: 4 / 3;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-line);
    color: var(--color-ink-mute);
    background: var(--color-bg-alt);
    display: grid;
    place-items: center;
    font-size: 0.95rem;
}

.project-modal-thumbs {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-3);
    width: 100%;
}

@media (max-width: 1200px) {
    .project-modal-thumbs {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .project-modal-thumbs {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .project-modal-thumbs {
        grid-template-columns: repeat(2, 1fr);
    }
}

.project-modal-thumb {
    border: 1px solid var(--color-line);
    border-radius: var(--radius-sm);
    overflow: hidden;
    padding: 0;
    background: var(--color-paper);
    cursor: pointer;
    transition: all var(--transition-fast);
    aspect-ratio: 1 / 1;
}

.project-modal-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-modal-thumb:hover {
    border-color: var(--color-accent-dark);
    transform: scale(1.05);
}

.project-modal-thumb.is-active {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-paper), 0 0 0 4px var(--color-accent);
}

.project-modal-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

/* Layout 2x2 Grid - Posizionamento sezioni */
.project-modal-top-left {
    grid-column: 1;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.project-modal-top-right {
    grid-column: 2;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.project-modal-bottom-left {
    grid-column: 1;
    grid-row: 2;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.project-modal-bottom-right {
    grid-column: 2;
    grid-row: 2;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.project-modal-category {
    color: var(--color-accent-dark);
    letter-spacing: 0.12em;
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 600;
}

.project-modal-content h3 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    line-height: 1.15;
    color: var(--color-ink);
}

.project-modal-content p {
    color: var(--color-ink-soft);
}

.project-modal-meta {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
}

.project-modal-meta div {
    padding: var(--space-3);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-sm);
    background: var(--color-bg-alt);
}

.project-modal-meta dt {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-ink-mute);
    margin-bottom: 0.25rem;
}

.project-modal-meta dd {
    color: var(--color-ink);
    font-weight: 600;
}

.project-modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.project-modal-tags li {
    font-size: 0.8rem;
    font-weight: 500;
    padding: var(--space-1) var(--space-3);
    border-radius: 100px;
    border: 1px solid var(--color-line);
    background: var(--color-bg-alt);
    color: var(--color-ink-soft);
}

/* RESPONSIVE DESIGN - Layout modale */
@media (max-width: 1024px) {
    .project-modal-panel {
        width: min(1200px, calc(100% - 1rem));
        padding: var(--space-4);
        gap: var(--space-4);
    }

    .project-modal-thumbs {
        grid-template-columns: repeat(3, 1fr);
    }

    .project-modal-meta {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .project-modal-panel {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto auto;
        width: min(100%, calc(100% - 1rem));
        max-height: calc(100vh - 1rem);
        padding: var(--space-3);
        gap: var(--space-3);
    }

    .project-modal-top-left {
        grid-column: 1;
        grid-row: 1;
    }

    .project-modal-top-right {
        grid-column: 1;
        grid-row: 2;
    }

    .project-modal-bottom-left {
        grid-column: 1;
        grid-row: 3;
    }

    .project-modal-bottom-right {
        grid-column: 1;
        grid-row: 4;
    }

    .project-modal-thumbs {
        grid-template-columns: repeat(2, 1fr);
    }

    .project-modal-meta {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .project-modal-panel {
        padding: var(--space-2);
        gap: var(--space-2);
    }

    .project-modal-thumbs {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-2);
    }

    .project-modal-close {
        width: 32px;
        height: 32px;
        font-size: 1.4rem;
    }
}

body.is-modal-open {
    overflow: hidden;
}

/* ==========================================================================
   11. LIGHTBOX (zoom immagine)
   ========================================================================== */
.image-lightbox {
    position: fixed;
    inset: 0;
    z-index: 400;
    display: none;
    align-items: center;
    justify-content: center;
}

.image-lightbox.is-open {
    display: flex;
}

.lightbox-overlay {
    position: absolute;
    inset: 0;
    background: rgba(13, 27, 42, 0.95);
    cursor: pointer;
}

.lightbox-content {
    position: relative;
    z-index: 1;
    width: 90%;
    height: 90%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
}

