/* =====================================================
   SAI INFOTECH — Custom Stylesheet
   Unique dark-neon + glassmorphism theme
   ===================================================== */

:root {
    --bg-0: #070b18;
    --bg-1: #0c1224;
    --bg-2: #131a30;
    --surface: rgba(255, 255, 255, 0.04);
    --surface-strong: rgba(255, 255, 255, 0.07);
    --border: rgba(255, 255, 255, 0.09);
    --border-strong: rgba(255, 255, 255, 0.18);

    --text: #e9ecf5;
    --text-dim: #a9b0c7;
    --text-mute: #7a81a0;

    --accent: #00e0c7;      /* neon teal */
    --accent-2: #7c5cff;    /* electric violet */
    --accent-3: #ff4b8b;    /* hot pink */
    --warn: #ffb547;
    --danger: #ff5b5b;

    --radius-sm: 10px;
    --radius: 18px;
    --radius-lg: 28px;

    --shadow-glow: 0 0 40px rgba(0, 224, 199, 0.25);
    --shadow-soft: 0 20px 60px rgba(0, 0, 0, 0.45);

    --ff-head: 'Space Grotesk', system-ui, sans-serif;
    --ff-body: 'Inter', system-ui, sans-serif;

    --container: 1240px;
    --header-h: 74px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--ff-body);
    background: var(--bg-0);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

h1, h2, h3, h4, h5 {
    font-family: var(--ff-head);
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.2;
    color: var(--text);
}

a { color: inherit; text-decoration: none; transition: color .25s ease; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }

/* ---------- Animated background ---------- */
.bg-layer {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    background:
        radial-gradient(1200px 600px at 10% -10%, #112248 0%, transparent 60%),
        radial-gradient(900px 500px at 110% 10%, #1b0f3a 0%, transparent 60%),
        linear-gradient(180deg, var(--bg-0), var(--bg-1));
}
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.55;
    animation: float 18s ease-in-out infinite;
}
.orb-1 { width: 520px; height: 520px; background: #00e0c7; top: -150px; left: -120px; }
.orb-2 { width: 460px; height: 460px; background: #7c5cff; top: 30%; right: -140px; animation-delay: -6s; }
.orb-3 { width: 380px; height: 380px; background: #ff4b8b; bottom: -160px; left: 30%; animation-delay: -12s; opacity: 0.35; }

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(40px, -30px) scale(1.08); }
}

.grid-lines {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}

/* ---------- Ticker ---------- */
.ticker {
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    color: #0b0f1f;
    font-weight: 600;
    font-size: 0.82rem;
    padding: 8px 0;
    overflow: hidden;
    position: relative;
    z-index: 10;
}
.ticker-track {
    display: flex;
    gap: 48px;
    white-space: nowrap;
    animation: ticker-scroll 35s linear infinite;
    padding-left: 48px;
}
.ticker-track span { display: inline-flex; align-items: center; gap: 10px; }
.ticker-track i { font-size: 0.9rem; }
@keyframes ticker-scroll {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

/* ---------- Header / Navbar ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(18px) saturate(160%);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    background: rgba(10, 14, 28, 0.65);
    border-bottom: 1px solid var(--border);
}
.nav-container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 28px;
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.brand {
    display: flex; align-items: center; gap: 12px;
    font-family: var(--ff-head);
}
.brand-mark {
    width: 40px; height: 40px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: 12px;
    display: grid; place-items: center;
    color: #06101f; font-size: 1.1rem;
    box-shadow: var(--shadow-glow);
    transition: transform .4s ease;
}
.brand:hover .brand-mark { transform: rotate(-8deg) scale(1.06); }
.brand-text { font-size: 1.15rem; letter-spacing: 0.02em; }
.brand-text strong { color: var(--text); font-weight: 700; }
.brand-text span { color: var(--accent); margin-left: 4px; font-weight: 500; }

