/* ═══════════════════════════════════════════════════════════════
   DD Sintering — Digital Dental Technology
   Spectral + Archivo, cool neutrals, navy blue accent
   ═══════════════════════════════════════════════════════════════ */


/* ── Minimal Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { background: none; border: none; cursor: pointer; font: inherit; color: inherit; }

/* ── Design Tokens: DD Sintering Modern Clinical ── */
:root {
    /* Palette: Clean white/gray + navy blue (DD Sintering brand) */
    --color-graphite: #1a1d23;           /* Deep charcoal text */
    --color-slate: #475569;              /* Body text gray */
    --color-stone: #94a3b8;              /* Muted gray */
    --color-lab-white: #fafbfc;          /* Clean white background */
    --color-ceramic: #f4f5f7;            /* Light gray surface */
    --color-border: #e1e4e8;             /* Border gray */

    /* Navy blue accent (DD Sintering brand color) */
    --color-sage: #112D4E;               /* Primary navy brand */
    --color-sage-light: #2e4a64;         /* Lighter navy hover */
    --color-sage-dark: #0e2a44;          /* Deep navy */

    /* Enhanced contrast for AAA compliance */
    --color-sage-contrast: #1e3a54;      /* 8.2:1 on white - AAA */
    --color-sage-aaa: #0e2a44;           /* 11.5:1 on white - AAA */
    --color-text-primary: #1a1d23;       /* 16.5:1 - AAA */
    --color-text-secondary: #475569;     /* 9.2:1 - AAA */
    --color-link: #1e3a54;               /* Navy - professional */

    /* Metallic accent */
    --color-titanium: #B8C5D6;           /* Metallic accent */
    --color-titanium-light: #D4DDE8;     /* Light variant */
    --color-titanium-dark: #8A99AB;      /* Dark variant */

    /* Typography: Archivo (modern geometric sans-serif) */
    --font-display: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-sans: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);

    /* Spacing: Mathematical 4pt grid */
    --space-3xs: 0.25rem;
    --space-2xs: 0.5rem;
    --space-xs: 0.75rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Layout */
    --max-width: 1200px;
    --header-height: 72px;
}

/* ── Base Typography ── */
body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.7;
    color: var(--color-slate);
    background-color: var(--color-lab-white);
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    color: var(--color-graphite);
    line-height: 1.15;
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* ── Skip Link ── */
.skip-link {
    position: absolute;
    top: -999px;
    left: -999px;
    z-index: 10000;
    padding: 0.75em 1.5em;
    background: var(--color-graphite);
    color: #fff;
    font-size: 0.875rem;
}
.skip-link:focus {
    top: 6px;
    left: 6px;
    outline: 4px solid #fff;
    outline-offset: 2px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 10001;
}

/* ═══ FOCUS MANAGEMENT ═══ */
*:focus {
    outline: 3px solid var(--color-sage);
    outline-offset: 2px;
}

a:focus, button:focus {
    outline: 3px solid var(--color-sage);
    outline-offset: 3px;
    box-shadow: 0 0 0 5px rgba(124, 152, 133, 0.2);
}

.btn:focus {
    outline: 3px solid var(--color-graphite);
    outline-offset: 4px;
    transform: scale(1.02);
}

/* ── Screen Reader Utility ── */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    clip-path: inset(50%);
    border: 0;
    white-space: nowrap;
}

.sr-only:focus {
    position: fixed;
    top: 6px;
    left: 6px;
    width: auto;
    height: auto;
    padding: 0.75em 1.5em;
    overflow: visible;
    clip: auto;
    clip-path: none;
    background: var(--color-graphite);
    color: #fff;
    z-index: 10000;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-ceramic); }
::-webkit-scrollbar-thumb { background: var(--color-sage); border-radius: 3px; }

/* ═══════════════════════════════════════════════
   HEADER — Solid precision (NO glass-morphism)
   ═══════════════════════════════════════════════ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--header-height);
    background: var(--color-sage);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    transition: box-shadow 0.3s;
}
.site-header.is-scrolled {
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
    height: 72px;
    position: relative;
}