.lightbox-image-container {
    position: relative;
    width: auto;
    height: auto;
    max-width: 85vw;
    max-height: 85vh;
    overflow: hidden;
    background: rgba(13, 27, 42, 0.3);
    border-radius: 4px;
}

.lightbox-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    transform-origin: center center;
    transition: transform 0.2s ease-out;
}

/* Scrollbars */
.lightbox-scrollbar {
    position: absolute;
    background: rgba(13, 27, 42, 0.4);
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: 10;
}

.lightbox-image-container:hover .lightbox-scrollbar {
    opacity: 1;
}

.lightbox-scrollbar.lightbox-scrollbar-vertical {
    right: var(--space-2);
    top: 0;
    width: 6px;
    height: 100%;
    border-radius: 3px;
}

.lightbox-scrollbar.lightbox-scrollbar-horizontal {
    bottom: var(--space-2);
    left: 0;
    height: 6px;
    width: 100%;
    border-radius: 3px;
}

.lightbox-scrollbar-thumb {
    position: absolute;
    background: var(--color-accent);
    border-radius: 3px;
    transition: background var(--transition-fast);
    cursor: pointer;
}

.lightbox-scrollbar-vertical .lightbox-scrollbar-thumb {
    width: 100%;
    top: 0;
    left: 0;
    min-height: 30px;
}

.lightbox-scrollbar-horizontal .lightbox-scrollbar-thumb {
    height: 100%;
    left: 0;
    top: 0;
    min-width: 30px;
}

.lightbox-scrollbar-thumb:hover {
    background: var(--color-accent-dark);
}

.lightbox-scrollbar-thumb.is-dragging {
    background: var(--color-accent-dark);
}

.lightbox-image-label {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 120px;
    background: var(--color-dark);
    border-left: 2px solid var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 4;
    transition: right var(--transition-fast);
}

.lightbox-image-label-text {
    color: var(--color-accent);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 2px;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    text-transform: uppercase;
    white-space: nowrap;
}

.lightbox-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 50px;
    height: 50px;
    border-radius: 999px;
    border: 2px solid rgba(247, 245, 240, 0.5);
    background: rgba(13, 27, 42, 0.8);
    color: var(--color-on-dark);
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 2;
}

.lightbox-close:hover {
    border-color: var(--color-accent);
    background: rgba(13, 27, 42, 1);
}

.lightbox-nav-prev,
.lightbox-nav-next {
    position: absolute;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--color-on-dark);
    border: 1px solid rgba(247, 245, 240, 0.3);
    background: rgba(13, 27, 42, 0.6);
    cursor: pointer;
    z-index: 3;
    transition: all var(--transition-fast);
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-nav-prev:hover:not(:disabled),
.lightbox-nav-next:hover:not(:disabled) {
    border-color: var(--color-accent);
    background: rgba(13, 27, 42, 0.9);
}

.lightbox-nav-prev:disabled,
.lightbox-nav-next:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.lightbox-nav-prev {
    left: var(--space-3);
}

.lightbox-nav-next {
    right: var(--space-3);
}

.lightbox-zoom-controls {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    background: transparent;
    padding: 0;
    z-index: 5;
}

.lightbox-zoom-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(13, 27, 42, 0.85);
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.lightbox-zoom-btn:hover:not(:disabled) {
    background: var(--color-accent);
    color: var(--color-dark);
    box-shadow: 0 4px 12px rgba(232, 181, 74, 0.2);
    transform: translateY(-2px);
}

.lightbox-zoom-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    border-color: rgba(232, 181, 74, 0.4);
    color: rgba(232, 181, 74, 0.4);
}

.lightbox-zoom-level {
    color: var(--color-accent);
    font-size: 0.8125rem;
    font-weight: 600;
    min-width: 55px;
    text-align: center;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.lightbox-zoom-reset {
    padding: var(--space-1) var(--space-3);
    background: transparent;
    border: 1px solid rgba(232, 181, 74, 0.6);
    color: var(--color-accent);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.lightbox-zoom-reset:hover {
    background: var(--color-accent);
    color: var(--color-dark);
    border-color: var(--color-accent);
    box-shadow: 0 4px 12px rgba(232, 181, 74, 0.2);
    transform: translateY(-2px);
}

