/* =========================================================================
   ITU Autobee — modern dark redesign
   Palette: deep navy base · cyan/teal accent · status green
   Type: Space Grotesk (display) + DM Sans (body)
   ========================================================================= */

:root {
    --bg:            #0A0F1C;
    --bg-elev:       #0F172A;
    --card:          #111A2E;
    --card-hover:    #16223C;
    --border:        #1E2A44;
    --border-bright: #2B3B5E;

    --fg:            #F1F5F9;
    --fg-muted:      #94A3B8;
    --fg-dim:        #64748B;

    --primary:       #FACC15;   /* honey yellow — Autobee */
    --primary-deep:  #EAB308;
    --accent:        #FBBF24;   /* amber/gold — gradient end */
    --accent-amber:  #FBBF24;
    --on-primary:    #14130A;   /* near-black for text on yellow */
    --live:          #34D399;   /* semantic "active/live" green */

    --domain-sea:    #38BDF8;
    --domain-land:   #34D399;
    --domain-air:    #A78BFA;

    --ring:          rgba(250, 204, 21, 0.40);
    --shadow:        0 18px 50px -20px rgba(0, 0, 0, 0.7);

    --font-display:  'Space Grotesk', system-ui, sans-serif;
    --font-body:     'DM Sans', system-ui, sans-serif;

    --maxw:          1160px;
    --radius:        16px;
    --radius-sm:     10px;
    --ease:          cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--fg);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Ambient background glow */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    background:
        radial-gradient(60rem 40rem at 75% -10%, rgba(34, 211, 238, 0.10), transparent 60%),
        radial-gradient(50rem 35rem at 5% 10%, rgba(52, 211, 153, 0.07), transparent 55%);
    pointer-events: none;
}

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.12; letter-spacing: -0.02em; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 1.5rem; }

.skip-link {
    position: absolute; left: -999px; top: 0; z-index: 100;
    background: var(--primary); color: var(--on-primary); padding: .6rem 1rem; border-radius: 0 0 8px 0; font-weight: 600;
}
.skip-link:focus { left: 0; }

/* Scroll progress bar */
.scroll-progress { position: fixed; inset: 0 0 auto 0; height: 3px; z-index: 60; transform: scaleX(0); transform-origin: left; background: linear-gradient(90deg, var(--primary), var(--accent)); will-change: transform; }

/* ---------- Header ---------- */
.site-header {
    position: sticky; top: 0; z-index: 50;
    backdrop-filter: blur(14px);
    background: rgba(10, 15, 28, 0.72);
    border-bottom: 1px solid transparent;
    transition: border-color .3s, background .3s;
}
.site-header.scrolled { border-bottom-color: var(--border); background: rgba(10, 15, 28, 0.92); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 1rem; }

.brand { display: inline-flex; align-items: center; gap: .6rem; font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; }
.brand-mark { width: 38px; height: 32px; color: var(--fg); display: grid; place-items: center; }
.brand-mark svg { width: 100%; height: 100%; }
.brand-accent { color: var(--primary); }

.main-nav { display: flex; align-items: center; }
.nav-list { display: flex; align-items: center; gap: .35rem; }
.nav-link {
    position: relative; padding: .5rem .8rem; border-radius: 8px;
    color: var(--fg-muted); font-size: .95rem; font-weight: 500; transition: color .2s, background .2s;
}
.nav-link:hover { color: var(--fg); background: rgba(255,255,255,0.04); }
.nav-link.active { color: var(--fg); }
.nav-link.active::after {
    content: ""; position: absolute; left: .8rem; right: .8rem; bottom: .2rem; height: 2px;
    background: var(--primary); border-radius: 2px;
}
.nav-cta {
    margin-left: .6rem; padding: .55rem 1.1rem; border-radius: 999px; font-weight: 600; font-size: .92rem;
    color: var(--on-primary); background: linear-gradient(135deg, var(--primary), var(--accent));
    transition: transform .2s var(--ease), box-shadow .2s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 24px -8px var(--ring); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 40px; height: 40px; background: none; border: 0; cursor: pointer; padding: 9px; }
.nav-toggle span { height: 2px; width: 100%; background: var(--fg); border-radius: 2px; transition: transform .3s, opacity .3s; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: .5rem; font-family: var(--font-display); font-weight: 600; font-size: .98rem; padding: .8rem 1.5rem; border-radius: 999px; border: 1px solid transparent; cursor: pointer; transition: transform .2s var(--ease), box-shadow .2s, background .2s, border-color .2s; }
.btn-primary { color: var(--on-primary); background: linear-gradient(135deg, var(--primary), var(--accent)); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 34px -12px var(--ring); }
.btn-ghost { color: var(--fg); border-color: var(--border-bright); background: rgba(255,255,255,0.02); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn svg { width: 18px; height: 18px; }