.header-logo {
    padding: 0;
    margin: 0 var(--space-lg) 0 0;
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
    transition: opacity 0.3s;
}

.header-logo:hover {
    opacity: 0.85;
}

.header-logo img {
    height: 48px;
    width: auto;
    display: block;
    padding: 0;
    margin: 0;
}

.header-nav {
    display: flex;
    gap: var(--space-lg);
}
.header-nav a {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #ffffff;
    padding: 0.5em 0;
    position: relative;
    transition: color 0.3s, opacity 0.3s;
    opacity: 0.85;
}
.header-nav a::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: linear-gradient(90deg,
        var(--color-titanium) 0%,
        rgba(255,255,255,0.9) 100%);
    transition: width 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.header-nav a:hover {
    opacity: 1;
}
.header-nav a.is-active {
    opacity: 1;
}
.header-nav a.is-active::after,
.header-nav a:hover::after {
    width: 100%;
}

.header-actions {
    position: absolute;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-shrink: 0;
}

.header-social {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    color: rgba(255,255,255,0.7);
    background: rgba(255,255,255,0.05);
    border-radius: 4px;
    transition: all 0.2s;
}

.header-social:hover {
    color: rgba(255,255,255,1);
    background: rgba(255,255,255,0.1);
    transform: translateY(-1px);
}

.header-lang {
    display: flex;
    gap: 8px;
    align-items: center;
}
.header-lang a {
    opacity: 0.6;
    transition: opacity 0.2s;
}
.header-lang a:hover,
.header-lang a.is-current {
    opacity: 1;
}
.header-lang img {
    width: 24px;
    height: auto;
    border-radius: 2px;
}

/* Language Dropdown */
.header-lang {
    position: relative;
}

.lang-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    color: rgba(255,255,255,0.9);
    background: rgba(255,255,255,0.05);
    border: none;
    border-radius: 4px;
    transition: background 0.2s;
    cursor: pointer;
}

.lang-toggle:hover {
    background: rgba(255,255,255,0.1);
}

.lang-toggle:focus {
    outline: 2px solid var(--color-sage-light);
    outline-offset: 2px;
}

.lang-toggle[aria-expanded="true"] .lang-toggle-icon {
    transform: rotate(180deg);
}

.lang-toggle-text {
    line-height: 1;
    letter-spacing: 0.05em;
}

.lang-toggle-icon {
    transition: transform 0.2s;
    flex-shrink: 0;
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 140px;
    background: #2a2d35;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
    z-index: 101;
}

.lang-dropdown[aria-hidden="false"] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255,255,255,0.8);
    transition: background 0.2s, color 0.2s;
    cursor: pointer;
}

.lang-dropdown-item:hover {
    background: rgba(255,255,255,0.08);
    color: #ffffff;
}

.lang-dropdown-item:focus {
    outline: 2px solid var(--color-sage-light);
    outline-offset: -2px;
}

.lang-dropdown-item.is-active {
    opacity: 0.5;
    cursor: default;
    pointer-events: none;
}

.lang-dropdown-item img {
    width: 20px;
    height: auto;
    border-radius: 2px;
    flex-shrink: 0;
}

.lang-dropdown-text {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: 1;
    gap: 8px;
}

.lang-dropdown-name {
    flex: 1;
}

.lang-dropdown-code {
    font-size: 0.75rem;
    font-weight: 600;
    opacity: 0.7;
    letter-spacing: 0.05em;
}

/* Mobile dropdown full-width */
.header-mobile-lang {
    position: relative;
}

.header-mobile-lang .lang-dropdown {
    position: relative;
    top: 8px;
    right: auto;
    width: 100%;
}

/* Burger */
.header-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    padding: 0;
}
.header-burger span {
    display: block;
    width: 100%;
    height: 2px;
    background: #fff;
    border-radius: 1px;
    transition: transform 0.3s, opacity 0.3s;
}
.header-burger.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.header-burger.is-active span:nth-child(2) {
    opacity: 0;
}
.header-burger.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ═══════════════════════════════════════════════
   MOBILE NAVIGATION OVERLAY
   ═══════════════════════════════════════════════ */
.header-mobile-overlay {
    position: fixed;
    inset: 0;
    z-index: 99;
    pointer-events: none;
    visibility: hidden;
}
.header-mobile-overlay.is-open {
    pointer-events: auto;
    visibility: visible;
}

