:root {
    --color-primary: #0f172a;
    --color-primary-dark: #020617;
    --color-accent: #2563eb;
    --color-accent-dark: #1d4ed8;
    --color-accent-deep: #1e40af;
    --color-accent-soft: #dbeafe;
    --color-surface: #ffffff;
    --color-surface-muted: #f8fafc;
    --color-surface-warm: #f1f5f9;
    --color-text: #0f172a;
    --color-muted: #64748b;
    --color-border: #e2e8f0;
    --docs-bg: #f8fafc;
    --docs-panel: #ffffff;
    --docs-panel-soft: #f8fafc;
    --docs-text: #334155;
    --docs-heading: #0f172a;
    --docs-link: #1d4ed8;
    --docs-code-bg: #eef6ff;
    --docs-code-text: #1e3a8a;
    --docs-note-bg: #f0f9ff;
    --docs-note-border: #bae6fd;
    --docs-note-text: #075985;
    --docs-warning-bg: #fffbeb;
    --docs-warning-border: #fde68a;
    --docs-warning-text: #92400e;
    --shadow-lg: 0 28px 70px rgba(15, 23, 42, 0.13);
    --shadow-md: 0 14px 36px rgba(15, 23, 42, 0.08);
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: #f8fafc;
    color: var(--color-text);
    line-height: 1.65;
    margin: 0;
}

a {
    color: #1d4ed8;
    text-decoration: none;
}

a:hover {
    color: #0f172a;
}

.btn {
    transition:
        transform 0.18s ease,
        box-shadow 0.18s ease,
        border-color 0.18s ease,
        background-color 0.18s ease,
        color 0.18s ease;
}

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

::selection {
    background: #bfdbfe;
    color: #0f172a;
}

.navbar {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--color-border);
    padding: 0.85rem 0;
    transition: background 0.3s ease;
}

.navbar.fixed-top {
    position: sticky;
}

.navbar .navbar-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    font-family: "Space Grotesk", "Inter", system-ui, sans-serif;
    font-weight: 700;
    color: var(--color-text);
}

.brand-logo {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    background: #fff;
    object-fit: cover;
}

.navbar .nav-link {
    color: #475569;
    font-weight: 500;
    margin-left: 0.95rem;
    border-radius: 10px;
    padding-inline: 0.65rem;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus,
.navbar .nav-link.active {
    color: var(--color-text);
    background: #f1f5f9;
}

.navbar .btn-outline-light {
    border-color: #cbd5e1;
    border-width: 1px;
    color: #334155;
    background: #fff;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}

.navbar .btn-outline-light:hover,
.navbar .btn-outline-light:focus {
    border-color: #94a3b8;
    color: #0f172a;
    background: #f1f5f9;
}

.navbar .navbar-toggler {
    border-color: var(--color-border);
    background: var(--color-text);
}

.navbar .navbar-toggler:focus {
    box-shadow: none;
}

main {
    padding-top: 0;
}

.hero {
    position: relative;
    background:
        radial-gradient(circle at 82% 18%, rgba(37, 99, 235, 0.12), transparent 33%),
        radial-gradient(circle at 8% 90%, rgba(14, 165, 233, 0.08), transparent 30%),
        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 5.25rem 0 5rem;
    overflow: hidden;
}

.hero::after {
    content: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-copy h1 {
    font-family: "Space Grotesk", "Inter", system-ui, sans-serif;
    font-size: clamp(2.6rem, 5vw, 4.4rem);
    font-weight: 700;
    line-height: 1.02;
    margin: 1rem 0;
}

.hero-copy p.lead {
    color: #475569;
    font-size: 1.08rem;
    line-height: 1.8;
}

.badge-gradient {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    padding: 0.45rem 0.8rem;
    font-size: 0.74rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #475569;
    background: rgba(255, 255, 255, 0.82);
    box-shadow: var(--shadow-sm);
}

.hero-actions .btn {
    padding-inline: 1.6rem;
    padding-block: 0.75rem;
    font-weight: 600;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}

.hero-actions .btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.hero-actions .btn-light,
.btn-primary {
    border-color: var(--color-accent);
    background:
        linear-gradient(180deg, #3b82f6 0%, var(--color-accent) 100%);
    color: #fff;
    box-shadow: 0 14px 28px rgba(37, 99, 235, 0.24);
}