.nav-menu {
    display: flex; align-items: center; gap: 8px;
}
.nav-menu a {
    position: relative;
    padding: 10px 16px;
    font-size: 0.94rem;
    color: var(--text-dim);
    border-radius: 10px;
    transition: all .25s ease;
}
.nav-menu a:hover { color: var(--text); background: var(--surface); }
.nav-menu a.active {
    color: var(--text);
    background: var(--surface-strong);
}
.nav-menu a.active::after {
    content: '';
    position: absolute;
    left: 50%; bottom: 2px;
    transform: translateX(-50%);
    width: 22px; height: 2px;
    background: var(--accent);
    border-radius: 2px;
}
.nav-cta {
    background: linear-gradient(135deg, var(--accent), var(--accent-2)) !important;
    color: #06101f !important;
    font-weight: 600;
    padding: 11px 20px !important;
    border-radius: 999px !important;
    box-shadow: 0 8px 24px rgba(0, 224, 199, 0.28);
}
.nav-cta:hover { transform: translateY(-2px); }
.nav-cta i { margin-left: 6px; font-size: 0.8rem; }

.nav-toggle {
    display: none;
    width: 42px; height: 42px;
    border-radius: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
}
.nav-toggle span {
    width: 20px; height: 2px;
    background: var(--text);
    transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Utility ---------- */
.page-wrap { min-height: calc(100vh - var(--header-h)); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 28px; }
.section { padding: 110px 0; position: relative; }
.section-sm { padding: 70px 0; }

.eyebrow {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: var(--ff-head);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    padding: 7px 14px;
    border: 1px solid rgba(0, 224, 199, 0.3);
    border-radius: 999px;
    background: rgba(0, 224, 199, 0.06);
}
.eyebrow::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.9rem);
    margin: 18px 0 14px;
    font-weight: 700;
}
.section-title .accent {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.section-sub {
    color: var(--text-dim);
    font-size: 1.05rem;
    max-width: 620px;
}

.section-head {
    text-align: center;
    margin-bottom: 70px;
}
.section-head .section-sub { margin: 0 auto; }

.btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 26px;
    border-radius: 999px;
    font-family: var(--ff-head);
    font-weight: 600;
    font-size: 0.96rem;
    transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
    cursor: pointer;
    border: 1px solid transparent;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #06101f;
    box-shadow: 0 10px 30px rgba(0, 224, 199, 0.3);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 36px rgba(0, 224, 199, 0.45); }
.btn-ghost {
    background: var(--surface);
    color: var(--text);
    border-color: var(--border-strong);
}
.btn-ghost:hover { background: var(--surface-strong); transform: translateY(-3px); }

/* ---------- HERO ---------- */
.hero {
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
}
.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 70px;
    align-items: center;
}
.hero h1 {
    font-size: clamp(2.5rem, 5.5vw, 4.4rem);
    line-height: 1.05;
    font-weight: 700;
    margin: 22px 0 22px;
}
.hero h1 .word {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent), var(--accent-2) 60%, var(--accent-3));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero p.lead {
    font-size: 1.15rem;
    color: var(--text-dim);
    max-width: 560px;
    margin-bottom: 36px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 50px; }

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}
.stat .num {
    font-family: var(--ff-head);
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
}
.stat .label { font-size: 0.86rem; color: var(--text-mute); margin-top: 6px; }

/* Hero visual — device mockup */
.hero-visual {
    position: relative;
    height: 560px;
}
.hv-card {
    position: absolute;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--border-strong);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-soft);
    transition: transform .5s ease;
}
.hv-main {
    inset: 0 0 40px 40px;
    animation: floaty 6s ease-in-out infinite;
}
.hv-main img { width: 100%; height: 100%; object-fit: cover; }
.hv-chip {
    position: absolute;
    padding: 14px 16px;
    background: rgba(15, 22, 42, 0.88);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    display: flex; align-items: center; gap: 12px;
    font-size: 0.88rem;
    box-shadow: var(--shadow-soft);
    animation: floaty 7s ease-in-out infinite;
}
.hv-chip .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.hv-chip-1 { top: 30px; left: -10px; animation-delay: -2s; }
.hv-chip-2 { bottom: 50px; right: -20px; animation-delay: -4s; }
.hv-chip-3 { top: 50%; right: -30px; animation-delay: -3s; }
.hv-chip strong { font-family: var(--ff-head); color: var(--text); }
.hv-chip span.s { color: var(--text-mute); font-size: 0.78rem; display: block; }