.header-mobile-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(26, 29, 35, 0.7);
    opacity: 0;
    transition: opacity 0.3s;
}
.header-mobile-overlay.is-open .header-mobile-backdrop {
    opacity: 1;
}

.header-mobile-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 280px;
    max-width: 85vw;
    height: 100%;
    background: var(--color-graphite);
    padding: calc(var(--header-height) + var(--space-md)) var(--space-md) var(--space-md);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.header-mobile-overlay.is-open .header-mobile-panel {
    transform: translateX(0);
}

.header-mobile-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 4px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.header-mobile-close:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.header-mobile-close:focus {
    outline: 3px solid var(--color-sage);
    outline-offset: 2px;
}

.header-mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.header-mobile-nav a {
    display: block;
    padding: var(--space-sm) 0;
    font-size: 1.125rem;
    font-family: var(--font-display);
    color: rgba(255,255,255,0.7);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: color 0.3s, padding-left 0.3s;
}
.header-mobile-nav a:hover,
.header-mobile-nav a.is-active {
    color: var(--color-sage-light);
    padding-left: var(--space-xs);
}

.header-mobile-footer {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}
.header-mobile-lang {
    display: flex;
    gap: 8px;
}
.header-mobile-lang img {
    width: 24px;
    height: auto;
    border-radius: 2px;
}
.header-mobile-lang a {
    opacity: 0.5;
    transition: opacity 0.3s;
}
.header-mobile-lang a:hover,
.header-mobile-lang a.is-current {
    opacity: 1;
}
.header-mobile-contact {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.5);
    line-height: 1.8;
}
.header-mobile-contact a {
    color: rgba(255,255,255,0.7);
    transition: color 0.3s;
}
.header-mobile-contact a:hover {
    color: var(--color-sage-light);
}

/* ═══════════════════════════════════════════════
   HERO SECTION — Bold typography, static image
   ═══════════════════════════════════════════════ */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    background: url('img/hero-frameworks.jpg') center / cover no-repeat;
    filter: blur(3px);
    /* NO Ken Burns animation - static precision */
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom,
        rgba(15, 23, 42, 0.3) 0%,
        rgba(15, 23, 42, 0.6) 100%);
}

.hero__content {
    position: relative;
    z-index: 2;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-md);
    text-align: left;
}

.hero__eyebrow {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-sm);
    text-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.hero__title {
    font-family: var(--font-sans);
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.01em;
    color: #fff;
    margin-bottom: var(--space-xs);
    text-shadow: 0 4px 16px rgba(0,0,0,0.5);
}

.hero__subtitle {
    font-family: var(--font-sans);
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 400;
    color: rgba(255,255,255,0.9);
    margin-bottom: var(--space-lg);
    max-width: 540px;
}

/* Scroll cue */
.hero__scroll-cue {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}
.hero__scroll-cue span {
    display: block;
    width: 2px;
    height: 48px;
    background: linear-gradient(to bottom,
        var(--color-titanium) 0%,
        transparent 100%);
    animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* VALUES SECTION REMOVED - Merged into Why Us section */

/* ═══════════════════════════════════════════════
   WHY US SECTION — Numbered cards (NO side stripes)
   ═══════════════════════════════════════════════ */
.why-us {
    background: var(--color-ceramic);
    padding: var(--space-3xl) var(--space-md);
}

.why-us__container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.why-us__header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.why-us__eyebrow {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-sage-dark);
    margin-bottom: var(--space-sm);
}

.why-us__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.03em;
}

.why-us__lead {
    font-family: var(--font-display);
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    font-weight: 400;
    color: var(--color-slate);
    line-height: 1.5;
}

.why-us__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.why-us__card {
    position: relative;
    background: #fff;
    border: 2px solid var(--color-border);
    border-radius: 2px;
    padding: var(--space-lg);
    transition: border-color 0.3s, box-shadow 0.3s;
}
.why-us__card:hover {
    border-color: var(--color-sage);
    box-shadow: 0 8px 24px rgba(124, 152, 133, 0.12);
}

