:root {
    --color-bg: #08111f;
    --color-bg-deep: #050914;
    --color-bg-soft: #0d1829;
    --color-surface: #111f34;
    --color-surface-2: #162945;
    --color-card: rgba(18, 33, 55, 0.82);
    --color-card-border: rgba(153, 220, 255, 0.18);
    --color-text: #eaf2ff;
    --color-muted: #a9b8cf;
    --color-soft-text: #d7e3f8;
    --color-accent: #7cf7d4;
    --color-accent-strong: #33d6ff;
    --color-accent-dark: #0a5667;
    --color-purple: #8d72ff;
    --color-lime: #d8ff74;
    --color-warning: #ffcb7c;
    --color-link: #7cf7d4;
    --color-heading: #f7fbff;
    --color-button: #7cf7d4;
    --color-button-text: #06131e;
    --gradient-brand: radial-gradient(circle at 20% 20%, rgba(124, 247, 212, 0.22), transparent 34%), radial-gradient(circle at 88% 12%, rgba(141, 114, 255, 0.24), transparent 36%), linear-gradient(135deg, #08111f 0%, #0d1d32 58%, #09101d 100%);
    --shadow-soft: 0 24px 80px rgba(0, 0, 0, 0.32);
    --shadow-card: 0 18px 45px rgba(1, 9, 20, 0.32);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --container: 1160px;
    --font-main: Inter, Manrope, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-display: "Space Grotesk", "IBM Plex Sans", Inter, system-ui, sans-serif;
    --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    background: var(--gradient-brand);
    color: var(--color-text);
    font-family: var(--font-main);
    line-height: 1.65;
    text-rendering: optimizeLegibility;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image: linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: radial-gradient(circle at top, rgba(0,0,0,0.7), transparent 68%);
    z-index: -1;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-link);
    text-decoration: none;
}

a:hover {
    color: var(--color-accent-strong);
}

p {
    margin: 0 0 1.05rem;
    color: var(--color-soft-text);
}

h1, h2, h3 {
    color: var(--color-heading);
    font-family: var(--font-display);
    line-height: 1.08;
    letter-spacing: -0.035em;
    margin: 0 0 1rem;
}

h1 {
    font-size: clamp(2.55rem, 7vw, 5.65rem);
    max-width: 980px;
}

h2 {
    font-size: clamp(1.8rem, 4vw, 3.2rem);
}

h3 {
    font-size: clamp(1.2rem, 2.3vw, 1.55rem);
}

.container {
    width: min(100% - 40px, var(--container));
    margin: 0 auto;
}

.skip-link {
    position: absolute;
    left: 16px;
    top: -100px;
    z-index: 20;
    padding: 12px 16px;
    border-radius: 999px;
    background: var(--color-accent);
    color: var(--color-button-text);
    font-weight: 800;
}

.skip-link:focus {
    top: 16px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid rgba(170, 216, 255, 0.12);
    background: rgba(5, 9, 20, 0.72);
    backdrop-filter: blur(22px);
}

.header-grid {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--color-heading);
    font-family: var(--font-display);
    font-size: 1.32rem;
    font-weight: 850;
    letter-spacing: -0.04em;
}

.brand:hover {
    color: var(--color-heading);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 999px;
    background: rgba(13, 24, 41, 0.62);
}

.main-nav a {
    color: var(--color-muted);
    padding: 9px 14px;
    border-radius: 999px;
    font-size: 0.94rem;
    font-weight: 750;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
    color: var(--color-heading);
    background: rgba(124, 247, 212, 0.12);
}

.hero {
    padding: 92px 0 58px;
}

.inner-hero {
    padding-top: 76px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.78fr);
    gap: 44px;
    align-items: center;
}

.hero-copy {
    position: relative;
}

.hero-lead {
    max-width: 720px;
    font-size: clamp(1.08rem, 2vw, 1.32rem);
    color: #dce8fb;
}

.eyebrow {
    display: inline-flex;
    width: fit-content;
    gap: 8px;
    align-items: center;
    margin-bottom: 16px;
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.eyebrow::before {
    content: "";
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--color-accent);
    box-shadow: 0 0 22px var(--color-accent);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 13px 19px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-weight: 850;
    line-height: 1.1;
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-button), var(--color-accent-strong));
    color: var(--color-button-text);
    box-shadow: 0 15px 38px rgba(51, 214, 255, 0.18);
}

.btn-primary:hover {
    color: var(--color-button-text);
}

.btn-ghost {
    color: var(--color-heading);
    border-color: rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.045);
}

.btn-ghost:hover {
    border-color: rgba(124, 247, 212, 0.46);
    background: rgba(124, 247, 212, 0.09);
    color: var(--color-heading);
}

.full {
    width: 100%;
}

.glow-card {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.025));
    box-shadow: var(--shadow-soft);
}

.glow-card::before {
    content: "";
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, rgba(124,247,212,0.45), transparent 30%, rgba(141,114,255,0.38));
    opacity: 0.35;
    pointer-events: none;
}

.hero-media img {
    position: relative;
    z-index: 1;
    width: 100%;
}

.hero-media figcaption {
    position: relative;
    z-index: 1;
    padding: 0 20px 20px;
    color: var(--color-muted);
    font-size: 0.93rem;
}

