@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800&display=swap");

:root {
    color-scheme: dark;
    --bg: #050505;
    --panel: rgba(9, 9, 9, 0.78);
    --panel-strong: rgba(0, 0, 0, 0.88);
    --text: #f6f6f6;
    --muted: #9ea0a7;
    --accent: #ffffff;
    --accent-2: #d0d0d0;
    --line: rgba(255, 255, 255, 0.12);
    --radius: 28px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: 'Poppins', 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ol { padding-left: 20px; }

.bg-field {
    position: fixed; inset: 0;
    background: radial-gradient(circle at 20% -10%, rgba(255,214,0,0.25), transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255,214,0,0.18), transparent 55%),
                linear-gradient(120deg, rgba(255,255,255,0.02), transparent 40%);
    z-index: 0;
}
.bg-field .glow {
    position: absolute; width: 420px; height: 420px;
    filter: blur(160px); opacity: 0.55;
}
.glow-one { top: 10%; left: -110px; background: #fcd03a; }
.glow-two { bottom: -160px; right: -110px; background: #f7b500; }
.bg-field .grid {
    position: absolute; inset: 0;
    background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 160px 160px;
    opacity: 0.25;
    mix-blend-mode: screen;
}

.site-header {
    position: fixed; top: 0; width: 100%; z-index: 10;
    background: linear-gradient(90deg, rgba(5,5,5,0.82), rgba(5,5,5,0.32));
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(18px);
}
.nav-container {
    max-width: 1320px; margin: 0 auto; padding: 16px 32px;
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.brand img { width: 48px; height: 48px; object-fit: contain; filter: drop-shadow(0 0 20px rgba(255,214,0,0.45)); }
.primary-nav { display: flex; gap: 32px; }
.primary-nav a { font-weight: 600; color: var(--muted); font-size: 0.95rem; position: relative; }
.primary-nav a::after {
    content: ""; position: absolute; left: 0; bottom: -6px; width: 100%; height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2)); transform: scaleX(0); transform-origin: left; transition: transform 0.2s ease;
}
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--text); }
.primary-nav a:hover::after, .primary-nav a:focus-visible::after { transform: scaleX(1); }
.search { display: inline-flex; align-items: center; gap: 10px; border: 1px solid var(--line); padding: 0 16px; border-radius: 999px; background: rgba(255,255,255,0.03); }
.search input { background: transparent; border: 0; color: var(--text); font: inherit; padding: 10px 0; width: 140px; }
.search input:focus { outline: none; }
.search .icon {
    width: 16px; height: 16px; border: 2px solid var(--muted); border-radius: 50%; position: relative;
}
.search .icon::after {
    content: ""; width: 7px; height: 2px; background: var(--muted); position: absolute; right: -6px; bottom: -4px; transform: rotate(45deg);
}

main { position: relative; z-index: 1; padding-top: 120px; }
section { padding: 140px 0; border-top: 1px solid rgba(255,255,255,0.05); }
.container { max-width: 1220px; margin: 0 auto; padding: 0 40px; }
.split { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 60px; align-items: center; }

.eyebrow { text-transform: uppercase; letter-spacing: 0.32em; font-size: 0.78rem; color: var(--muted); margin: 0 0 12px; }
.accent { color: var(--accent); }
.source-tag { color: var(--accent); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.2em; }
h1, h2, h3 { margin: 0; line-height: 1.1; }
h1 { font-size: clamp(4rem, 10vw, 7.5rem); letter-spacing: -0.04em; text-transform: uppercase; }
h2 { font-size: clamp(2.4rem, 6vw, 4rem); }
h3 { font-size: 1.6rem; }
.lede { max-width: 580px; color: var(--muted); }
.pill {
    display: inline-flex; align-items: center; gap: 6px; padding: 10px 18px; border-radius: 999px;
    border: 1px solid rgba(255,255,255,0.18); color: var(--text); font-weight: 600; text-transform: uppercase; font-size: 0.85rem;
    background: rgba(255,255,255,0.04);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 24px 0; }