/* ---------- Sections ---------- */
section { padding-block: clamp(4rem, 8vw, 7rem); }
.section-head { max-width: 640px; margin-bottom: 3rem; }
.section-head.center { margin-inline: auto; text-align: center; }
.eyebrow {
    display: inline-flex; align-items: center; gap: .5rem; font-family: var(--font-display);
    font-size: .8rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
    color: var(--primary); margin-bottom: 1rem;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--primary); border-radius: 2px; }
.section-head.center .eyebrow { justify-content: center; }
.section-title { font-size: clamp(1.9rem, 4vw, 2.8rem); }
.section-sub { color: var(--fg-muted); margin-top: 1rem; font-size: 1.08rem; }

/* ---------- Hero ---------- */
.hero { position: relative; padding-block: clamp(5rem, 11vw, 9rem); overflow: hidden; }
.hero-grid {
    position: absolute; inset: 0; z-index: -1;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(circle at 70% 30%, #000 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(circle at 70% 30%, #000 0%, transparent 70%);
    opacity: .5;
    animation: grid-pan 24s linear infinite;
}
@keyframes grid-pan { to { background-position: 56px 56px; } }

.hero-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: center; }
.hero-badge {
    display: inline-flex; align-items: center; gap: .55rem; padding: .4rem .9rem; border-radius: 999px;
    background: rgba(34, 211, 238, 0.08); border: 1px solid var(--border-bright);
    font-size: .85rem; color: var(--fg-muted); margin-bottom: 1.5rem;
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--live); box-shadow: 0 0 0 0 rgba(52,211,153,.6); animation: pulse 2.4s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 8px rgba(52,211,153,0); } 100% { box-shadow: 0 0 0 0 rgba(52,211,153,0); } }

.hero h1 { font-size: clamp(2.5rem, 6vw, 4.3rem); font-weight: 700; }
.hero h1 .grad { background: linear-gradient(120deg, var(--primary), var(--accent) 70%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-lede { color: var(--fg-muted); font-size: 1.18rem; margin-top: 1.5rem; max-width: 34rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.2rem; }

/* Hero visual — autonomous "radar" card */
.hero-visual { position: relative; }
.radar {
    position: relative; aspect-ratio: 1; border-radius: 50%;
    background: radial-gradient(circle, rgba(34,211,238,.06), transparent 70%);
    border: 1px solid var(--border); display: grid; place-items: center;
}
.radar::before, .radar::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid var(--border); }
.radar::before { inset: 16%; }
.radar::after  { inset: 33%; }
.radar-sweep {
    position: absolute; inset: 0; border-radius: 50%;
    background: conic-gradient(from 0deg, transparent 0deg, rgba(34,211,238,.35) 40deg, transparent 80deg);
    animation: sweep 4s linear infinite;
}
@keyframes sweep { to { transform: rotate(360deg); } }
.radar-core { position: relative; z-index: 1; width: 56px; height: 56px; color: var(--primary); }
.radar-blip { position: absolute; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.radar-blip.b1 { top: 22%; left: 64%; } .radar-blip.b2 { top: 60%; left: 30%; animation: blink 3s infinite; } .radar-blip.b3 { top: 70%; left: 70%; }
@keyframes blink { 50% { opacity: .2; } }

