@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@500;600;700;800&family=Public+Sans:wght@400;500;600;700;800&display=swap');

:root {
    color-scheme: dark;
    --bg: #0a0d1d;
    --bg-soft: #11162b;
    --bg-strong: #1a1f3a;
    --surface: #13182f;
    --surface-strong: #1b2340;
    --surface-alt: #0d1227;
    --text: #eef0ff;
    --text-strong: #fffaff;
    --muted: #aab0d3;
    --muted-soft: #838bb2;
    --primary: #8b5cf6;
    --primary-dark: #e2d5ff;
    --primary-soft: rgba(139, 92, 246, 0.14);
    --primary-border: rgba(139, 92, 246, 0.24);
    --accent: #ec4899;
    --accent-soft: rgba(236, 72, 153, 0.16);
    --accent-strong: #c4b5fd;
    --border: #2d345d;
    --border-strong: #434f87;
    --shadow-sm: 0 10px 24px rgba(0, 0, 0, 0.28);
    --shadow-md: 0 22px 46px rgba(0, 0, 0, 0.36);
    --shadow-lg: 0 30px 64px rgba(0, 0, 0, 0.44);
    --brand-gradient: linear-gradient(135deg, #8b5cf6 0%, #ec4899 58%, #c084fc 100%);
    --brand-gradient-soft: linear-gradient(135deg, rgba(139, 92, 246, 0.18), rgba(236, 72, 153, 0.16), rgba(192, 132, 252, 0.18));
    --bg-glow-1: rgba(139, 92, 246, 0.18);
    --bg-glow-2: rgba(236, 72, 153, 0.16);
    --bg-glow-3: rgba(192, 132, 252, 0.12);
    --radius-sm: 12px;
    --radius-md: 18px;
    --radius-lg: 24px;
    --max-width: 1200px;
    --transition: 0.22s ease;
}

:root[data-theme="light"] {
    color-scheme: light;
    --bg: #fcf8ff;
    --bg-soft: #f6efff;
    --bg-strong: #ffffff;
    --surface: #fffafe;
    --surface-strong: #ffffff;
    --surface-alt: #f8f1ff;
    --text: #221b35;
    --text-strong: #171023;
    --muted: #675f7e;
    --muted-soft: #8a829f;
    --primary: #6d28d9;
    --primary-dark: #5b21b6;
    --primary-soft: rgba(109, 40, 217, 0.1);
    --primary-border: rgba(109, 40, 217, 0.18);
    --accent: #db2777;
    --accent-soft: rgba(219, 39, 119, 0.12);
    --accent-strong: #9333ea;
    --border: #eadcf8;
    --border-strong: #d3b9f2;
    --shadow-sm: 0 8px 22px rgba(16, 18, 20, 0.05);
    --shadow-md: 0 18px 38px rgba(16, 18, 20, 0.08);
    --shadow-lg: 0 26px 58px rgba(16, 18, 20, 0.12);
    --brand-gradient: linear-gradient(135deg, #6d28d9 0%, #db2777 60%, #c084fc 100%);
    --brand-gradient-soft: linear-gradient(135deg, rgba(109, 40, 217, 0.12), rgba(219, 39, 119, 0.1), rgba(192, 132, 252, 0.14));
    --bg-glow-1: rgba(109, 40, 217, 0.14);
    --bg-glow-2: rgba(219, 39, 119, 0.12);
    --bg-glow-3: rgba(192, 132, 252, 0.12);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: 'Public Sans', sans-serif;
    line-height: 1.65;
    color: var(--text);
    background:
        radial-gradient(circle at 12% 0%, var(--bg-glow-1), transparent 28%),
        radial-gradient(circle at 100% 0%, var(--bg-glow-2), transparent 24%),
        linear-gradient(180deg, #0d1125 0%, #090d1a 46%, #060812 100%);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at 15% 18%, var(--bg-glow-3), transparent 20%),
        radial-gradient(circle at 84% 16%, rgba(255, 255, 255, 0.06), transparent 24%);
    pointer-events: none;
}

img {
    display: block;
    max-width: 100%;
    border-radius: 18px;
}

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

button,
input,
select,
textarea {
    font: inherit;
}

h1,
h2,
h3,
h4,
.logo,
.btn,
.badge {
    font-family: 'Plus Jakarta Sans', sans-serif;
}

