:root {
    --bg: #000000;
    --bg-alt: #0a0a0a;
    --surface: #121212;
    --surface-2: #1a1a1a;
    --border: rgba(255, 255, 255, 0.08);
    --text: #f5f5f5;
    --muted: #a1a1a1;
    --brand: #ff7a1a;
    --brand-2: #ff9d3d;
    --accent: #ffb347;
    --grad: linear-gradient(135deg, #ff5a1a 0%, #ff7a1a 55%, #ffa640 100%);
    --shadow-lg: 0 30px 60px -20px rgba(0, 0, 0, 0.7);
    --radius: 14px;
    --radius-lg: 22px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
    scroll-behavior: smooth;
}

h1, h2, h3, h4 {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin: 0 0 0.6em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 700; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 600; }
p  { margin: 0 0 1rem; color: var(--muted); }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--brand); }

.container {
    width: 100%;
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 24px;
}

.eyebrow {
    display: inline-block;
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--brand);
    font-weight: 600;
    margin-bottom: 14px;
    padding: 6px 12px;
    border: 1px solid rgba(255, 122, 26, 0.25);
    border-radius: 999px;
    background: rgba(255, 122, 26, 0.06);
}

.grad-text {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.muted { color: var(--muted); }

/* ========== Header / Nav ========== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 16px 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid transparent;
    transition: background 0.25s ease, border-color 0.25s ease, padding 0.25s ease;
}
.site-header.scrolled {
    padding: 10px 0;
    background: rgba(0, 0, 0, 0.85);
    border-bottom-color: var(--border);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.15rem;
    color: var(--text);
}
.brand:hover { color: var(--text); }
.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 32px;
    height: 32px;
    background: var(--grad);
    border-radius: 8px;
    font-size: 0.8rem;
    color: #fff;
    letter-spacing: 0.02em;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}
.site-nav a {
    padding: 8px 14px;
    border-radius: 8px;
    font-weight: 500;
    color: var(--muted);
    transition: color 0.2s ease, background 0.2s ease;
}
.site-nav a:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.site-nav .nav-cta {
    background: var(--grad);
    color: #fff;
    padding: 9px 16px;
    margin-left: 6px;
}
.site-nav .nav-cta:hover { filter: brightness(1.1); }

.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    margin-left: 8px;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
}
.lang-switch .lang-link {
    padding: 4px 8px;
    border-radius: 999px;
    color: var(--muted);
    font-weight: 600;
    transition: color 0.15s ease, background 0.15s ease;
}
.lang-switch .lang-link:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.lang-switch .lang-link.active {
    color: #000;
    background: var(--brand);
}
.lang-sep { color: var(--muted); opacity: 0.5; }
@media (max-width: 820px) {
    .lang-switch {
        justify-content: center;
        margin: 4px 0;
    }
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px;
    cursor: pointer;
}
.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

@media (max-width: 820px) {
    .nav-toggle { display: flex; }
    .site-nav {
        position: absolute;
        top: 100%;
        left: 16px; right: 16px;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        padding: 16px;
        margin-top: 10px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        box-shadow: var(--shadow-lg);
        transform: translateY(-8px);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.18s ease, transform 0.18s ease;
    }
    .site-nav.open {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }
    .site-nav .nav-cta { margin-left: 0; text-align: center; }
}

/* ========== Hero ========== */
.hero {
    position: relative;
    padding: 180px 0 120px;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.blob {
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.55;
}
.blob-1 {
    top: -120px;
    left: -80px;
    background: radial-gradient(circle, #ff5a1a 0%, transparent 60%);
}
.blob-2 {
    bottom: -140px;
    right: -120px;
    background: radial-gradient(circle, #ffa640 0%, transparent 60%);
}
.grid-overlay {
    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: 48px 48px;
    mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.6) 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.6) 30%, transparent 75%);
}
.hero-inner {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 860px;
}
.hero-title { margin-bottom: 22px; }
.hero-sub {
    font-size: 1.1rem;
    color: var(--muted);
    max-width: 640px;
    margin: 0 auto 32px;
}
.hero-cta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 60px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 13px 22px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.15s ease, filter 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}
.btn-primary {
    background: var(--grad);
    color: #fff;
}
.btn-primary:hover { filter: brightness(1.1); color: #fff; transform: translateY(-1px); }
.btn-ghost {
    background: transparent;
    color: var(--text);
    border-color: var(--border);
}
.btn-ghost:hover { background: rgba(255,255,255,0.04); }
.btn-full { width: 100%; }