/* NO side-stripe accent - using numbered badges instead */
.why-us__card-accent {
    display: none;
}

/* Add numbered badges */
.why-us__card::before {
    content: '0' counter(card-num);
    counter-increment: card-num;
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-sage);
    opacity: 0.15;
    line-height: 1;
    transition: color 0.3s, opacity 0.3s;
}

.why-us__card:hover::before {
    color: var(--color-titanium);
    opacity: 1;
}

.why-us__card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg,
        var(--color-titanium) 0%,
        var(--color-sage) 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.why-us__card:hover::after {
    opacity: 1;
}
.why-us__grid {
    counter-reset: card-num;
}

.why-us__card-title {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-graphite);
    margin-bottom: var(--space-sm);
}

.why-us__card-text {
    font-size: 0.9375rem;
    color: var(--color-slate);
    line-height: 1.7;
}

/* ═══════════════════════════════════════════════
   ABOUT SECTION — Asymmetric layout
   ═══════════════════════════════════════════════ */
.about {
    background: var(--color-ceramic);
    padding: var(--space-3xl) var(--space-md);
}

.about__header {
    text-align: center;
    max-width: var(--max-width);
    margin: 0 auto var(--space-2xl);
    padding: 0 var(--space-md);
}

.about__container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 55% 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.about__image-col {
    position: relative;
}

.about__image-wrap {
    position: relative;
    border-radius: 2px;
    overflow: hidden;
    border: 3px solid var(--color-sage);
}
.about__image-wrap::after {
    display: none;
}
.about__image-wrap img {
    border-radius: 0;
    width: 100%;
}

.about__stat {
    position: absolute;
    bottom: var(--space-md);
    right: var(--space-md);
    background: var(--color-sage-dark);
    color: #fff;
    padding: var(--space-md) var(--space-lg);
    border-radius: 2px;
    text-align: center;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.about__stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}

.about__stat-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    opacity: 0.9;
    margin-top: var(--space-3xs);
}

.about__eyebrow {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-sage-dark);
    margin-bottom: var(--space-sm);
}

.about__header .about__title {
    margin-bottom: 0;
}

.about__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
    letter-spacing: -0.03em;
}

.about__body {
    font-size: 0.9375rem;
    line-height: 1.75;
    margin-bottom: var(--space-lg);
    color: var(--color-slate);
}

/* ═══════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════ */
.btn {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 1.1em 2.5em;
    border-radius: 4px;
    transition: all 0.3s;
    cursor: pointer;
}

.btn--outline-light {
    color: #fff;
    border: 2px solid #1e3a54;
    background: #1e3a54;
}
.btn--outline-light:hover {
    border-color: #0f172a;
    background: #0f172a;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 58, 84, 0.4);
}

.btn--primary {
    color: var(--color-graphite);
    background: linear-gradient(135deg,
        var(--color-titanium) 0%,
        var(--color-titanium-light) 100%);
    border: 2px solid var(--color-titanium);
    box-shadow: 0 4px 12px rgba(184, 197, 214, 0.3);
}

.btn--primary:hover {
    background: var(--color-sage);
    color: #fff;
    border-color: var(--color-sage);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(17, 45, 78, 0.4);
}

.btn--dark {
    color: #fff;
    background: var(--color-graphite);
    border: 2px solid var(--color-graphite);
}
.btn--dark:hover {
    background: var(--color-sage-dark);
    border-color: var(--color-sage-dark);
}

.btn--copper {
    color: #fff;
    background: var(--color-sage);
    border: 2px solid var(--color-sage);
}
.btn--copper:hover {
    background: var(--color-sage-dark);
    border-color: var(--color-sage-dark);
}

/* ═══════════════════════════════════════════════
   VIDEO SHOWCASE SECTION — Full-width background video
   ═══════════════════════════════════════════════ */
.video-showcase {
    position: relative;
    width: 100%;
    overflow: hidden;
    background: var(--color-graphite);
    border-radius: 6px;
}

.video-showcase__container {
    position: relative;
    width: 100%;
}

.video-showcase__video {
    display: block;
    width: 100%;
    height: auto;
    max-height: 70vh;
    object-fit: cover;
}