.hero { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; padding-top: 160px; }
.hero-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 60px; align-items: flex-end; padding: 0 40px 40px; }
.hero-text { padding-right: 20px; }
.hero-stats { margin-top: 32px; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; }
.hero-stats article { padding: 18px; border-radius: 22px; border: 1px solid var(--line); background: rgba(255,255,255,0.02); backdrop-filter: blur(8px); }
.hero-stats .label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.3em; color: var(--muted); margin: 0 0 6px; }
.hero-stats .value { font-size: 1.1rem; font-weight: 700; margin: 0; }
.hero-stats .hint { margin: 6px 0 0; color: var(--muted); font-size: 0.9rem; }
.hero-media { display: grid; gap: 18px; }
.hero-image { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: 0 40px 120px rgba(0,0,0,0.45); }
.hero-panel { background: var(--panel-strong); border-radius: var(--radius); border: 1px solid rgba(255,255,255,0.18); padding: 24px; box-shadow: 0 25px 80px rgba(0,0,0,0.5); }
.hero-panel p { margin: 0 0 10px; }
.insight-rail { display: flex; gap: 12px; }
.insight-rail button {
    border: 0; cursor: pointer; padding: 10px 16px; border-radius: 999px; font-weight: 600;
    background: rgba(255,255,255,0.08); color: var(--muted); transition: background 0.2s ease, color 0.2s ease;
}
.insight-rail button span { display: inline-block; }
.insight-rail button.active { background: linear-gradient(120deg, var(--accent), var(--accent-2)); color: #050505; }

.hero-foot { text-align: center; font-size: 0.85rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--muted); }
.hero-foot .divider {
    display: block; height: 1px; background: var(--line); max-width: 540px; margin: 30px auto 18px; position: relative;
}
.hero-foot .divider::before, .hero-foot .divider::after {
    content: "+"; position: absolute; top: -12px; color: var(--muted);
}
.hero-foot .divider::before { left: -30px; }
.hero-foot .divider::after { right: -30px; }

.section-head { margin-bottom: 60px; }
.section-head p { max-width: 640px; }

.intro-layout { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 70px; align-items: center; }
.intro-copy { position: relative; }
.intro-title { font-size: clamp(4rem, 8vw, 6rem); text-transform: uppercase; margin-bottom: 14px; }
.intro-subline { font-size: 1.3rem; margin: 0 0 24px; max-width: 520px; }
.intro-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; color: var(--muted); }
.intro-visual { position: relative; }
.intro-visual figure { margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.intro-card { max-width: 320px; }
.card-label { text-transform: uppercase; letter-spacing: 0.3em; font-size: 0.75rem; color: var(--muted); margin: 0 0 8px; }
.floating-card {
    position: absolute; bottom: -40px; left: 20px; background: var(--panel-strong);
    border-radius: 24px; padding: 24px; border: 1px solid rgba(255,255,255,0.18);
    box-shadow: 0 30px 80px rgba(0,0,0,0.45);
}
.round-link { margin-top: 12px; border: 1px solid var(--line); background: transparent; color: var(--text); border-radius: 999px; padding: 10px 18px; font-weight: 600; cursor: pointer; }

.role-grid { display: flex; flex-direction: column; gap: 60px; }
.role-top { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 60px; align-items: center; }
.role-headline h2 { font-size: clamp(3rem, 7vw, 5rem); text-transform: uppercase; margin: 12px 0; }
.role-headline h2 span { display: block; }
.role-media { display: flex; justify-content: flex-end; }
.role-stack { display: flex; flex-direction: column; gap: 20px; width: min(420px, 100%); position: relative; }
.role-img { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: 0 25px 80px rgba(0,0,0,0.35); }
.role-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.role-img--top { aspect-ratio: 1 / 1; }
.role-img--bottom { aspect-ratio: 4 / 5; margin-left: 60px; }
.role-benefits { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px; position: relative; }
.role-benefits article { padding: 18px 18px 18px 0; border-top: 1px solid var(--line); position: relative; }
.role-benefits article::after { content: ""; position: absolute; right: -15px; top: 20%; bottom: 20%; width: 1px; background: var(--line); }
.role-benefits article:last-child::after { display: none; }
.benefit-number {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #000;
    font-weight: 700;
    font-size: 1.3rem;
    margin-bottom: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}
.role-benefits h3 { margin: 0 0 8px; }
.role-benefits p { margin: 0; color: var(--muted); }