/* ==========================================================================
   12. CONTACT
   ========================================================================== */
.contact {
    background: var(--color-dark);
    color: var(--color-on-dark);
}

.contact .eyebrow {
    color: var(--color-accent);
}

.contact .section-title {
    color: var(--color-on-dark);
}

.contact .section-title em {
    color: var(--color-accent);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-9);
    align-items: start;
}

.contact-lead {
    margin-top: var(--space-5);
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-on-dark-soft);
    max-width: 50ch;
}

.contact-lead strong {
    color: var(--color-on-dark);
    font-weight: 600;
}

.contact-info {
    margin-top: var(--space-7);
    display: grid;
    gap: var(--space-5);
}

.contact-info li {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.contact-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-ink-mute);
}

.contact-info a,
.contact-info address {
    font-size: 1.125rem;
    color: var(--color-on-dark);
    font-style: normal;
    line-height: 1.5;
    transition: color var(--transition-fast);
}

.contact-info a:hover {
    color: var(--color-accent);
}

/* Form */
.contact-form {
    background: rgba(255, 255, 255, 0.03);
    padding: var(--space-7);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.08);
    display: grid;
    gap: var(--space-5);
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-row label {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--color-on-dark);
}

.form-row input,
.form-row select,
.form-row textarea {
    font: inherit;
    padding: 0.85rem 1rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    color: var(--color-on-dark);
    transition: all var(--transition-fast);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(255, 255, 255, 0.07);
}

.form-row textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
}

.form-row select {
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='%23f7f5f0' d='M6 8L0 0h12z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
    cursor: pointer;
    color: #0d1b2a;
}

.form-row select:hover {
    background-color: var(--color-accent);
    color: var(--color-ink);
}

.form-row select:focus {
    background-color: var(--color-accent);
    color: var(--color-ink);
}

.form-error {
    font-size: 0.8rem;
    color: #ff8a6e;
    min-height: 1.1em;
}

.form-row.has-error input,
.form-row.has-error select,
.form-row.has-error textarea {
    border-color: #ff8a6e;
}

.form-consent {
    flex-direction: row;
    align-items: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 0.875rem;
    color: var(--color-on-dark-soft);
    cursor: pointer;
}

.checkbox-label input {
    accent-color: var(--color-accent);
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.checkbox-label a {
    color: var(--color-accent);
    text-decoration: underline;
}

.contact-form .btn-primary {
    background: var(--color-accent);
    color: var(--color-ink);
    margin-top: var(--space-2);
}

.contact-form .btn-primary:hover {
    background: var(--color-accent-dark);
    color: var(--color-ink);
}

.form-feedback {
    text-align: center;
    font-size: 0.95rem;
    min-height: 1.5em;
    color: var(--color-accent);
}

.form-feedback.is-success {
    color: #b6f0c4;
}

.form-feedback.is-error {
    color: #ff8a6e;
}

/* ==========================================================================
   13. FOOTER
   ========================================================================== */
.site-footer {
    background: var(--color-dark);
    color: var(--color-on-dark);
    padding-block: var(--space-8) var(--space-5);
    border-top: 1px solid rgba(232, 181, 74, 0.15);
}

.footer-inner {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-8);
    padding-bottom: var(--space-7);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-brand .logo-mark,
.footer-brand .logo-text {
    display: inline;
    color: var(--color-on-dark);
}

.footer-brand .logo-mark {
    color: var(--color-accent);
    margin-right: var(--space-2);
}

.footer-tagline {
    color: var(--color-on-dark-mute);
    font-size: 0.9rem;
    margin-top: var(--space-3);
}

.footer-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.footer-col h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-on-dark);
    margin-bottom: var(--space-4);
    font-weight: 600;
}

.footer-col ul {
    display: grid;
    gap: var(--space-3);
}

.footer-col a {
    font-size: 0.95rem;
    color: var(--color-on-dark-soft);
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    margin-top: var(--space-5);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-3);
    font-size: 0.85rem;
    color: var(--color-on-dark-mute);
}

.footer-bottom a {
    color: var(--color-on-dark-soft);
}

.footer-bottom a:hover {
    color: var(--color-accent);
}

/* ==========================================================================
   13.5 PAGINE ARTICOLO (Laboratorio)
   ========================================================================== */
body.article-page {
    background: var(--color-bg);
}