@keyframes floaty {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-14px); }
}

/* Marquee brand bar */
.brand-bar {
    padding: 28px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
    background: rgba(255,255,255,0.02);
}
.brand-bar-track {
    display: flex;
    gap: 80px;
    animation: ticker-scroll 30s linear infinite;
    white-space: nowrap;
}
.brand-bar span {
    font-family: var(--ff-head);
    font-weight: 500;
    color: var(--text-mute);
    font-size: 1.05rem;
    letter-spacing: 0.06em;
    display: inline-flex;
    align-items: center;
    gap: 14px;
}
.brand-bar span::after {
    content: '✦';
    color: var(--accent);
}

/* ---------- Services ---------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
}
.service-card {
    position: relative;
    padding: 36px 28px;
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--border);
    transition: transform .4s ease, border-color .4s ease, background .4s ease;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 50%), rgba(0, 224, 199, 0.12), transparent 40%);
    opacity: 0;
    transition: opacity .35s ease;
    pointer-events: none;
}
.service-card:hover { transform: translateY(-8px); border-color: var(--border-strong); background: var(--surface-strong); }
.service-card:hover::before { opacity: 1; }
.service-icon {
    width: 56px; height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(0, 224, 199, 0.2), rgba(124, 92, 255, 0.25));
    border: 1px solid rgba(0, 224, 199, 0.35);
    display: grid; place-items: center;
    font-size: 1.3rem;
    color: var(--accent);
    margin-bottom: 22px;
}
.service-card h3 { font-size: 1.22rem; margin-bottom: 10px; }
.service-card p { color: var(--text-dim); font-size: 0.95rem; }

/* ---------- Product highlights (home) ---------- */
.prod-slab {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}
.prod-slab-card {
    position: relative;
    aspect-ratio: 3 / 4;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    isolation: isolate;
}
.prod-slab-card img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform .6s ease;
}
.prod-slab-card:hover img { transform: scale(1.08); }
.prod-slab-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(6, 10, 22, 0.95));
}
.prod-slab-meta {
    position: absolute;
    bottom: 22px; left: 22px; right: 22px;
    z-index: 2;
    color: #fff;
}
.prod-slab-meta .tag {
    display: inline-block;
    padding: 5px 11px;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    background: var(--surface-strong);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    margin-bottom: 10px;
    font-family: var(--ff-head);
}
.prod-slab-meta h4 { font-size: 1.1rem; font-weight: 600; }
.prod-slab-meta .arrow {
    position: absolute;
    top: -10px; right: 0;
    width: 44px; height: 44px;
    border-radius: 50%;
    background: var(--accent);
    color: #06101f;
    display: grid; place-items: center;
    transform: scale(0) rotate(-45deg);
    transition: transform .4s ease;
}
.prod-slab-card:hover .prod-slab-meta .arrow { transform: scale(1) rotate(0); }

/* ---------- CTA band ---------- */
.cta-band {
    margin: 60px auto;
    max-width: var(--container);
    border-radius: var(--radius-lg);
    padding: 60px 50px;
    background:
        linear-gradient(135deg, rgba(0, 224, 199, 0.16), rgba(124, 92, 255, 0.16)),
        var(--bg-2);
    border: 1px solid var(--border-strong);
    display: flex; align-items: center; justify-content: space-between; gap: 30px;
    flex-wrap: wrap;
    position: relative;
    overflow: hidden;
}
.cta-band::before {
    content: '';
    position: absolute;
    width: 360px; height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    opacity: 0.25;
    top: -120px; right: -120px;
    filter: blur(20px);
}
.cta-band h2 { font-size: 2rem; max-width: 520px; }
.cta-band p { color: var(--text-dim); margin-top: 10px; max-width: 520px; }

