:root {
    color-scheme: light;
    --docs-bg: #f4f7fb;
    --docs-surface: rgba(255, 255, 255, 0.84);
    --docs-surface-strong: #ffffff;
    --docs-ink: #14243a;
    --docs-muted: #56657c;
    --docs-line: rgba(17, 41, 72, 0.12);
    --docs-primary: #1c4fd7;
    --docs-primary-deep: #133b63;
    --docs-accent: #0d9488;
    --docs-gold: #e8a537;
    --docs-shadow: 0 20px 60px rgba(19, 42, 72, 0.12);
    --docs-shadow-soft: 0 14px 36px rgba(19, 42, 72, 0.08);
    --docs-radius-xl: 28px;
    --docs-radius-lg: 20px;
    --docs-radius-md: 14px;
    --docs-max: 1240px;
    --docs-body-font: "Aptos", "Segoe UI", "Trebuchet MS", sans-serif;
    --docs-heading-font: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--docs-body-font);
    color: var(--docs-ink);
    background:
        radial-gradient(circle at top left, rgba(28, 79, 215, 0.10), transparent 30%),
        radial-gradient(circle at top right, rgba(13, 148, 136, 0.12), transparent 28%),
        linear-gradient(180deg, #f1f6fd 0%, #f8f5ee 42%, #ffffff 100%);
    min-height: 100vh;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0.28)),
        repeating-linear-gradient(
            90deg,
            rgba(17, 41, 72, 0.025) 0,
            rgba(17, 41, 72, 0.025) 1px,
            transparent 1px,
            transparent 84px
        );
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.34), transparent 88%);
}

a {
    color: inherit;
}

.hero-shell,
.docs-shell,
.docs-footer {
    position: relative;
    z-index: 1;
}

.hero-shell {
    max-width: var(--docs-max);
    margin: 0 auto;
    padding: 28px 24px 56px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 48px;
    padding: 14px 18px;
    border: 1px solid rgba(255, 255, 255, 0.68);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(18px);
    box-shadow: var(--docs-shadow-soft);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    text-decoration: none;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--docs-primary-deep), var(--docs-primary));
    color: #ffffff;
    letter-spacing: 0.08em;
    font-size: 0.82rem;
    box-shadow: 0 14px 34px rgba(28, 79, 215, 0.26);
}

.brand-text {
    font-size: 1rem;
    letter-spacing: 0.01em;
}

.topnav {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

.topnav a {
    color: var(--docs-muted);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 600;
}

.topnav a:hover,
.topnav a:focus-visible {
    color: var(--docs-primary-deep);
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    gap: 28px;
    align-items: stretch;
}

.hero-copy,
.hero-panel {
    border: 1px solid rgba(255, 255, 255, 0.72);
    border-radius: var(--docs-radius-xl);
    background: var(--docs-surface);
    backdrop-filter: blur(16px);
    box-shadow: var(--docs-shadow);
}

.hero-copy {
    padding: 44px;
}

.eyebrow,
.section-kicker,
.panel-label,
.mini-kicker,
.feature-tag,
.scenario-label,
.index-label {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.74rem;
    font-weight: 700;
}

.eyebrow,
.panel-label,
.feature-tag,
.scenario-label {
    color: var(--docs-primary);
}

.hero-copy h1,
.section-heading h2,
.final-banner h2 {
    margin: 0;
    font-family: var(--docs-heading-font);
    line-height: 0.96;
    letter-spacing: -0.03em;
}

.hero-copy h1 {
    max-width: 12ch;
    margin-top: 14px;
    font-size: clamp(3.1rem, 5vw, 5.4rem);
}

.lead,
.section-lead,
.hero-panel-card p,
.privacy-card p,
.feature-card p,
.workflow-card p,
.spotlight-card p,
.step-card p,
.final-banner p,
.control-copy p,
.scenario-panel p,
.callout p {
    color: var(--docs-muted);
    line-height: 1.72;
}

.lead {
    max-width: 58ch;
    margin: 24px 0 0;
    font-size: 1.08rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin: 28px 0;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 20px;
    border-radius: 999px;
    font-weight: 700;
    text-decoration: none;
    transition: transform 120ms ease, box-shadow 120ms ease, background-color 120ms ease;
}

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

.button-primary {
    background: linear-gradient(135deg, var(--docs-primary-deep), var(--docs-primary));
    color: #ffffff;
    box-shadow: 0 16px 34px rgba(28, 79, 215, 0.24);
}

.button-secondary {
    border: 1px solid var(--docs-line);
    background: rgba(255, 255, 255, 0.78);
    color: var(--docs-primary-deep);
}

.hero-points {
    display: grid;
    gap: 12px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.hero-points li,
.check-list li {
    position: relative;
    padding-left: 20px;
    color: var(--docs-ink);
    line-height: 1.6;
}

.hero-points li::before,
.check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.62em;
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--docs-accent), var(--docs-primary));
}