.article-main {
    padding-top: 100px;
    padding-bottom: var(--space-9);
}

.article {
    max-width: 820px;
    margin: 0 auto;
    padding: 0 var(--container-pad);
}

.article-back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.9rem;
    color: var(--color-ink-mute);
    margin-bottom: var(--space-5);
    transition: color var(--transition-fast);
}

.article-back:hover {
    color: var(--color-ink);
}

.article-wip-gate {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-line);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: var(--space-6);
    margin-bottom: var(--space-7);
}

.article-wip-eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent-dark);
    margin-bottom: var(--space-3);
}

.article-wip-gate h1 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 4.5vw, 2.2rem);
    line-height: 1.2;
    margin-bottom: var(--space-4);
    color: var(--color-ink);
}

.article-wip-gate p {
    color: var(--color-ink-soft);
    margin-bottom: var(--space-4);
}

.article-wip-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

body.article-page.is-wip .article > *:not(.article-back):not(.article-wip-gate) {
    display: none;
}

.article-hero {
    margin-bottom: var(--space-7);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-line);
}

.article-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-accent-dark);
    background: var(--color-accent-soft);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-4);
}

.article-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 2.75rem);
    line-height: 1.15;
    color: var(--color-ink);
    margin-bottom: var(--space-4);
}

.article-lead {
    font-size: 1.15rem;
    line-height: 1.75;
    color: var(--color-ink-soft);
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-top: var(--space-5);
    font-size: 0.85rem;
    color: var(--color-ink-mute);
}

.article-toc {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    padding: var(--space-5) var(--space-6);
    margin-bottom: var(--space-7);
}

.article-toc h2 {
    font-family: var(--font-display);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-ink-mute);
    margin-bottom: var(--space-4);
}

.article-toc ol {
    list-style: decimal;
    padding-left: 1.25rem;
    display: grid;
    gap: var(--space-2);
}

.article-toc a {
    color: var(--color-ink-soft);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.article-toc a:hover {
    color: var(--color-accent-dark);
}

.article-section {
    margin-bottom: var(--space-7);
}

.article-section h2 {
    font-family: var(--font-display);
    font-size: clamp(1.35rem, 3vw, 1.65rem);
    color: var(--color-ink);
    margin-bottom: var(--space-4);
    padding-top: var(--space-2);
}

.article-section h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--color-ink);
    margin: var(--space-5) 0 var(--space-3);
}

.article-section p,
.article-section li {
    color: var(--color-ink-soft);
    margin-bottom: var(--space-4);
}

.article-section ul,
.article-section ol {
    padding-left: 1.25rem;
    margin-bottom: var(--space-4);
}

.article-section ul {
    list-style: disc;
}

.article-section ol {
    list-style: decimal;
}

.article-box {
    border-radius: var(--radius-md);
    padding: var(--space-5) var(--space-6);
    margin: var(--space-5) 0 var(--space-6);
}

.article-box h3 {
    font-family: var(--font-display);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-3);
}

.article-box p:last-child,
.article-box li:last-child {
    margin-bottom: 0;
}

.article-box--simple {
    background: var(--color-accent-soft);
    border-left: 4px solid var(--color-accent);
}

.article-box--simple h3 {
    color: var(--color-accent-dark);
}

.article-box--law {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-line);
    border-left: 4px solid var(--color-dark);
}

.article-box--law h3 {
    color: var(--color-ink);
}

.article-box--warning {
    background: #fff8f0;
    border-left: 4px solid var(--color-accent-dark);
}

.article-image-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
    margin: var(--space-6) 0;
}

.article-image-grid .article-image-block {
    margin: 0;
}

.article-image-grid img,
.article-image-grid .article-image-block img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    object-position: center center;
    border-radius: var(--radius-sm);
    display: block;
}

@media (max-width: 600px) {
    .article-image-grid {
        grid-template-columns: 1fr;
    }
    .article-image-grid img,
    .article-image-grid .article-image-block img {
        height: 240px;
    }
}