.hero-actions .btn-light:hover,
.btn-primary:hover,
.btn-primary:focus {
    border-color: var(--color-accent-dark);
    background:
        linear-gradient(180deg, #2563eb 0%, var(--color-accent-dark) 100%);
    color: #fff;
}

.hero-actions .btn-outline-light {
    border-color: #bfdbfe;
    color: var(--color-accent-deep);
    background: #eff6ff;
    box-shadow: var(--shadow-sm);
}

.hero-actions .btn-outline-light:hover,
.hero-actions .btn-outline-light:focus {
    border-color: #93c5fd;
    color: #1e3a8a;
    background: #dbeafe;
}

.hero-list {
    margin: 1.5rem 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.85rem;
    color: #475569;
}

.hero-list li {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
}

.hero-list .bi {
    color: var(--color-accent);
}

.hero-preview {
    background:
        linear-gradient(180deg, rgba(15, 23, 42, 0.96), #020617);
    border-radius: 20px;
    padding: 1.25rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid #1e293b;
}

.hero-preview pre,
.code-section pre {
    margin-bottom: 0;
}

.hero-preview h6 {
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 600;
    color: #94a3b8;
}

.hero-note {
    border-radius: 14px;
    padding: 1.4rem;
    background: rgba(15, 23, 42, 0.72);
    border: 1px solid #1e293b;
    color: #cbd5e1;
}

.section-heading {
    max-width: 780px;
}

.section-heading .eyebrow {
    display: inline-block;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #2563eb;
    margin-bottom: 0.6rem;
}

.section-heading h1,
.section-heading h2 {
    font-family: "Space Grotesk", "Inter", system-ui, sans-serif;
    font-weight: 700;
    margin-bottom: 1rem;
}

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

main > section.py-5 {
    border-top: 1px solid rgba(226, 232, 240, 0.75);
    background: #fff;
}

main > section.py-5:nth-of-type(odd) {
    background: #f8fafc;
}

.feature-card,
.doc-card,
.workflow-step {
    border-radius: 18px;
    border: 1px solid var(--color-border);
    padding: 1.9rem;
    height: 100%;
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
    transition:
        border-color 0.18s ease,
        box-shadow 0.18s ease,
        transform 0.18s ease;
}

.feature-card:hover,
.doc-card:hover,
.workflow-step:hover {
    border-color: #cbd5e1;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.feature-card .icon,
.doc-card .icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    color: var(--color-accent);
    background: var(--color-accent-soft);
    margin-bottom: 1.2rem;
}

.feature-card h5,
.doc-card h5 {
    font-family: "Space Grotesk", "Inter", system-ui, sans-serif;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.feature-card p,
.doc-card p {
    color: var(--color-muted);
    margin: 0;
}

.workflow-step span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-weight: 600;
    background: #0f172a;
    color: #fff;
    margin-bottom: 1rem;
}

.code-section {
    background:
        linear-gradient(180deg, rgba(15, 23, 42, 0.98), #020617);
    border: 1px solid #1e293b;
    border-radius: 18px;
    padding: 1.5rem;
    color: #e2e8f0;
    box-shadow: var(--shadow-lg);
}

.code-section h5 {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.75rem;
    color: rgba(226, 232, 240, 0.82);
}

.code-section .bi {
    font-size: 1.25rem;
    color: var(--color-accent);
}

pre {
    border-radius: 12px;
    overflow-x: auto;
}

pre code {
    white-space: pre;
}

.doc-content pre {
    background: #020617;
    border: 1px solid #1e293b;
    color: #e2e8f0;
    padding: 1rem;
    box-shadow: var(--shadow-sm);
}

.doc-content pre code {
    color: inherit;
    background: transparent;
}

.cta {
    background:
        radial-gradient(circle at 88% 18%, rgba(37, 99, 235, 0.34), transparent 30%),
        #0f172a;
    border-radius: 22px;
    padding: 3rem;
    color: #f8fafc;
    box-shadow: var(--shadow-md);
}

.cta .btn {
    font-weight: 600;
    border-radius: 10px;
    padding-inline: 1.5rem;
    padding-block: 0.75rem;
}

.cta .btn-light {
    border-color: #ffffff;
    background: #ffffff;
    color: #0f172a;
    box-shadow: 0 16px 34px rgba(2, 6, 23, 0.2);
}

.cta .btn-light:hover,
.cta .btn-light:focus {
    border-color: #bfdbfe;
    background: #eff6ff;
    color: #1e3a8a;
}