.section {
    padding: 68px 0;
}

.section-head {
    max-width: 780px;
    margin-bottom: 28px;
}

.section-head p:last-child {
    font-size: 1.08rem;
}

.cards {
    display: grid;
    gap: 18px;
}

.four-cards {
    grid-template-columns: repeat(4, 1fr);
}

.three-cards {
    grid-template-columns: repeat(3, 1fr);
}

.card,
.side-card,
.signal-panel,
.timeline article {
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-md);
    background: var(--color-card);
    box-shadow: var(--shadow-card);
}

.card {
    min-height: 250px;
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.card::after {
    content: "";
    position: absolute;
    right: -36px;
    top: -36px;
    width: 110px;
    height: 110px;
    border-radius: 999px;
    background: rgba(124, 247, 212, 0.1);
}

.card-kicker {
    display: inline-block;
    margin-bottom: 14px;
    color: var(--color-lime);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.card-link a,
.text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    font-weight: 850;
}

.card-link a::after,
.text-link::after {
    content: "→";
    transition: transform 0.18s ease;
}

.card-link a:hover::after,
.text-link:hover::after {
    transform: translateX(4px);
}

.split-section {
    background: linear-gradient(180deg, transparent, rgba(5, 9, 20, 0.28), transparent);
}

.split-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 420px;
    gap: 28px;
    align-items: start;
}

.signal-panel,
.side-card {
    padding: 28px;
}

.check-list,
.number-list {
    padding: 0;
    margin: 0;
    list-style: none;
}

.check-list li,
.number-list li {
    position: relative;
    padding-left: 30px;
    margin: 14px 0;
    color: var(--color-soft-text);
}

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    display: grid;
    place-items: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(124, 247, 212, 0.13);
    color: var(--color-accent);
    font-weight: 900;
    font-size: 0.78rem;
}

.number-list {
    counter-reset: list;
}

.number-list li {
    counter-increment: list;
}

.number-list li::before {
    content: counter(list);
    position: absolute;
    left: 0;
    top: 0;
    display: grid;
    place-items: center;
    width: 21px;
    height: 21px;
    border-radius: 8px;
    background: rgba(141, 114, 255, 0.2);
    color: var(--color-heading);
    font-family: var(--font-mono);
    font-size: 0.76rem;
    font-weight: 900;
}

.compact li {
    margin: 12px 0;
}

.muted-section {
    background: rgba(3, 7, 16, 0.26);
}

.timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.timeline article {
    padding: 24px;
}

.timeline span {
    display: inline-flex;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    border-radius: 14px;
    background: rgba(124, 247, 212, 0.12);
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-weight: 900;
}

.cta-band {
    padding: 58px 0 84px;
}

.cta-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 28px;
    align-items: center;
    padding: 34px;
    border: 1px solid rgba(124, 247, 212, 0.22);
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(124,247,212,0.12), rgba(141,114,255,0.12));
    box-shadow: var(--shadow-soft);
}

.cta-grid p {
    max-width: 780px;
}

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 34px;
    align-items: start;
}

.prose {
    max-width: 810px;
}

.prose h2 {
    margin-top: 34px;
}

.prose h2:first-of-type {
    margin-top: 0;
}

.prose h3 {
    margin-top: 24px;
    color: #f2f8ff;
}

.prose p {
    font-size: 1.05rem;
}

.side-card {
    position: sticky;
    top: 104px;
}

.score-list {
    list-style: none;
    padding: 0;
    margin: 8px 0 24px;
}

.score-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    color: var(--color-soft-text);
}

.score-list strong {
    color: var(--color-accent);
    font-family: var(--font-mono);
}

.site-footer {
    border-top: 1px solid rgba(255,255,255,0.1);
    background: rgba(2, 6, 14, 0.72);
    padding: 46px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr;
    gap: 34px;
    align-items: start;
}

.footer-brand {
    margin-bottom: 14px;
}

.footer-title {
    margin-bottom: 14px;
    font-size: 1rem;
    letter-spacing: 0;
}

.footer-links {
    display: grid;
    gap: 8px;
}

.footer-links a {
    color: var(--color-muted);
    font-weight: 750;
}

.footer-links a:hover {
    color: var(--color-accent);
}

@media (max-width: 980px) {
    .header-grid {
        min-height: auto;
        padding: 15px 0;
        align-items: flex-start;
        flex-direction: column;
    }

    .main-nav {
        width: 100%;
        overflow-x: auto;
        justify-content: flex-start;
        border-radius: 18px;
        scrollbar-width: none;
    }

    .main-nav::-webkit-scrollbar {
        display: none;
    }

    .hero-grid,
    .split-grid,
    .article-layout,
    .cta-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 54px;
    }

    .four-cards,
    .timeline {
        grid-template-columns: repeat(2, 1fr);
    }

    .three-cards {
        grid-template-columns: 1fr;
    }

    .side-card {
        position: static;
    }

    .cta-grid .btn {
        width: fit-content;
    }
}

@media (max-width: 640px) {
    .container {
        width: min(100% - 28px, var(--container));
    }

    .brand {
        font-size: 1.18rem;
    }

    .main-nav a {
        padding: 8px 11px;
        font-size: 0.88rem;
        white-space: nowrap;
    }

    .hero {
        padding-top: 42px;
        padding-bottom: 42px;
    }

    .section {
        padding: 48px 0;
    }

    .four-cards,
    .timeline {
        grid-template-columns: 1fr;
    }

    .card,
    .side-card,
    .signal-panel,
    .timeline article,
    .cta-grid {
        border-radius: 20px;
        padding: 20px;
    }

    .hero-actions,
    .btn {
        width: 100%;
    }

    .cta-grid .btn {
        width: 100%;
    }

    .site-footer {
        padding: 36px 0;
    }
}