.article-prompt-block {
    background: var(--color-ink);
    color: var(--color-bg);
    border-radius: var(--radius-md);
    padding: var(--space-5) var(--space-6);
    margin: var(--space-5) 0 var(--space-6);
    font-family: var(--font-sans);
    font-size: 0.88rem;
    line-height: 1.75;
    border-left: 4px solid var(--color-accent);
    quotes: none;
}

/* ── LIGHTBOX ARTICOLO ── */
.article-lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9000;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.article-lightbox.is-open {
    display: flex;
}

.article-lightbox__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(13, 27, 42, 0.92);
    cursor: zoom-out;
}

.article-lightbox__close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    z-index: 1;
    background: rgba(255,255,255,0.12);
    border: none;
    color: #fff;
    font-size: 1.25rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.article-lightbox__close:hover {
    background: rgba(255,255,255,0.25);
}

.article-lightbox__figure {
    position: relative;
    z-index: 1;
    max-width: 92vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.article-lightbox__figure img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 24px 64px rgba(0,0,0,0.5);
    display: block;
}

.article-lightbox__figure figcaption {
    color: rgba(255,255,255,0.7);
    font-size: 0.85rem;
    text-align: center;
}

.article-compare-inline {
    margin: var(--space-6) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-line);
}

.article-compare-inline img {
    width: 100%;
    height: auto;
}

.article-compare-caption {
    font-size: 0.9rem;
    color: var(--color-ink-mute);
    text-align: center;
    margin-top: var(--space-3);
    font-style: italic;
}

.article-table-wrap {
    overflow-x: auto;
    margin: var(--space-5) 0 var(--space-6);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
}

.article-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}

.article-table th,
.article-table td {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--color-line);
    vertical-align: top;
}

.article-table th {
    background: var(--color-dark);
    color: var(--color-on-dark);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.article-table tr:last-child td {
    border-bottom: none;
}

.article-table tr:nth-child(even) td {
    background: var(--color-bg-alt);
}

.article-related {
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-line);
}

.article-related h2 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: var(--space-4);
}

.article-related-list {
    display: grid;
    gap: var(--space-3);
}

.article-related-list a {
    display: block;
    padding: var(--space-4) var(--space-5);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    color: var(--color-ink-soft);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.article-related-list a:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-sm);
    color: var(--color-ink);
}

.article-related-list strong {
    display: block;
    color: var(--color-ink);
    margin-bottom: var(--space-1);
}

.article-related-list .is-soon {
    display: block;
    padding: var(--space-4) var(--space-5);
    background: var(--color-bg-alt);
    border: 1px dashed var(--color-line);
    border-radius: var(--radius-md);
    color: var(--color-ink-mute);
    opacity: 0.75;
    cursor: default;
    pointer-events: none;
}

.article-cta {
    margin-top: var(--space-8);
    padding: var(--space-6);
    background: var(--color-dark);
    color: var(--color-on-dark);
    border-radius: var(--radius-lg);
    text-align: center;
}

.article-cta h2 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    color: var(--color-on-dark);
    margin-bottom: var(--space-3);
}

.article-cta p {
    color: var(--color-on-dark-soft);
    margin-bottom: var(--space-5);
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.article-cta .btn-primary {
    display: inline-block;
}

.article-brief {
    background: var(--color-dark);
    color: var(--color-on-dark);
    border-radius: var(--radius-md);
    padding: var(--space-5) var(--space-6);
    margin-bottom: var(--space-7);
}

.article-brief h2 {
    font-family: var(--font-display);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-accent);
    margin-bottom: var(--space-4);
}

.article-brief ul {
    list-style: none;
    padding: 0;
    display: grid;
    gap: var(--space-3);
}

.article-brief li {
    position: relative;
    padding-left: 1.25rem;
    color: var(--color-on-dark-soft);
    margin-bottom: 0;
    font-size: 0.95rem;
    line-height: 1.6;
}

.article-brief li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 600;
}

.article-callout {
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
    margin: var(--space-5) 0;
    font-size: 0.92rem;
    border: 1px solid var(--color-line);
    background: var(--color-bg-alt);
}

.article-callout strong {
    display: block;
    font-family: var(--font-display);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-ink-mute);
    margin-bottom: var(--space-2);
}