.container {
    width: min(var(--max-width), calc(100% - 2rem));
    margin: 0 auto;
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    min-height: 44px;
    padding: 0.55rem 0.85rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(13, 18, 39, 0.72);
    color: var(--text);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition), color var(--transition);
    flex-shrink: 0;
}

.theme-toggle:hover {
    transform: translateY(-1px);
    border-color: var(--border-strong);
    box-shadow: var(--shadow-md);
}

.theme-toggle:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.14);
}

.theme-toggle-track {
    position: relative;
    width: 2.9rem;
    height: 1.55rem;
    border-radius: 999px;
    background: var(--brand-gradient-soft);
    box-shadow: inset 0 0 0 1px var(--primary-border);
}

.theme-toggle-knob {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 1.15rem;
    height: 1.15rem;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.28);
    transition: transform var(--transition), background var(--transition);
}

.theme-toggle.is-light .theme-toggle-knob {
    transform: translateX(1.35rem);
    background: var(--accent-strong);
}

.theme-toggle-label {
    font-size: 0.9rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

:root[data-theme="light"] body {
    background:
        radial-gradient(circle at 0% 0%, var(--bg-glow-1), transparent 26%),
        radial-gradient(circle at 100% 0%, var(--bg-glow-2), transparent 24%),
        linear-gradient(180deg, #fefaff 0%, #fcf7ff 44%, #f6eeff 100%);
}

:root[data-theme="light"] body::before {
    background:
        radial-gradient(circle at 12% 12%, var(--bg-glow-3), transparent 22%),
        radial-gradient(circle at 86% 16%, rgba(255, 255, 255, 0.62), transparent 24%);
}

:root[data-theme="light"] .site-header {
    background: rgba(254, 250, 255, 0.92);
    border-bottom: 1px solid rgba(109, 40, 217, 0.14);
    box-shadow: 0 10px 28px rgba(16, 18, 20, 0.05);
}

:root[data-theme="light"] .nav a:hover {
    background: rgba(255, 255, 255, 0.92);
    box-shadow: inset 0 0 0 1px rgba(109, 40, 217, 0.16);
}

:root[data-theme="light"] .nav a.active {
    background: var(--brand-gradient-soft);
    box-shadow: inset 0 0 0 1px rgba(109, 40, 217, 0.18);
    color: var(--text-strong);
}

:root[data-theme="light"] .hero::before,
:root[data-theme="light"] .page-hero::before {
    background:
        radial-gradient(circle at 8% 16%, rgba(109, 40, 217, 0.12), transparent 24%),
        radial-gradient(circle at 90% 0%, rgba(219, 39, 119, 0.12), transparent 24%);
}

:root[data-theme="light"] .badge {
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid rgba(219, 39, 119, 0.2);
}

:root[data-theme="light"] .btn-primary {
    background: var(--brand-gradient);
    color: #fffaff;
    border-color: rgba(255, 255, 255, 0.36);
    box-shadow: 0 16px 30px rgba(219, 39, 119, 0.18);
}

:root[data-theme="light"] .btn-primary:hover {
    box-shadow: 0 20px 34px rgba(219, 39, 119, 0.24);
}

:root[data-theme="light"] .btn-secondary,
:root[data-theme="light"] .theme-toggle,
:root[data-theme="light"] .copy-action {
    background: rgba(255, 255, 255, 0.92);
}

:root[data-theme="light"] .theme-toggle:focus-visible {
    box-shadow: 0 0 0 4px rgba(109, 40, 217, 0.12);
}

:root[data-theme="light"] .section-alt {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.45), rgba(109, 40, 217, 0.04) 45%, rgba(219, 39, 119, 0.08));
    border-top: 1px solid rgba(109, 40, 217, 0.14);
    border-bottom: 1px solid rgba(219, 39, 119, 0.14);
}

:root[data-theme="light"] table th {
    background: #f7ebff;
}

:root[data-theme="light"] table tr:hover td {
    background: rgba(109, 40, 217, 0.06);
}

:root[data-theme="light"] input,
:root[data-theme="light"] select,
:root[data-theme="light"] textarea {
    background: #ffffff;
}

:root[data-theme="light"] input:focus,
:root[data-theme="light"] select:focus,
:root[data-theme="light"] textarea:focus {
    background: #ffffff;
    border-color: rgba(109, 40, 217, 0.42);
    box-shadow: 0 0 0 4px rgba(109, 40, 217, 0.12);
}