.hero-stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 40px;
}
.hero-stats > div {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.hero-stats strong {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero-stats span {
    font-size: 0.85rem;
    color: var(--muted);
    letter-spacing: 0.02em;
}

/* ========== Sections ========== */
.section {
    padding: 110px 0;
    position: relative;
}
.section-alt {
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.section-head {
    max-width: 720px;
    margin: 0 auto 60px;
    text-align: center;
}
.section-head .lead { font-size: 1.05rem; }

/* Services grid */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
    position: relative;
    overflow: hidden;
}
.card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(400px circle at var(--x, 50%) var(--y, 0%), rgba(255, 122, 26,0.08), transparent 40%);
    opacity: 0;
    transition: opacity 0.25s ease;
    pointer-events: none;
}
.card:hover { transform: translateY(-4px); border-color: rgba(255, 122, 26, 0.35); background: var(--surface-2); }
.card:hover::before { opacity: 1; }
.card-icon {
    display: inline-grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: rgba(255, 122, 26, 0.12);
    color: var(--brand);
    font-family: 'Space Grotesk', monospace;
    font-weight: 700;
    margin-bottom: 18px;
    font-size: 1.15rem;
}
.card p { margin: 0; }

/* About */
.about-grid {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 60px;
    align-items: center;
}
@media (max-width: 900px) {
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
}
.check-list {
    list-style: none;
    padding: 0;
    margin: 20px 0 0;
}
.check-list li {
    position: relative;
    padding: 10px 0 10px 32px;
    color: var(--text);
    border-bottom: 1px dashed var(--border);
}
.check-list li:last-child { border-bottom: none; }
.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 10px;
    width: 22px;
    height: 22px;
    display: grid;
    place-items: center;
    background: var(--grad);
    color: #fff;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
}

.about-visual {
    position: relative;
    min-height: 340px;
}
.stack-card {
    position: absolute;
    padding: 18px;
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-width: 300px;
}
.stack-1 { top: 0; left: 5%; transform: rotate(-4deg); }
.stack-2 { top: 100px; right: 0; transform: rotate(3deg); }
.stack-3 { bottom: 0; left: 20%; transform: rotate(-2deg); }
.chip {
    padding: 6px 12px;
    background: rgba(255, 122, 26, 0.1);
    color: var(--brand);
    border: 1px solid rgba(255, 122, 26, 0.2);
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 500;
    font-family: 'Space Grotesk', sans-serif;
}
@media (max-width: 900px) {
    .about-visual { min-height: 380px; }
}

/* Pillars */
.pillars {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}
.pillar {
    padding: 30px 26px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: border-color 0.2s ease, transform 0.2s ease;
}
.pillar:hover { border-color: rgba(255, 122, 26, 0.35); transform: translateY(-3px); }
.pillar-num {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 14px;
}
.pillar p { margin: 0; }

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 60px;
    align-items: start;
}
@media (max-width: 900px) {
    .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}
.contact-list {
    list-style: none;
    padding: 0;
    margin: 24px 0 0;
    display: grid;
    gap: 12px;
}
.contact-list li {
    display: flex;
    align-items: baseline;
    gap: 16px;
    padding: 14px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
}
.contact-label {
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
    min-width: 60px;
}
.contact-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: grid;
    gap: 14px;
    box-shadow: var(--shadow-lg);
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}
@media (max-width: 560px) {
    .form-row { grid-template-columns: 1fr; }
}
.contact-form label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--muted);
    font-weight: 500;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font: inherit;
    font-size: 0.95rem;
    transition: border-color 0.15s ease, background 0.15s ease;
}
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--brand);
    background: var(--surface-2);
}
.contact-form textarea { resize: vertical; min-height: 120px; }

/* ========== Footer ========== */
.site-footer {
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 40px;
}
@media (max-width: 720px) {
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}
.brand--footer { margin-bottom: 12px; }
.site-footer h4 {
    font-size: 0.85rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text);
    margin-bottom: 14px;
}
.site-footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 8px;
}
.site-footer ul a { color: var(--muted); }
.site-footer ul a:hover { color: var(--brand); }
.footer-bottom {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.85rem;
}

/* Section IDs — offset for fixed header */
section[id] { scroll-margin-top: 80px; }