:root {
    color-scheme: dark;
    --bg: #04131f;
    --bg-soft: #0a2233;
    --panel: rgba(8, 26, 40, 0.72);
    --panel-strong: rgba(7, 19, 30, 0.86);
    --panel-border: rgba(142, 255, 233, 0.15);
    --text: #f5fbff;
    --muted: rgba(222, 238, 246, 0.74);
    --accent: #7cf4dc;
    --accent-strong: #3cd1ff;
    --glow: rgba(124, 244, 220, 0.25);
    --shadow: 0 28px 80px rgba(0, 0, 0, 0.38);
    --radius: 28px;
    --radius-sm: 18px;
    --container: min(1200px, calc(100vw - 40px));
    --page-progress: 0;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    background:
        radial-gradient(circle at top, rgba(60, 209, 255, 0.18), transparent 34%),
        radial-gradient(circle at 18% 18%, rgba(124, 244, 220, 0.18), transparent 24%),
        linear-gradient(180deg, #031019 0%, #061724 35%, #081d2a 100%);
    color: var(--text);
    font-family: 'Outfit', sans-serif;
    overflow-x: hidden;
}

body::before,
body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -2;
}

body::before {
    background:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: radial-gradient(circle at center, black 36%, transparent 80%);
}

body::after {
    background: radial-gradient(circle at 50% 20%, rgba(124, 244, 220, 0.12), transparent 44%);
    transform: translateY(calc(var(--page-progress) * -10%));
}

a {
    color: inherit;
    text-decoration: none;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

.site-shell {
    position: relative;
}

.site-header,
.hero,
.story-grid,
.scroll-stage,
.control-deck,
.onboarding,
.cta-band,
.site-footer {
    width: var(--container);
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 18px;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 18px;
    padding: 14px 18px;
    background: rgba(4, 18, 29, 0.56);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    backdrop-filter: blur(18px);
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.18);
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.brand-mark__glyph {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(124, 244, 220, 0.24), rgba(60, 209, 255, 0.9));
    color: #021018;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.26);
}

.site-nav,
.site-header__actions,
.hero__actions,
.hero__metrics,
.scene-card__hud,
.cta-band__actions,
.deck-highlights,
.onboarding-grid {
    display: flex;
    gap: 14px;
}

.site-nav {
    align-items: center;
    color: var(--muted);
    font-size: 0.95rem;
}

.site-nav a {
    transition: color 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--text);
}

.site-header__actions {
    align-items: center;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 20px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 600;
    transition:
        transform 180ms ease,
        border-color 180ms ease,
        background 180ms ease,
        box-shadow 180ms ease;
}

.button:hover,
.button:focus-visible {
    transform: translateY(-1px);
}

.button--primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
    color: #021018;
    box-shadow: 0 14px 34px rgba(60, 209, 255, 0.22);
}

.button--ghost {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.12);
    color: var(--text);
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(500px, 1.08fr);
    gap: 42px;
    align-items: start;
    padding: 84px 0 72px;
}

.hero__copy {
    display: grid;
    gap: 24px;
}

.eyebrow {
    margin: 0;
    color: var(--accent);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.86rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

h1,
h2,
h3 {
    margin: 0;
    font-family: 'Space Grotesk', sans-serif;
    line-height: 1.02;
}

h1 {
    font-size: clamp(3.25rem, 7.2vw, 5.4rem);
    letter-spacing: -0.06em;
}

h1 span {
    color: #b8fff0;
}

h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    letter-spacing: -0.05em;
}

h3 {
    font-size: 1.25rem;
}

p {
    margin: 0;
    color: var(--muted);
    font-size: 1.04rem;
    line-height: 1.72;
}

.hero__lede {
    max-width: 52ch;
    font-size: 1.08rem;
}

.hero__metrics {
    flex-wrap: wrap;
}

.metric-card,
.story-card,
.timeline-item,
.deck-panel,
.highlight-card,
.onboarding-step,
.cta-band {
    background: linear-gradient(180deg, rgba(9, 32, 48, 0.86), rgba(6, 18, 30, 0.96));
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
}

.metric-card {
    flex: 1 1 180px;
    display: grid;
    gap: 10px;
    padding: 20px;
    border-radius: 22px;
}

.metric-card__label,
.highlight-card__tag,
.overlay-panel__label,
.deck-chip,
.timeline-item__index {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.metric-card strong {
    font-size: 1.1rem;
    line-height: 1.35;
}

.hero__visual {
    position: relative;
    padding-top: 8px;
}

.scene-card {
    position: relative;
    overflow: hidden;
    min-height: 620px;
    padding: 18px;
    border-radius: 36px;
    background:
        radial-gradient(circle at top, rgba(124, 244, 220, 0.1), transparent 40%),
        linear-gradient(180deg, rgba(5, 17, 27, 0.88) 0%, rgba(5, 15, 24, 0.96) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow);
}

.scene-card::after {
    content: '';
    position: absolute;
    inset: 14px;
    border-radius: 28px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    pointer-events: none;
}

.scene-card__hud {
    position: relative;
    z-index: 2;
}

.hud-pill {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 0 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text);
    font-size: 0.8rem;
    font-weight: 600;
}

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

.scene-card__canvas {
    position: relative;
    min-height: 540px;
}

.scene-card__canvas canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.scene-card__overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.overlay-panel {
    position: absolute;
    max-width: 220px;
    padding: 16px 18px;
    border-radius: 20px;
    background: rgba(6, 21, 32, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(14px);
}

.overlay-panel strong {
    display: block;
    margin-top: 8px;
    line-height: 1.35;
}

.overlay-panel--north {
    top: 86px;
    left: 28px;
}

.overlay-panel--east {
    top: 184px;
    right: 28px;
}

.overlay-panel--south {
    right: 40px;
    bottom: 34px;
}

.story-grid,
.control-deck,
.onboarding {
    display: grid;
    gap: 18px;
    padding: 42px 0;
}