.hero-panel {
    padding: 24px;
}

.hero-panel-card {
    padding: 24px;
    border-radius: var(--docs-radius-lg);
    background: linear-gradient(160deg, rgba(19, 59, 99, 0.96), rgba(28, 79, 215, 0.94));
    color: #ffffff;
}

.hero-panel-card h2 {
    margin: 14px 0 10px;
    font-size: 2rem;
    line-height: 1.02;
    font-family: var(--docs-heading-font);
}

.hero-panel-card p {
    color: rgba(255, 255, 255, 0.84);
}

.hero-mini-grid {
    display: grid;
    gap: 14px;
    margin-top: 16px;
}

.mini-card {
    padding: 18px;
    border: 1px solid var(--docs-line);
    border-radius: var(--docs-radius-md);
    background: rgba(255, 255, 255, 0.8);
}

.mini-card strong {
    display: block;
    margin-top: 8px;
    font-size: 1.02rem;
}

.mini-card p {
    margin: 8px 0 0;
    color: var(--docs-muted);
    line-height: 1.58;
}

.docs-shell {
    display: grid;
    grid-template-columns: minmax(220px, 0.28fr) minmax(0, 1fr);
    gap: 28px;
    max-width: var(--docs-max);
    margin: 0 auto;
    padding: 0 24px 72px;
}

.page-index {
    position: relative;
}

.index-card {
    position: sticky;
    top: 24px;
    display: grid;
    gap: 10px;
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, 0.75);
    border-radius: var(--docs-radius-lg);
    background: rgba(255, 255, 255, 0.8);
    box-shadow: var(--docs-shadow-soft);
}

.index-card a {
    color: var(--docs-muted);
    text-decoration: none;
    font-weight: 600;
    line-height: 1.45;
}

.index-card a:hover,
.index-card a:focus-visible {
    color: var(--docs-primary-deep);
}

.docs-content {
    display: grid;
    gap: 26px;
}

.content-section {
    padding: 34px;
    border: 1px solid rgba(255, 255, 255, 0.72);
    border-radius: var(--docs-radius-xl);
    background: rgba(255, 255, 255, 0.82);
    box-shadow: var(--docs-shadow-soft);
}

.section-heading {
    max-width: 860px;
}

.section-heading h2 {
    margin-top: 12px;
    font-size: clamp(2rem, 3vw, 3.4rem);
}

.section-lead {
    max-width: 72ch;
    margin: 16px 0 0;
    font-size: 1.02rem;
}

.feature-grid,
.privacy-grid,
.workflow-grid,
.steps,
.experience-grid {
    display: grid;
    gap: 18px;
    margin-top: 24px;
}

.feature-grid,
.privacy-grid,
.workflow-grid,
.experience-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-card,
.privacy-card,
.workflow-card,
.step-card,
.spotlight-card {
    padding: 24px;
    border: 1px solid var(--docs-line);
    border-radius: var(--docs-radius-lg);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(246, 249, 254, 0.92));
}

.feature-card h3,
.privacy-card h3,
.workflow-card h3,
.step-card h3,
.spotlight-card h3,
.control-copy h3,
.scenario-panel h3 {
    margin: 10px 0 10px;
    font-size: 1.26rem;
    line-height: 1.2;
    font-family: var(--docs-heading-font);
}

.callout {
    margin-top: 20px;
    padding: 22px 24px;
    border-left: 5px solid var(--docs-gold);
    border-radius: 0 var(--docs-radius-lg) var(--docs-radius-lg) 0;
    background: linear-gradient(90deg, rgba(232, 165, 55, 0.1), rgba(232, 165, 55, 0.03));
}

.callout strong {
    display: block;
    margin-bottom: 6px;
    font-size: 1rem;
}

.privacy-grid {
    margin-top: 20px;
}

.control-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.72fr);
    gap: 22px;
    margin-top: 20px;
}

.tour-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
    gap: 22px;
    margin-top: 24px;
    align-items: start;
}

.tour-figure {
    margin: 0;
    padding: 18px;
    border: 1px solid var(--docs-line);
    border-radius: calc(var(--docs-radius-lg) + 4px);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(244, 248, 253, 0.92));
    box-shadow: 0 22px 48px rgba(10, 30, 61, 0.14);
}

.tour-figure img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: var(--docs-radius-md);
    border: 1px solid rgba(16, 40, 74, 0.08);
    box-shadow: 0 18px 36px rgba(10, 30, 61, 0.14);
}

.tour-figure figcaption {
    margin-top: 14px;
    color: var(--docs-muted);
    font-size: 0.95rem;
    line-height: 1.55;
}

.tour-copy {
    display: grid;
    gap: 18px;
}

.tour-card {
    padding: 24px;
    border: 1px solid var(--docs-line);
    border-radius: var(--docs-radius-lg);
    background: rgba(255, 255, 255, 0.9);
}