/* ---------- PRODUCTS page ---------- */
.page-hero {
    padding: 70px 0 50px;
    text-align: center;
}
.page-hero .breadcrumb {
    color: var(--text-mute);
    font-size: 0.86rem;
    margin-bottom: 20px;
}
.page-hero h1 {
    font-size: clamp(2.2rem, 4.5vw, 3.4rem);
    font-weight: 700;
}
.page-hero h1 .accent {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.page-hero p {
    color: var(--text-dim);
    max-width: 640px;
    margin: 18px auto 0;
    font-size: 1.05rem;
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    padding: 20px;
    margin: 30px auto 60px;
    max-width: 920px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}
.filter-btn {
    padding: 10px 20px;
    font-family: var(--ff-head);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-dim);
    border-radius: 999px;
    transition: all .25s ease;
}
.filter-btn:hover { color: var(--text); background: var(--surface-strong); }
.filter-btn.active {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #06101f;
    box-shadow: 0 6px 18px rgba(0, 224, 199, 0.3);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 26px;
    padding-bottom: 80px;
}
.product-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform .4s ease, border-color .4s ease, box-shadow .4s ease;
    display: flex;
    flex-direction: column;
}
.product-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-strong);
    box-shadow: 0 28px 60px rgba(0, 0, 0, 0.55);
}
.product-img {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    position: relative;
    background: var(--bg-2);
}
.product-img img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform .6s ease;
}
.product-card:hover .product-img img { transform: scale(1.08); }
.product-cat {
    position: absolute;
    top: 14px; left: 14px;
    padding: 6px 12px;
    font-family: var(--ff-head);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: rgba(6, 10, 22, 0.75);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    color: var(--accent);
}
.product-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.product-body h3 { font-size: 1.15rem; margin-bottom: 10px; }
.product-body p {
    color: var(--text-dim);
    font-size: 0.92rem;
    margin-bottom: 18px;
    flex: 1;
}
.feature-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }
.feature-chips span {
    font-size: 0.72rem;
    padding: 5px 10px;
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-dim);
    font-family: var(--ff-head);
}
.product-foot {
    padding-top: 14px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.product-foot a {
    font-family: var(--ff-head);
    font-weight: 500;
    font-size: 0.88rem;
    color: var(--accent);
    display: inline-flex; align-items: center; gap: 6px;
    transition: gap .25s ease;
}
.product-foot a:hover { gap: 12px; }

.no-products {
    grid-column: 1 / -1;
    padding: 60px;
    text-align: center;
    color: var(--text-mute);
    background: var(--surface);
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius);
}

/* ---------- ABOUT page ---------- */
.about-split {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 70px;
    align-items: center;
}
.about-text p {
    color: var(--text-dim);
    font-size: 1.03rem;
    margin: 14px 0;
}
.about-img {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 480px;
    border: 1px solid var(--border-strong);
}
.about-img img { width: 100%; height: 100%; object-fit: cover; }
.about-badge {
    position: absolute;
    bottom: 20px; left: 20px; right: 20px;
    padding: 18px 22px;
    background: rgba(15, 22, 42, 0.8);
    backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    display: flex; align-items: center; gap: 18px;
}
.about-badge .num {
    font-family: var(--ff-head);
    font-size: 2.2rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text; background-clip: text; color: transparent;
    line-height: 1;
}
.about-badge .t { font-family: var(--ff-head); color: var(--text); font-weight: 500; }
.about-badge .s { color: var(--text-mute); font-size: 0.85rem; }

.mv-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 40px;
}
.mv-card {
    padding: 36px;
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--border);
    position: relative;
}
.mv-card .k {
    position: absolute;
    top: 20px; right: 22px;
    font-family: var(--ff-head);
    font-size: 4rem;
    font-weight: 700;
    color: var(--surface-strong);
    line-height: 1;
}
.mv-card h3 { font-size: 1.35rem; margin-bottom: 12px; }
.mv-card h3 i {
    color: var(--accent);
    margin-right: 10px;
}
.mv-card p { color: var(--text-dim); font-size: 0.98rem; }