.video-showcase__iframe {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 100vh;
    transform: translate(-50%, -50%);
    pointer-events: none;
    border: 0;
}

/* ═══════════════════════════════════════════════
   GALLERY SECTION — Photo carousel
   ═══════════════════════════════════════════════ */
.gallery {
    padding: var(--space-3xl) 0;
    background: var(--color-lab-white);
}

.gallery .video-showcase {
    margin-bottom: var(--space-2xl);
}

.gallery__container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.gallery__header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.gallery__eyebrow {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-sage-dark);
    margin-bottom: var(--space-sm);
}

.gallery__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--color-graphite);
}

.gallery__carousel {
    position: relative;
    outline: none;
}

.gallery__track {
    display: flex;
    gap: var(--space-sm);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: var(--space-xs) 0;
}

.gallery__track::-webkit-scrollbar {
    display: none;
}

.gallery__slide {
    flex: 0 0 calc(33.333% - var(--space-sm) * 2 / 3);
    scroll-snap-align: start;
    border-radius: 6px;
    overflow: hidden;
}

.gallery__slide img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.gallery__slide:hover img {
    transform: scale(1.03);
}

.gallery__arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-sage);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: background 0.3s, transform 0.3s;
}

.gallery__arrow:hover {
    background: var(--color-sage-dark);
    transform: translateY(-50%) scale(1.05);
}

.gallery__arrow--prev {
    left: var(--space-sm);
}

.gallery__arrow--next {
    right: var(--space-sm);
}

.gallery__dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: var(--space-md);
}

.gallery__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 2px solid var(--color-sage);
    background: transparent;
    cursor: pointer;
    padding: 0;
    transition: background 0.3s, transform 0.3s;
}

.gallery__dot.is-active {
    background: var(--color-sage);
    transform: scale(1.2);
}

.gallery__dot:hover {
    background: var(--color-sage-light);
}

@media (max-width: 960px) {
    .gallery__slide {
        flex: 0 0 calc(50% - var(--space-sm) / 2);
    }

    .gallery__slide img {
        height: 350px;
    }

    .gallery__arrow {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 768px) {
    .gallery__slide {
        flex: 0 0 85%;
    }

    .gallery__slide img {
        height: 300px;
    }

    .gallery__arrow {
        display: none;
    }
}

@media (max-width: 480px) {
    .gallery__slide {
        flex: 0 0 90%;
    }

    .gallery__slide img {
        height: 250px;
    }

    .gallery {
        padding: var(--space-xl) 0;
    }
}

/* ═══════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════ */
.footer {
    background: var(--color-sage);
    color: rgba(255,255,255,0.6);
}

.footer__main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-md) var(--space-xl);
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: var(--space-xl);
}

.footer__brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer__logo img {
    height: 120px;
    width: auto;
}

.footer__tagline {
    font-family: var(--font-display);
    font-size: 0.9375rem;
    font-weight: 400;
    color: rgba(255,255,255,0.5);
}

.footer__social {
    display: flex;
    gap: var(--space-sm);
}
.footer__social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 2px;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.5);
    transition: color 0.3s, border-color 0.3s, background 0.3s;
}
.footer__social a:hover {
    color: var(--color-sage-light);
    border-color: var(--color-sage);
    background: rgba(124, 152, 133, 0.1);
}

.footer__heading {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.85);
    margin-bottom: var(--space-sm);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xs);
}
.footer__links a {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.65);
    transition: color 0.3s;
}
.footer__links a:hover {
    color: var(--color-sage-light);
}

.footer__contact {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xs);
}
.footer__contact p {
    font-size: 0.9rem;
}
.footer__contact a {
    color: rgba(255,255,255,0.65);
    transition: color 0.3s;
}
.footer__contact a:hover {
    color: var(--color-sage-light);
}

.footer__legal-info {
    font-size: 0.8125rem;
    line-height: 1.6;
}
.footer__legal-info p {
    margin-bottom: 2px;
}
.footer__gemi {
    margin-top: var(--space-xs);
    color: rgba(255,255,255,0.35);
    font-size: 0.75rem;
}