.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 28px; }
.type-card, .limit-card { padding: 28px; border-radius: var(--radius); background: rgba(255,255,255,0.03); border: 1px solid var(--line); box-shadow: 0 20px 60px rgba(0,0,0,0.35); }
.type-card img { border-radius: 20px; margin-bottom: 18px; border: 1px solid rgba(255,255,255,0.12); }
.type-card ul { padding-left: 18px; color: var(--muted); }
.type-card li { margin-bottom: 8px; }
.type-card .note, .note { margin-top: 12px; font-size: 0.9rem; color: var(--muted); }
.contrast { margin-top: 40px; text-align: center; font-weight: 600; }

.tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.tech-grid article { padding: 26px; border-radius: var(--radius); background: linear-gradient(145deg, rgba(255,255,255,0.04), rgba(0,0,0,0.85)); border: 1px solid var(--line); }
.tech-grid .mini { text-transform: uppercase; letter-spacing: 0.3em; font-size: 0.75rem; color: var(--muted); }
.tech-grid .tag { text-transform: uppercase; font-size: 0.85rem; color: var(--accent); margin-top: 14px; letter-spacing: 0.25em; }

.cost-card { padding: 32px; border-radius: var(--radius); border: 1px solid var(--line); background: rgba(255,255,255,0.02); box-shadow: 0 25px 80px rgba(0,0,0,0.35); }
.cost-card ul { color: var(--muted); padding-left: 18px; }
.free-tier { margin-top: 60px; border: 1px dashed rgba(255,255,255,0.22); border-radius: var(--radius); padding: 32px; background: rgba(255,255,255,0.03); }

.prompt-card { padding: 32px; border-radius: var(--radius); background: rgba(0,0,0,0.8); border: 1px solid rgba(255,255,255,0.18); box-shadow: 0 25px 70px rgba(0,0,0,0.4); }
.prompt-card ol, .prompt-card ul { color: var(--muted); }
.prompt-card blockquote { margin: 18px 0 0; padding: 18px; border-left: 4px solid var(--accent); background: rgba(255,255,255,0.05); border-radius: 12px; color: var(--muted); font-style: italic; }
.prompt-media { margin-top: 60px; }
.prompt-gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.prompt-gallery figure { margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: rgba(255,255,255,0.02); }
.prompt-gallery figcaption { padding: 14px 20px; font-weight: 600; }

.impact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.impact-grid article { padding: 24px; border-radius: var(--radius); border: 1px solid var(--line); background: rgba(255,255,255,0.02); box-shadow: 0 20px 60px rgba(0,0,0,0.35); }
.bar { height: 6px; border-radius: 4px; background: rgba(255,255,255,0.08); margin-top: 18px; overflow: hidden; }
.bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }

.limit-card h3 { font-size: 1.3rem; }

.future .split article { padding: 28px; border-radius: var(--radius); background: rgba(255,255,255,0.03); border: 1px solid var(--line); }
.future ul { color: var(--muted); padding-left: 18px; }

.sources ul { list-style: none; padding-left: 0; display: grid; gap: 18px; color: var(--muted); }
.sources li { background: rgba(0,0,0,0.7); border-radius: var(--radius); border: 1px solid var(--line); padding: 20px 24px; }
.sources a { color: var(--accent); }

.site-footer {
    border-top: 1px solid var(--line); padding: 32px 40px 60px; text-align: center; color: var(--muted); position: relative; z-index: 1;
}

@media (max-width: 900px) {
    .nav-container { flex-direction: column; }
    .primary-nav { flex-wrap: wrap; justify-content: center; }
    .search input { width: 100px; }
    .intro-columns { grid-template-columns: 1fr; }
    .role-benefits { grid-template-columns: 1fr; }
    .role-benefits article { padding-right: 0; }
    .role-benefits article::after { display: none; }
    .role-img--bottom { margin-left: 0; }
}

@media (max-width: 600px) {
    .hero-grid { padding: 0 24px 24px; }
    .nav-container { padding: 16px 20px; }
    .container { padding: 0 24px; }
    section { padding: 100px 0; }
    .hero-foot .divider::before, .hero-foot .divider::after { display: none; }
}