.article-image-block {
    margin: var(--space-6) 0;
}

.article-image-block img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-line);
}

.article-image-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    padding: var(--space-6);
    background: var(--color-bg-alt);
    border: 2px dashed var(--color-line-strong);
    border-radius: var(--radius-md);
    text-align: center;
    color: var(--color-ink-mute);
    font-size: 0.9rem;
}

.article-image-placeholder span {
    font-family: var(--font-display);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent-dark);
    margin-bottom: var(--space-2);
}

.article-image-caption {
    font-size: 0.85rem;
    color: var(--color-ink-mute);
    text-align: center;
    margin-top: var(--space-2);
    font-style: italic;
}

.article-faq {
    margin-top: var(--space-7);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-line);
}

.article-faq h2 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    margin-bottom: var(--space-5);
}

.article-faq-item {
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-3);
    overflow: hidden;
    background: var(--color-bg-alt);
}

.article-faq-item summary {
    padding: var(--space-4) var(--space-5);
    font-weight: 600;
    color: var(--color-ink);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-3);
}

.article-faq-item summary::-webkit-details-marker {
    display: none;
}

.article-faq-item summary::after {
    content: "+";
    font-size: 1.25rem;
    color: var(--color-accent-dark);
    flex-shrink: 0;
}

.article-faq-item[open] summary::after {
    content: "−";
}

.article-faq-item p {
    padding: 0 var(--space-5) var(--space-4);
    margin: 0;
    color: var(--color-ink-soft);
    font-size: 0.95rem;
    border-top: 1px solid var(--color-line);
    padding-top: var(--space-4);
}

.article-disclaimer {
    margin-top: var(--space-6);
    padding: var(--space-4) var(--space-5);
    font-size: 0.82rem;
    color: var(--color-ink-mute);
    border-top: 1px solid var(--color-line);
    line-height: 1.6;
}

.article-section h4 {
    font-size: 1rem;
    color: var(--color-ink-soft);
    margin: var(--space-4) 0 var(--space-2);
    font-weight: 600;
}

/* ==========================================================================
   14. RESPONSIVE
   ========================================================================== */
@media (max-width: 960px) {
    .about-grid,
    .contact-grid,
    .footer-inner {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .footer-cols {
        grid-template-columns: repeat(3, 1fr);
    }

    .project-modal-panel {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .article-toc {
        padding: var(--space-4) var(--space-5);
    }

    .article-box,
    .article-brief {
        padding: var(--space-4) var(--space-5);
    }

    .article-table th,
    .article-table td {
        padding: var(--space-2) var(--space-3);
        font-size: 0.85rem;
    }

    .article-image-placeholder {
        min-height: 160px;
        padding: var(--space-4);
    }

    .article-faq-item summary {
        font-size: 0.95rem;
        padding: var(--space-3) var(--space-4);
    }

    .main-nav {
        position: fixed;
        inset: 0;
        background: var(--color-dark);
        padding: var(--space-9) var(--container-pad);
        transform: translateX(100%);
        transition: transform var(--transition-base);
        z-index: 105;
    }

    .main-nav.is-open {
        transform: translateX(0);
    }

    .main-nav ul {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-5);
    }

    .main-nav a {
        font-family: var(--font-display);
        font-size: 1.75rem;
        color: var(--color-on-dark);
    }

    .nav-cta {
        padding: 0.75rem 1.5rem !important;
        margin-top: var(--space-3);
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        min-height: 90vh;
        padding-top: 100px;
    }

    .accordion-content {
        padding-left: var(--space-4);
    }

    .footer-cols {
        grid-template-columns: 1fr;
        gap: var(--space-5);
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .ongoing {
        padding: var(--space-5);
    }

    .project-modal-panel {
        width: calc(100% - 1.2rem);
        max-height: calc(100vh - 1.2rem);
        padding: var(--space-5);
    }

    .project-modal-meta {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: clamp(2rem, 11vw, 3rem);
    }

    .hero-meta {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }

    .accordion-trigger {
        grid-template-columns: auto 1fr;
        gap: var(--space-3);
    }

    .accordion-icon {
        grid-column: 2;
        margin-left: auto;
        width: 28px;
        height: 28px;
    }
}