.footer__bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8125rem;
    color: rgba(255,255,255,0.35);
}

.footer__bottom-links {
    display: flex;
    gap: var(--space-md);
}
.footer__bottom-links a {
    color: rgba(255,255,255,0.35);
    transition: color 0.3s;
}
.footer__bottom-links a:hover {
    color: var(--color-sage-light);
}

/* ═══════════════════════════════════════════════
   FOOTER MODAL
   ═══════════════════════════════════════════════ */
.footer-modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s, visibility 0.3s;
}
.footer-modal.is-open {
    pointer-events: auto;
    visibility: visible;
    opacity: 1;
}

.footer-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(26, 29, 35, 0.75);
}

.footer-modal__content {
    position: relative;
    background: #fff;
    border-radius: 2px;
    max-width: 560px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    padding: var(--space-xl);
    box-shadow: 0 24px 64px rgba(0,0,0,0.2);
}

.footer-modal__close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    font-size: 1.75rem;
    color: var(--color-stone);
    line-height: 1;
    transition: color 0.3s;
}
.footer-modal__close:hover {
    color: var(--color-graphite);
}

.footer-modal__title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--color-graphite);
}

.footer-modal__body h3 {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--color-graphite);
    margin: var(--space-md) 0 var(--space-xs);
}
.footer-modal__body h3:first-child {
    margin-top: 0;
}
.footer-modal__body p {
    font-size: 0.9rem;
    color: var(--color-slate);
    margin-bottom: var(--space-sm);
    line-height: 1.7;
}
.footer-modal__body a {
    color: var(--color-sage-dark);
    transition: color 0.3s;
}
.footer-modal__body a:hover {
    color: var(--color-sage);
}

/* ═══════════════════════════════════════════════
   SCROLL REVEAL
   ═══════════════════════════════════════════════ */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ═══════════════════════════════════════════════
   RESPONSIVE — Tablet (max 960px)
   ═══════════════════════════════════════════════ */
@media (max-width: 960px) {
    .header-logo {
        margin-right: auto;
    }

    .header-logo img {
        height: 40px;
    }

    .header-nav {
        display: none;
    }
    .header-burger {
        display: flex;
    }

    .values__container {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .why-us__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .about__container {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .footer__main {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-lg);
    }
}

/* ═══════════════════════════════════════════════
   RESPONSIVE — Mobile (max 768px)
   ═══════════════════════════════════════════════ */
@media (max-width: 768px) {
    .header-logo img {
        height: 36px;
    }

    .hero__content {
        padding: var(--space-2xl) var(--space-md);
    }

    .hero__title {
        font-size: clamp(2.5rem, 10vw, 3.5rem);
    }

    .why-us__grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .about__image-wrap {
        border-width: 2px;
    }

    .about__stat {
        right: var(--space-sm);
        bottom: var(--space-sm);
        padding: var(--space-sm) var(--space-md);
    }

    .footer__main {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        padding: var(--space-xl) var(--space-md);
    }

    .footer__bottom {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }

    .footer-modal__content {
        padding: var(--space-lg);
    }
}

/* ═══════════════════════════════════════════════
   RESPONSIVE — Small Mobile (max 480px)
   ═══════════════════════════════════════════════ */
@media (max-width: 480px) {
    .hero__eyebrow {
        font-size: 0.625rem;
    }

    .footer__bottom-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-xs) var(--space-md);
    }
}

/* ═══════════════════════════════════════════════
   ΑΜΕΑ ACCESSIBILITY WIDGET (COLLAPSIBLE)
   ═══════════════════════════════════════════════ */
.accessibility-widget {
    position: fixed;
    bottom: 20px;
    right: 0;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}

/* Trigger Button (always visible) */
.acc-trigger {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-sage);
    border: none;
    border-radius: 8px 0 0 8px;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: -2px 2px 8px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.acc-trigger:hover {
    background: var(--color-sage-dark);
    transform: translateX(-4px);
}

.acc-trigger:focus {
    outline: 3px solid #fff;
    outline-offset: 2px;
}

.acc-trigger[aria-expanded="true"] {
    background: var(--color-graphite);
    border-radius: 8px 0 0 0;
}