/* ---------- Stats ---------- */
.stats { border-block: 1px solid var(--border); background: var(--bg-elev); padding-block: 3.5rem; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.stat { text-align: center; }
.stat .num { font-family: var(--font-display); font-size: clamp(2.2rem, 5vw, 3.2rem); font-weight: 700; color: var(--fg); }
.stat .num .suffix { color: var(--primary); }
.stat .label { color: var(--fg-muted); font-size: .95rem; letter-spacing: .05em; text-transform: uppercase; }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 1.4rem; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
    background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1.6rem; transition: transform .3s var(--ease), border-color .3s, background .3s;
    position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-bright); background: var(--card-hover); }

.project-card .proj-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.1rem; }
.proj-icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: rgba(255,255,255,0.03); border: 1px solid var(--border); }
.proj-icon svg { width: 24px; height: 24px; }
.project-card h3 { font-size: 1.25rem; margin-bottom: .5rem; }
.project-card p { color: var(--fg-muted); font-size: .95rem; }
.proj-meta { display: flex; gap: .6rem; align-items: center; margin-top: 1.2rem; font-size: .82rem; color: var(--fg-dim); }
.proj-meta .year { font-family: var(--font-display); }

.badge { display: inline-flex; align-items: center; gap: .35rem; font-size: .76rem; font-weight: 600; padding: .25rem .65rem; border-radius: 999px; border: 1px solid var(--border-bright); color: var(--fg-muted); }
.badge.status-active { color: var(--live); border-color: rgba(52,211,153,.4); background: rgba(52,211,153,.07); }
.badge.status-awardwinner, .badge.status-award { color: var(--primary); border-color: rgba(250,204,21,.45); background: rgba(250,204,21,.08); }
.badge.status-research, .badge.status-prototype { color: var(--accent-amber); border-color: rgba(251,191,36,.35); background: rgba(251,191,36,.06); }

.domain-sea  { color: var(--domain-sea); }
.domain-land { color: var(--domain-land); }
.domain-air  { color: var(--domain-air); }

/* Filter bar */
.filterbar { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2rem; }
.filter-btn { font-family: var(--font-display); font-weight: 500; font-size: .9rem; padding: .5rem 1.1rem; border-radius: 999px; border: 1px solid var(--border); background: var(--card); color: var(--fg-muted); cursor: pointer; transition: all .2s; }
.filter-btn:hover { border-color: var(--border-bright); color: var(--fg); }
.filter-btn.active { background: linear-gradient(135deg, var(--primary), var(--accent)); color: var(--on-primary); border-color: transparent; }

/* ---------- Timeline ---------- */
.timeline { position: relative; max-width: 760px; margin-inline: auto; padding-left: 2.4rem; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--primary), var(--border)); }
.tl-item { position: relative; padding-bottom: 2.6rem; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before { content: ""; position: absolute; left: calc(-2.4rem + 1px); top: 4px; width: 16px; height: 16px; border-radius: 50%; background: var(--bg); border: 3px solid var(--primary); box-shadow: 0 0 0 4px rgba(34,211,238,.12); }
.tl-year { font-family: var(--font-display); font-weight: 700; color: var(--primary); font-size: 1.05rem; }
.tl-item h3 { font-size: 1.2rem; margin: .25rem 0 .5rem; }
.tl-item p { color: var(--fg-muted); }

/* ---------- Team ---------- */
.member { text-align: center; }
.member .avatar { width: 84px; height: 84px; margin: 0 auto 1rem; border-radius: 50%; display: grid; place-items: center; font-family: var(--font-display); font-weight: 700; font-size: 1.6rem; color: var(--on-primary); background: linear-gradient(135deg, var(--primary), var(--accent)); }
.member h3 { font-size: 1.12rem; }
.member .role { color: var(--primary); font-weight: 600; font-size: .9rem; margin-top: .2rem; }
.member .field { color: var(--fg-dim); font-size: .85rem; margin-top: .35rem; }

/* ---------- Partners ---------- */
.logo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 1rem; }
.logo-chip { display: grid; place-items: center; text-align: center; padding: 1.4rem 1rem; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--card); font-family: var(--font-display); font-weight: 500; color: var(--fg-muted); transition: all .25s; }
.logo-chip:hover { color: var(--fg); border-color: var(--primary); transform: translateY(-3px); }
.logo-chip.past { opacity: .65; }