.tour-card h3 {
    margin: 10px 0 10px;
    font-size: 1.26rem;
    line-height: 1.2;
    font-family: var(--docs-heading-font);
}

.tour-card p {
    margin: 0;
    color: var(--docs-ink);
}

.tour-card .check-list {
    margin-top: 14px;
}

.control-copy,
.scenario-panel {
    padding: 26px;
    border: 1px solid var(--docs-line);
    border-radius: var(--docs-radius-lg);
    background: rgba(255, 255, 255, 0.88);
}

.check-list {
    display: grid;
    gap: 12px;
    padding: 0;
    margin: 18px 0 0;
    list-style: none;
}

.scenario-panel {
    background: linear-gradient(180deg, rgba(19, 59, 99, 0.98), rgba(15, 92, 112, 0.94));
    color: #ffffff;
    box-shadow: 0 20px 40px rgba(19, 59, 99, 0.18);
}

.scenario-panel p {
    color: rgba(255, 255, 255, 0.84);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--docs-primary-deep), var(--docs-primary));
    color: #ffffff;
    font-weight: 700;
    box-shadow: 0 12px 26px rgba(28, 79, 215, 0.22);
}

.final-note {
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
}

.final-banner {
    display: grid;
    grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
    gap: 26px;
    padding: 32px 34px;
    border-radius: var(--docs-radius-xl);
    background: linear-gradient(135deg, rgba(19, 59, 99, 0.98), rgba(28, 79, 215, 0.94));
    box-shadow: 0 24px 52px rgba(19, 59, 99, 0.18);
}

.final-banner h2,
.final-banner p,
.final-banner .section-kicker {
    color: #ffffff;
}

.final-banner p {
    margin: 0;
    align-self: end;
}

.docs-footer {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    max-width: var(--docs-max);
    margin: 0 auto;
    padding: 0 24px 42px;
    color: var(--docs-muted);
}

.docs-footer p {
    margin: 8px 0 0;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

.footer-links a {
    color: var(--docs-primary-deep);
    text-decoration: none;
    font-weight: 600;
}

.footer-links a:hover,
.footer-links a:focus-visible {
    text-decoration: underline;
}

@media (max-width: 1080px) {
    .hero-grid,
    .docs-shell,
    .control-layout,
    .tour-layout,
    .final-banner {
        grid-template-columns: 1fr;
    }

    .page-index {
        display: none;
    }

    .hero-copy {
        padding: 34px;
    }
}

@media (max-width: 760px) {
    .hero-shell,
    .docs-shell,
    .docs-footer {
        padding-left: 16px;
        padding-right: 16px;
    }

    .topbar {
        border-radius: 28px;
        padding: 16px;
    }

    .topnav {
        display: none;
    }

    .hero-copy h1 {
        max-width: none;
        font-size: 2.7rem;
    }

    .content-section,
    .hero-copy,
    .hero-panel,
    .final-banner,
    .tour-figure {
        padding: 24px;
    }

    .feature-grid,
    .privacy-grid,
    .workflow-grid,
    .steps,
    .experience-grid {
        grid-template-columns: 1fr;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .button {
        width: 100%;
    }

    .docs-footer {
        flex-direction: column;
        padding-bottom: 32px;
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
        --docs-bg: #0b1625;
        --docs-surface: rgba(13, 25, 42, 0.82);
        --docs-surface-strong: rgba(13, 25, 42, 0.96);
        --docs-ink: #f3f6fb;
        --docs-muted: #b0bfd4;
        --docs-line: rgba(183, 204, 231, 0.16);
        --docs-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
        --docs-shadow-soft: 0 14px 36px rgba(0, 0, 0, 0.22);
    }

    body {
        background:
            radial-gradient(circle at top left, rgba(28, 79, 215, 0.22), transparent 28%),
            radial-gradient(circle at top right, rgba(13, 148, 136, 0.2), transparent 28%),
            linear-gradient(180deg, #091321 0%, #0c1624 44%, #101a29 100%);
    }

    body::before {
        background:
            linear-gradient(rgba(8, 15, 26, 0.18), rgba(8, 15, 26, 0.18)),
            repeating-linear-gradient(
                90deg,
                rgba(216, 226, 241, 0.03) 0,
                rgba(216, 226, 241, 0.03) 1px,
                transparent 1px,
                transparent 84px
            );
    }

    .topbar,
    .content-section,
    .index-card,
    .hero-copy,
    .hero-panel,
    .feature-card,
    .privacy-card,
    .workflow-card,
    .step-card,
    .spotlight-card,
    .control-copy,
    .tour-figure,
    .tour-card {
        border-color: rgba(183, 204, 231, 0.12);
        background: rgba(12, 22, 36, 0.84);
    }

    .button-secondary,
    .mini-card {
        background: rgba(13, 25, 42, 0.74);
    }

    .callout {
        background: linear-gradient(90deg, rgba(232, 165, 55, 0.14), rgba(232, 165, 55, 0.05));
    }
}