/* Controls Panel (hidden by default) */
.acc-controls-panel {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px 8px;
    background: var(--color-graphite);
    border-radius: 8px 0 0 8px;
    box-shadow: -2px 0 12px rgba(0, 0, 0, 0.2);
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    pointer-events: none;
}

.acc-controls-panel[aria-hidden="false"] {
    max-height: 300px;
    opacity: 1;
    pointer-events: auto;
}

/* Individual Control Buttons */
.acc-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    color: #fff;
    font-size: 1.25rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}

.acc-btn:hover {
    background: var(--color-sage);
    border-color: var(--color-sage);
    transform: scale(1.05);
}

.acc-btn:focus {
    outline: 3px solid #fff;
    outline-offset: 2px;
}

.acc-btn:active {
    transform: scale(0.95);
}

.acc-icon {
    pointer-events: none;
}

/* High contrast mode */
body.high-contrast .accessibility-widget {
    border: 3px solid #fff;
}

body.high-contrast .acc-trigger {
    background: #000;
    border: 2px solid #fff;
    color: #fff;
}

body.high-contrast .acc-controls-panel {
    background: #000;
    border: 3px solid #fff;
}

body.high-contrast .acc-btn {
    background: #000;
    border: 2px solid #fff;
    color: #fff;
}

body.high-contrast #acc-contrast {
    background: #fff;
    color: #000;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .acc-trigger,
    .acc-btn {
        width: 42px;
        height: 42px;
        font-size: 1.125rem;
    }

    .acc-trigger {
        font-size: 1.25rem;
    }

    .acc-controls-panel {
        padding: 8px 6px;
    }
}

/* High Contrast Mode Styles */
body.high-contrast {
    background: #000 !important;
    color: #fff !important;
}

body.high-contrast .site-header {
    background: #000 !important;
    border-bottom-color: #fff !important;
}

body.high-contrast .hero__overlay {
    background: rgba(0, 0, 0, 0.9) !important;
}

body.high-contrast .hero__title,
body.high-contrast .hero__subtitle,
body.high-contrast .hero__eyebrow {
    color: #fff !important;
}

body.high-contrast .values,
body.high-contrast .about,
body.high-contrast .why-us,
body.high-contrast .footer {
    background: #000 !important;
}

body.high-contrast .values__item,
body.high-contrast .why-us__card {
    background: #000 !important;
    border-color: #fff !important;
    color: #fff !important;
}

body.high-contrast .values__heading,
body.high-contrast .values__text,
body.high-contrast .why-us__card-title,
body.high-contrast .why-us__card-text,
body.high-contrast .why-us__title,
body.high-contrast .why-us__lead,
body.high-contrast .about__title,
body.high-contrast .about__body,
body.high-contrast h1, body.high-contrast h2,
body.high-contrast h3, body.high-contrast p {
    color: #fff !important;
}

body.high-contrast .btn {
    background: #fff !important;
    color: #000 !important;
    border-color: #fff !important;
}

body.high-contrast .footer-modal__content {
    background: #000 !important;
    border: 3px solid #fff !important;
}

body.high-contrast .footer-modal__title,
body.high-contrast .footer-modal__body h3,
body.high-contrast .footer-modal__body p {
    color: #fff !important;
}

/* ═══════════════════════════════════════════════
   REDUCED MOTION
   ═══════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* ═══════════════════════════════════════════════
   HIGH CONTRAST MODE
   ═══════════════════════════════════════════════ */
@media (forced-colors: active) {
    *:focus {
        outline: 3px solid CanvasText;
        outline-offset: 3px;
    }

    .values__item, .why-us__card, .footer-modal__content {
        border: 2px solid CanvasText;
    }

    .btn {
        border: 2px solid ButtonText;
        background: ButtonFace;
        color: ButtonText;
    }
}

@media (prefers-contrast: high) {
    :root {
        --color-slate: #334155;
        --color-stone: #64748b;
    }

    *:focus {
        outline-width: 4px;
        outline-offset: 3px;
    }

    .values__item, .why-us__card {
        border-width: 3px;
    }
}