/* ---------- Contact form ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.info-list { display: grid; gap: 1.2rem; margin-top: 1.5rem; }
.info-item { display: flex; gap: 1rem; align-items: flex-start; }
.info-item .ic { width: 42px; height: 42px; flex: none; border-radius: 12px; display: grid; place-items: center; color: var(--primary); background: rgba(34,211,238,.07); border: 1px solid var(--border); }
.info-item .ic svg { width: 20px; height: 20px; }
.info-item h4 { font-size: .9rem; color: var(--fg-dim); font-weight: 500; }
.info-item a, .info-item p { color: var(--fg); font-size: 1.02rem; }
.info-item a:hover { color: var(--primary); }

.form-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; }
.field { margin-bottom: 1.2rem; }
.field label { display: block; font-size: .88rem; font-weight: 500; margin-bottom: .45rem; color: var(--fg-muted); }
.field input, .field textarea {
    width: 100%; padding: .8rem 1rem; border-radius: var(--radius-sm); border: 1px solid var(--border);
    background: var(--bg-elev); color: var(--fg); font: inherit; transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--ring); }
.field textarea { resize: vertical; min-height: 130px; }
.field.error input, .field.error textarea { border-color: #F87171; }
.field .err-msg { color: #F87171; font-size: .8rem; margin-top: .35rem; display: none; }
.field.error .err-msg { display: block; }

.alert { padding: .9rem 1.1rem; border-radius: var(--radius-sm); margin-bottom: 1.4rem; font-size: .95rem; }
.alert-success { background: rgba(52,211,153,.1); border: 1px solid rgba(52,211,153,.4); color: var(--accent); }
.alert-error { background: rgba(248,113,113,.1); border: 1px solid rgba(248,113,113,.4); color: #FCA5A5; }

/* ---------- CTA band ---------- */
.cta-band { position: relative; overflow: hidden; border-radius: var(--radius); padding: clamp(2.5rem, 6vw, 4rem); text-align: center; background: linear-gradient(135deg, rgba(34,211,238,.12), rgba(52,211,153,.08)); border: 1px solid var(--border-bright); }
.cta-band h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.cta-band p { color: var(--fg-muted); margin: 1rem auto 2rem; max-width: 40rem; }

/* ---------- Page hero (sub pages) ---------- */
.page-hero { padding-block: clamp(3.5rem, 7vw, 5.5rem) 1rem; }
.page-hero .breadcrumb { color: var(--fg-dim); font-size: .88rem; margin-bottom: 1rem; }
.page-hero .breadcrumb a:hover { color: var(--primary); }
.page-hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
.page-hero p { color: var(--fg-muted); font-size: 1.12rem; margin-top: 1rem; max-width: 44rem; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-elev); padding-block: 3.5rem 2rem; margin-top: 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1.3fr; gap: 2.5rem; }
.footer-tag { color: var(--fg-muted); margin: 1rem 0 1.2rem; max-width: 22rem; }
.social-list { display: flex; gap: 1rem; }
.social-list a { color: var(--fg-muted); font-size: .9rem; font-weight: 500; }
.social-list a:hover { color: var(--primary); }
.footer-col h3 { font-size: .85rem; text-transform: uppercase; letter-spacing: .12em; color: var(--fg-dim); margin-bottom: 1rem; }
.footer-col ul { display: grid; gap: .6rem; }
.footer-col a { color: var(--fg-muted); font-size: .95rem; }
.footer-col a:hover { color: var(--fg); }
.footer-contact li { color: var(--fg-muted); font-size: .95rem; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); color: var(--fg-dim); font-size: .85rem; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Card media (real photos) ---------- */
.project-card { padding: 0; }
.card-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-elev); }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.project-card:hover .card-media img { transform: scale(1.06); }
.card-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(17, 26, 46, .9), transparent 55%); pointer-events: none; }
.card-media--fallback { display: grid; place-items: center; }
.card-media--fallback::after { display: none; }
.card-media--fallback svg { width: 60px; height: 60px; opacity: .45; }
.card-badge { position: absolute; top: .8rem; left: .8rem; z-index: 1; }
.card-badge .badge { background: rgba(10, 15, 28, .6); backdrop-filter: blur(6px); }
.card-body { padding: 1.5rem; }
.project-card .proj-top { display: flex; align-items: center; gap: .7rem; margin-bottom: .7rem; }
.project-card .proj-icon { width: 38px; height: 38px; border-radius: 10px; }
.project-card .proj-icon svg { width: 20px; height: 20px; }
.project-card h3 { font-size: 1.18rem; margin-bottom: 0; }
.project-card .proj-meta { margin-top: 1rem; }