.cta .btn-outline-light {
    border-color: rgba(191, 219, 254, 0.5);
    color: #dbeafe;
    background: rgba(255, 255, 255, 0.06);
}

.cta .btn-outline-light:hover,
.cta .btn-outline-light:focus {
    border-color: #bfdbfe;
    color: #ffffff;
    background: rgba(37, 99, 235, 0.22);
}

.page-hero {
    background:
        radial-gradient(circle at 86% 12%, rgba(14, 165, 233, 0.1), transparent 30%),
        linear-gradient(180deg, #ffffff 0%, var(--docs-bg) 100%);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 4rem 0 3rem;
}

.page-hero h1 {
    font-family: "Space Grotesk", "Inter", system-ui, sans-serif;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-hero p {
    color: #526178;
    max-width: 760px;
}

.docs-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 3rem;
}

.doc-content {
    max-width: 820px;
    background: var(--docs-panel);
    border: 1px solid #e5edf6;
    border-radius: 20px;
    padding: 2.25rem;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
}

.doc-content h2 {
    font-family: "Space Grotesk", "Inter", system-ui, sans-serif;
    font-size: 1.45rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--docs-heading);
}

.doc-content h3 {
    font-family: "Space Grotesk", "Inter", system-ui, sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    margin-top: 1.75rem;
    color: var(--docs-heading);
}

.doc-content p,
.doc-content li {
    color: var(--docs-text);
    line-height: 1.75;
}

.doc-content a {
    color: var(--docs-link);
    font-weight: 500;
}

.doc-content a:hover {
    color: #0f172a;
}

.doc-content code:not(pre code) {
    color: var(--docs-code-text);
    background: var(--docs-code-bg);
    border-radius: 6px;
    padding: 0.12rem 0.34rem;
}

.doc-content .alert {
    border-radius: 14px;
    border-width: 1px;
    box-shadow: var(--shadow-sm);
}

.doc-content .alert-primary {
    background: var(--docs-note-bg);
    border-color: var(--docs-note-border);
    color: var(--docs-note-text);
}

.doc-content .alert-warning {
    background: var(--docs-warning-bg);
    border-color: var(--docs-warning-border);
    color: var(--docs-warning-text);
}

.docs-sidebar {
    align-self: start;
    position: sticky;
    top: 6rem;
}

.docs-sidebar .list-group {
    border-radius: 14px;
    border: 1px solid #e5edf6;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.docs-sidebar .list-group-item {
    border-color: #e5edf6;
    color: #475569;
    font-weight: 500;
    padding: 0.85rem 1rem;
    background: #fff;
}

.docs-sidebar .list-group-item:hover,
.docs-sidebar .list-group-item:focus {
    color: #0f172a;
    background: var(--docs-panel-soft);
}

.docs-sidebar .list-group-item.active {
    background: #eff6ff;
    border-color: #bfdbfe;
    color: #1e3a8a;
}

.status-note {
    background: var(--docs-note-bg);
    border: 1px solid var(--docs-note-border);
    border-radius: 14px;
    color: var(--docs-note-text);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-sm);
}

footer {
    margin-top: 0;
    border-top: 1px solid var(--color-border);
    padding: 2rem 0 3rem;
    color: var(--color-muted);
    background: #f8fafc;
}

footer a {
    color: inherit;
}

footer a:hover {
    color: var(--color-primary);
}

@media (max-width: 991px) {
    .navbar {
        background: rgba(255, 255, 255, 0.96);
    }

    .navbar-collapse {
        background: #fff;
        border: 1px solid var(--color-border);
        border-radius: 14px;
        padding: 1rem;
        margin-top: 0.75rem;
        box-shadow: var(--shadow-md);
    }

    .hero {
        padding: 4.75rem 0 4.5rem;
    }

    .hero-preview {
        margin-top: 2.5rem;
    }

    .code-section {
        padding: 2.25rem;
    }

    .docs-layout {
        grid-template-columns: 1fr;
    }

    .docs-sidebar {
        position: static;
        order: -1;
    }

    .doc-content {
        max-width: none;
    }
}

@media (max-width: 767px) {
    .hero {
        padding: 4rem 0 3.5rem;
    }

    .feature-card,
    .doc-card,
    .workflow-step {
        padding: 1.5rem;
    }

    .cta {
        padding: 2rem;
    }

    .page-hero {
        padding: 3.25rem 0 2.25rem;
    }

    .doc-content {
        padding: 1.35rem;
        border-radius: 16px;
    }
}