:root[data-theme="light"] .message-box {
    border: 1px solid rgba(109, 40, 217, 0.18);
    background: rgba(250, 243, 255, 0.92);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 13, 29, 0.88);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(139, 92, 246, 0.16);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.32);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 76px;
    gap: 1rem;
}

.logo {
    font-size: 1.04rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-strong);
}

.nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.nav a {
    padding: 0.8rem 1rem;
    border-radius: 999px;
    color: var(--muted);
    font-weight: 700;
    transition: color var(--transition), background var(--transition), box-shadow var(--transition);
}

.nav a:hover {
    background: var(--primary-soft);
    color: var(--text);
    box-shadow: inset 0 0 0 1px var(--primary-border);
}

.nav a.active {
    background: var(--brand-gradient-soft);
    color: var(--text-strong);
    box-shadow: inset 0 0 0 1px rgba(192, 132, 252, 0.18);
}

.hero,
.page-hero {
    position: relative;
}

.hero {
    padding: 5rem 0 4rem;
}

.page-hero {
    padding: 3.6rem 0 1.35rem;
}

.hero::before,
.page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 8% 16%, rgba(139, 92, 246, 0.14), transparent 24%),
        radial-gradient(circle at 90% 0%, rgba(236, 72, 153, 0.12), transparent 24%);
    pointer-events: none;
}

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

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 2rem;
    align-items: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.55rem 0.9rem;
    margin-bottom: 1rem;
    border-radius: 999px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(236, 72, 153, 0.24);
    color: var(--accent-strong);
    box-shadow: var(--shadow-sm);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero h1,
.page-hero h1 {
    margin: 0 0 1rem;
    color: var(--text-strong);
    font-size: clamp(2.45rem, 4.4vw, 4.15rem);
    line-height: 1.04;
    letter-spacing: -0.05em;
    max-width: 14ch;
}

.hero-text,
.page-hero p {
    max-width: 760px;
    margin: 0;
    color: var(--muted);
    font-size: 1.05rem;
}

.hero-actions,
.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.95rem;
    margin-top: 1.85rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 48px;
    padding: 0.9rem 1.3rem;
    border: none;
    border-radius: 14px;
    font-weight: 800;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
}

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

.btn-primary {
    background: var(--brand-gradient);
    color: #fffaff;
    border: 1px solid rgba(255, 255, 255, 0.22);
    box-shadow: 0 16px 30px rgba(236, 72, 153, 0.2);
}

.btn-primary:hover {
    box-shadow: 0 20px 34px rgba(236, 72, 153, 0.28);
}

.btn-secondary {
    background: var(--primary-soft);
    color: var(--text);
    border: 1px solid var(--primary-border);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--brand-gradient-soft);
    border-color: rgba(192, 132, 252, 0.24);
}

.meta-card,
.card,
.content-card,
.form-card,
.stat-box,
.info-block,
.hero-card {
    position: relative;
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.meta-card::before,
.card::before,
.content-card::before,
.form-card::before,
.stat-box::before,
.info-block::before,
.hero-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--brand-gradient);
}

.hero-card {
    border-radius: var(--radius-lg);
}

.hero-card img {
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: 0;
    border-bottom: 1px solid var(--border);
}

.hero-card-content {
    padding: 1.45rem 1.45rem 1.55rem;
}

.hero-card-content h3 {
    margin: 0 0 0.8rem;
    color: var(--text-strong);
    font-size: 1.08rem;
    letter-spacing: -0.03em;
}

.hero-card-content ul {
    margin: 0;
    padding-left: 1rem;
    color: var(--muted);
}

.quick-meta {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}

.meta-card,
.card,
.content-card,
.info-block,
.form-card {
    padding: 1.55rem;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.meta-card {
    text-align: center;
}

.meta-card:hover,
.card:hover,
.content-card:hover,
.info-block:hover,
.stat-box:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-border);
}

.meta-card h3,
.stat-box h2 {
    margin: 0;
    color: var(--text-strong);
    letter-spacing: -0.04em;
}

.meta-card h3 {
    font-size: 1.45rem;
}

.meta-card p,
.card p,
.content-card p,
.info-block p,
.stat-box p {
    color: var(--muted);
}