/* ---------- Hero photo ---------- */
.hero-photo { position: relative; margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border-bright); box-shadow: var(--shadow); aspect-ratio: 4 / 3; }
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.hero-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(140deg, transparent 45%, rgba(34, 211, 238, .14)); pointer-events: none; }
.hero-scan { position: absolute; left: 0; right: 0; top: 0; height: 2px; background: linear-gradient(90deg, transparent, var(--primary), transparent); box-shadow: 0 0 14px var(--primary); animation: scan 4s var(--ease) infinite; }
@keyframes scan { 0% { top: 0; opacity: 0; } 12% { opacity: 1; } 88% { opacity: 1; } 100% { top: 100%; opacity: 0; } }
.hero-chip { position: absolute; left: 1rem; bottom: 1rem; display: inline-flex; align-items: center; gap: .5rem; margin: 0; padding: .45rem .9rem; border-radius: 999px; background: rgba(10, 15, 28, .72); backdrop-filter: blur(8px); border: 1px solid var(--border-bright); font-family: var(--font-display); font-size: .82rem; color: var(--fg); }
.hero-chip .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--live); box-shadow: 0 0 8px var(--live); }
.hero-stat-chip { position: absolute; top: -1rem; right: -1rem; padding: .8rem 1.1rem; border-radius: 14px; background: var(--card); border: 1px solid var(--border-bright); box-shadow: var(--shadow); text-align: center; }
.hero-stat-chip strong { display: block; font-family: var(--font-display); font-size: 1.9rem; line-height: 1; color: var(--fg); }
.hero-stat-chip .suffix { color: var(--primary); font-size: 1rem; }
.hero-stat-chip span { font-size: .72rem; color: var(--fg-muted); text-transform: uppercase; letter-spacing: .08em; }

/* ---------- Partner logos on white plates ---------- */
.logo-chip.has-logo { background: #fff; border-color: rgba(255, 255, 255, .15); padding: 1.1rem 1.2rem; min-height: 86px; }
.logo-chip.has-logo img { max-height: 48px; max-width: 100%; width: auto; object-fit: contain; }
.logo-chip.past.has-logo { opacity: .6; filter: grayscale(.3); }
.logo-chip.has-logo:hover { opacity: 1; filter: none; transform: translateY(-3px); border-color: var(--primary); }

/* ---------- Photo avatars ---------- */
.avatar.avatar-photo { padding: 0; overflow: hidden; background: none; }
.avatar.avatar-photo img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .hero-inner { grid-template-columns: 1fr; }
    .hero-visual { max-width: 380px; margin-inline: auto; order: -1; }
    .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
    .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
    .nav-toggle { display: flex; }
    .nav-list {
        position: fixed; inset: 72px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
        background: var(--bg-elev); border-bottom: 1px solid var(--border); padding: 1rem 1.5rem 1.5rem;
        transform: translateY(-120%); transition: transform .35s var(--ease); box-shadow: var(--shadow);
    }
    .nav-list.open { transform: none; }
    .nav-link { padding: .85rem .5rem; border-radius: 8px; }
    .nav-link.active::after { display: none; }
    .nav-cta { margin: .6rem 0 0; text-align: center; }
    .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
    .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}
@media (max-width: 600px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem 1rem; }
    .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: .5rem; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
    html { scroll-behavior: auto; }
}