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
    margin-top: 40px;
}
.why-card {
    padding: 28px 24px;
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--border);
    transition: all .35s ease;
}
.why-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    background: linear-gradient(135deg, rgba(0, 224, 199, 0.06), transparent);
}
.why-card .n {
    font-family: var(--ff-head);
    font-size: 0.82rem;
    color: var(--accent);
    letter-spacing: 0.2em;
    margin-bottom: 14px;
}
.why-card h4 { font-size: 1.1rem; margin-bottom: 8px; }
.why-card p { color: var(--text-dim); font-size: 0.92rem; }

/* ---------- CONTACT page ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 60px;
}
.contact-info {
    padding: 40px;
    border-radius: var(--radius-lg);
    background:
        linear-gradient(180deg, rgba(0, 224, 199, 0.08), rgba(124, 92, 255, 0.08)),
        var(--surface);
    border: 1px solid var(--border-strong);
    position: relative;
    overflow: hidden;
}
.contact-info::before {
    content: '';
    position: absolute;
    width: 260px; height: 260px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.18;
    filter: blur(60px);
    top: -100px; right: -80px;
}
.contact-info h2 { font-size: 1.8rem; margin-bottom: 12px; }
.contact-info > p { color: var(--text-dim); margin-bottom: 30px; }

.info-list { display: flex; flex-direction: column; gap: 18px; }
.info-item {
    display: flex;
    gap: 16px;
    padding: 18px;
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--border);
    transition: border-color .3s ease, transform .3s ease;
}
.info-item:hover { border-color: var(--accent); transform: translateX(4px); }
.info-item .ii {
    width: 44px; height: 44px; flex-shrink: 0;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(0, 224, 199, 0.18), rgba(124, 92, 255, 0.2));
    border: 1px solid rgba(0, 224, 199, 0.3);
    display: grid; place-items: center;
    color: var(--accent);
}
.info-item .h { font-family: var(--ff-head); font-weight: 500; color: var(--text); margin-bottom: 3px; font-size: 0.95rem; }
.info-item .v { color: var(--text-dim); font-size: 0.92rem; line-height: 1.5; }
.info-item a { color: inherit; }
.info-item a:hover { color: var(--accent); }

.contact-form-wrap {
    padding: 40px;
    border-radius: var(--radius-lg);
    background: var(--surface);
    border: 1px solid var(--border);
}
.contact-form-wrap h2 { font-size: 1.8rem; margin-bottom: 8px; }
.contact-form-wrap > p { color: var(--text-dim); margin-bottom: 28px; }

.alert {
    padding: 14px 18px;
    border-radius: 12px;
    margin-bottom: 22px;
    font-size: 0.94rem;
    display: flex; align-items: center; gap: 10px;
}
.alert-success {
    background: rgba(0, 224, 199, 0.1);
    border: 1px solid rgba(0, 224, 199, 0.35);
    color: var(--accent);
}
.alert-error {
    background: rgba(255, 91, 91, 0.08);
    border: 1px solid rgba(255, 91, 91, 0.35);
    color: var(--danger);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}
.form-field { position: relative; }
.form-field label {
    position: absolute;
    left: 18px; top: 16px;
    font-size: 0.92rem;
    color: var(--text-mute);
    pointer-events: none;
    transition: all .25s ease;
    background: transparent;
    padding: 0 6px;
}
.form-field input,
.form-field textarea {
    width: 100%;
    padding: 18px;
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--ff-body);
    font-size: 0.96rem;
    transition: border-color .25s ease, background .25s ease;
}
.form-field textarea { resize: vertical; min-height: 140px; }
.form-field input:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-2);
}
.form-field input:focus + label,
.form-field textarea:focus + label,
.form-field input:not(:placeholder-shown) + label,
.form-field textarea:not(:placeholder-shown) + label {
    top: -9px;
    font-size: 0.74rem;
    color: var(--accent);
    background: var(--surface);
    border-radius: 4px;
}
.form-field .err {
    color: var(--danger);
    font-size: 0.8rem;
    margin-top: 6px;
    display: none;
}
.form-field.has-error input,
.form-field.has-error textarea {
    border-color: var(--danger);
}
.form-field.has-error .err { display: block; }