.story-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.story-card {
    display: grid;
    gap: 16px;
    padding: 28px;
    border-radius: var(--radius);
}

.story-card--wide {
    grid-column: span 3;
}

.scroll-stage {
    display: grid;
    gap: 28px;
    padding: 72px 0 42px;
}

.scroll-stage__copy {
    display: grid;
    gap: 18px;
    max-width: 760px;
}

.timeline-list {
    display: grid;
    gap: 16px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    padding: 24px;
    border-radius: var(--radius);
    transform: translateY(calc(var(--item-depth, 0) * -8px));
}

.timeline-item__index {
    font-size: 1rem;
}

.control-deck {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: stretch;
}

.deck-panel {
    display: grid;
    gap: 26px;
    padding: 26px;
    border-radius: 34px;
}

.deck-panel__screen {
    display: grid;
    gap: 18px;
    min-height: 320px;
    padding: 24px;
    border-radius: 28px;
    background:
        linear-gradient(180deg, rgba(11, 34, 52, 0.96), rgba(8, 20, 32, 0.96)),
        radial-gradient(circle at top right, rgba(124, 244, 220, 0.16), transparent 28%);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.deck-bars {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    align-items: end;
    gap: 14px;
    min-height: 220px;
}

.deck-bars span {
    display: block;
    border-radius: 999px;
    background: linear-gradient(180deg, var(--accent-strong), rgba(124, 244, 220, 0.18));
    box-shadow: 0 16px 32px rgba(60, 209, 255, 0.16);
    animation: deckPulse 5.4s ease-in-out infinite;
    transform-origin: bottom;
}

.deck-bars span:nth-child(1) { height: 34%; animation-delay: -0.4s; }
.deck-bars span:nth-child(2) { height: 58%; animation-delay: -0.8s; }
.deck-bars span:nth-child(3) { height: 76%; animation-delay: -1.2s; }
.deck-bars span:nth-child(4) { height: 48%; animation-delay: -1.6s; }
.deck-bars span:nth-child(5) { height: 86%; animation-delay: -2s; }
.deck-bars span:nth-child(6) { height: 64%; animation-delay: -2.4s; }

.deck-panel__meta {
    display: grid;
    gap: 14px;
}

.deck-highlights {
    flex-direction: column;
}

.highlight-card,
.onboarding-step {
    display: grid;
    gap: 14px;
    padding: 24px;
    border-radius: var(--radius);
}

.section-heading {
    display: grid;
    gap: 14px;
    max-width: 760px;
    margin-bottom: 12px;
}

.onboarding-grid {
    flex-wrap: wrap;
}

.onboarding-step {
    flex: 1 1 260px;
    min-height: 230px;
}

.onboarding-step span {
    color: #c8fff6;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.6rem;
    font-weight: 700;
}

.cta-band {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 28px;
    align-items: center;
    margin: 52px auto 36px;
    padding: 30px;
    border-radius: 36px;
    background:
        radial-gradient(circle at top right, rgba(124, 244, 220, 0.18), transparent 32%),
        linear-gradient(180deg, rgba(7, 20, 31, 0.98), rgba(6, 18, 28, 0.98));
}

.cta-band__copy {
    display: grid;
    gap: 14px;
}

.site-footer {
    padding: 0 0 42px;
}

.site-footer p {
    margin-bottom: 16px;
    font-size: 0.94rem;
}

.site-footer__progress {
    position: relative;
    height: 4px;
    border-radius: 999px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.08);
}

.site-footer__progress span {
    position: absolute;
    inset: 0 auto 0 0;
    width: calc(var(--page-progress) * 100%);
    border-radius: inherit;
    background: linear-gradient(90deg, var(--accent), var(--accent-strong));
}

[data-reveal] {
    opacity: 0;
    transform: translateY(36px);
    transition:
        opacity 700ms ease,
        transform 700ms ease;
}

[data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes deckPulse {
    0%,
    100% {
        transform: scaleY(0.92);
        opacity: 0.8;
    }
    50% {
        transform: scaleY(1.08);
        opacity: 1;
    }
}

@media (max-width: 1100px) {
    .site-header {
        border-radius: 28px;
    }

    .site-nav {
        display: none;
    }

    .hero {
        grid-template-columns: 1fr;
        padding-top: 56px;
    }

    .scene-card {
        min-height: 560px;
    }

    .story-grid {
        grid-template-columns: 1fr;
    }

    .story-card--wide {
        grid-column: auto;
    }

    .control-deck,
    .cta-band {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    :root {
        --container: min(100vw - 28px, 1200px);
    }

    h1 {
        font-size: clamp(2.45rem, 11vw, 3.45rem);
    }

    .site-header {
        align-items: flex-start;
        flex-direction: column;
        padding: 16px;
        border-radius: 24px;
    }

    .site-header__actions,
    .hero__actions,
    .cta-band__actions {
        width: 100%;
        flex-direction: column;
    }

    .button {
        width: 100%;
    }

    .hero {
        gap: 28px;
        padding-top: 42px;
        padding-bottom: 48px;
    }

    .hero__metrics,
    .onboarding-grid,
    .deck-highlights {
        flex-direction: column;
    }

    .scene-card {
        min-height: 520px;
        padding: 14px;
    }

    .scene-card__canvas {
        min-height: 430px;
    }

    .overlay-panel {
        position: static;
        max-width: none;
        margin-top: 12px;
    }

    .scene-card__overlay {
        display: grid;
        gap: 12px;
        inset: auto 14px 14px;
    }

    .timeline-item {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    [data-reveal] {
        opacity: 1;
        transform: none;
    }
}