.form-submit { margin-top: 10px; width: 100%; justify-content: center; }

.map-wrap {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-strong);
    height: 420px;
    margin-bottom: 80px;
    position: relative;
}
.map-wrap iframe {
    width: 100%; height: 100%; border: 0;
    filter: invert(0.9) hue-rotate(180deg) contrast(0.85);
}

/* ---------- Footer ---------- */
.site-footer {
    margin-top: 80px;
    border-top: 1px solid var(--border);
    background: linear-gradient(180deg, transparent, rgba(6, 10, 22, 0.6));
}
.footer-top {
    max-width: var(--container);
    margin: 0 auto;
    padding: 70px 28px 50px;
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
    gap: 50px;
}
.footer-col p { color: var(--text-dim); font-size: 0.93rem; margin: 18px 0 22px; }
.footer-col h4 {
    font-size: 0.94rem;
    margin-bottom: 22px;
    font-family: var(--ff-head);
    letter-spacing: 0.04em;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
    color: var(--text-dim);
    font-size: 0.92rem;
    transition: color .25s ease, padding .25s ease;
}
.footer-col ul a:hover { color: var(--accent); padding-left: 5px; }
.footer-col.brand-col .brand { margin-bottom: 6px; }
.socials { display: flex; gap: 10px; }
.socials a {
    width: 38px; height: 38px;
    border-radius: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    display: grid; place-items: center;
    color: var(--text-dim);
    transition: all .25s ease;
}
.socials a:hover {
    background: var(--accent);
    color: #06101f;
    border-color: var(--accent);
    transform: translateY(-3px);
}
.contact-list li {
    display: flex; gap: 12px;
    color: var(--text-dim);
    font-size: 0.9rem;
    margin-bottom: 14px;
    line-height: 1.5;
}
.contact-list i { color: var(--accent); margin-top: 4px; flex-shrink: 0; }

.footer-bottom {
    max-width: var(--container);
    margin: 0 auto;
    padding: 24px 28px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-mute);
    font-size: 0.86rem;
    flex-wrap: wrap;
    gap: 10px;
}
.footer-bottom .fa-heart { color: var(--accent-3); }

/* ---------- Scroll-to-top ---------- */
.scroll-top {
    position: fixed;
    right: 24px; bottom: 24px;
    width: 46px; height: 46px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #06101f;
    display: grid; place-items: center;
    box-shadow: 0 10px 30px rgba(0, 224, 199, 0.35);
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    transition: all .3s ease;
    z-index: 50;
}
.scroll-top.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
.scroll-top:hover { transform: translateY(-4px); }

/* ---------- Reveal animation ---------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .7s ease, transform .7s ease;
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
    .hero-grid, .about-split, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { height: 480px; }
    .mv-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
    .section { padding: 80px 0; }
    .nav-menu {
        position: fixed;
        inset: var(--header-h) 0 auto 0;
        background: rgba(8, 12, 24, 0.98);
        backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px);
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-120%);
        transition: transform .35s ease;
        gap: 4px;
    }
    .nav-menu.open { transform: translateY(0); }
    .nav-menu a { width: 100%; padding: 14px 18px; }
    .nav-toggle { display: flex; }

    .hero { padding: 60px 0 80px; }
    .hero-visual { height: 400px; }
    .hv-chip { font-size: 0.8rem; padding: 10px 12px; }
    .hero-stats { grid-template-columns: 1fr; gap: 18px; }

    .cta-band { padding: 40px 28px; flex-direction: column; align-items: flex-start; }
    .filter-bar { border-radius: var(--radius); padding: 12px; }
    .form-row { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; gap: 34px; padding: 50px 28px 34px; }
    .about-img { height: 360px; }
    .contact-info, .contact-form-wrap { padding: 28px; }
}

@media (max-width: 480px) {
    .brand-text { font-size: 1rem; }
    .ticker { font-size: 0.74rem; }
    .section-title { font-size: 1.9rem; }
}