.meta-card p {
    margin: 0.3rem 0 0;
    font-weight: 700;
}

.section {
    padding: 4.5rem 0;
}

.section-alt {
    background: linear-gradient(180deg, rgba(139, 92, 246, 0.06), rgba(236, 72, 153, 0.05) 42%, rgba(10, 13, 29, 0.92));
    border-top: 1px solid rgba(139, 92, 246, 0.12);
    border-bottom: 1px solid rgba(236, 72, 153, 0.14);
}

.section-heading {
    margin-bottom: 2rem;
}

.section-heading h2 {
    margin: 0 0 0.65rem;
    color: var(--text-strong);
    font-size: clamp(1.75rem, 3vw, 2.35rem);
    letter-spacing: -0.04em;
}

.section-heading p {
    max-width: 760px;
    margin: 0;
    color: var(--muted);
}

.card-grid,
.content-grid,
.two-col {
    display: grid;
    gap: 1.5rem;
}

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

.content-grid,
.two-col {
    grid-template-columns: repeat(2, 1fr);
}

.card h3,
.content-card h2,
.info-block h3 {
    margin: 0 0 0.65rem;
    color: var(--text-strong);
    letter-spacing: -0.03em;
}

.card p,
.content-card p,
.info-block p {
    margin: 0;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 0.9rem;
    color: var(--primary-dark);
    font-weight: 800;
}

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

.page-shell {
    min-height: 70vh;
}

.content-card.wide {
    grid-column: span 2;
}

.table-wrapper {
    overflow-x: auto;
    margin-top: 0.9rem;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--surface-alt);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
}

table th,
table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

table th {
    background: rgba(20, 22, 48, 0.96);
    color: var(--text-strong);
    font-size: 0.92rem;
}

table td {
    color: var(--muted);
}

table tr:hover td {
    background: var(--primary-soft);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.stat-box {
    padding: 1.65rem 1.3rem 1.45rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    text-align: left;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.stat-box h2 {
    margin: 0;
    font-size: 2rem;
    letter-spacing: -0.05em;
}

.stat-box p {
    margin: 0;
}

.stat-overline {
    color: var(--accent-strong);
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.stat-label {
    color: var(--text-strong);
    font-weight: 800;
}

.stat-detail {
    color: var(--muted);
    font-size: 0.94rem;
    line-height: 1.55;
}

.stats-spotlight {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 1.35rem;
    align-items: start;
}

.stats-spotlight h2,
.stats-card-heading h2 {
    margin: 0 0 0.55rem;
    color: var(--text-strong);
    letter-spacing: -0.04em;
}

.stats-spotlight-copy p,
.stats-card-heading p,
.stats-note-paragraph {
    margin: 0;
    color: var(--muted);
}

.stats-card-heading {
    display: grid;
    gap: 0.35rem;
    margin-bottom: 1rem;
}

.stats-highlight-list,
.stats-note-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.75rem;
}

.stats-highlight-list li,
.stats-note-list li {
    padding: 0.95rem 1rem;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--surface-alt);
}

.stats-highlight-list li {
    color: var(--text);
    font-weight: 700;
}

.stats-note-list li {
    color: var(--muted);
    line-height: 1.6;
}

.split-list {
    display: grid;
    gap: 0.9rem;
}

.split-item {
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--surface-alt);
}

.split-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.split-label,
.split-share {
    font-weight: 800;
}

.split-label {
    color: var(--text-strong);
}

.split-share {
    color: var(--accent-strong);
}

.split-track {
    height: 0.7rem;
    margin-top: 0.8rem;
    overflow: hidden;
    border-radius: 999px;
    background: var(--accent-soft);
}

.split-fill {
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--accent), var(--accent-strong));
}

.split-note {
    margin: 0.7rem 0 0;
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.55;
}

.meta-pill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.meta-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.8rem 0.95rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface-alt);
    color: var(--text);
    font-weight: 700;
    line-height: 1.45;
}

.class-card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.class-breakdown-card {
    padding: 1.2rem;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--surface-alt);
}

.class-breakdown-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.class-breakdown-card h3 {
    margin: 0;
    color: var(--text-strong);
    letter-spacing: -0.03em;
}

.class-role {
    display: inline-flex;
    align-items: center;
    margin: 0.8rem 0 0;
    padding: 0.42rem 0.72rem;
    border: 1px solid var(--primary-border);
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--accent-strong);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.01em;
}

.class-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.3rem;
    height: 2.3rem;
    padding: 0 0.6rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--text-strong);
    font-weight: 800;
}

.class-description {
    margin: 1rem 0 0;
    color: var(--muted);
    line-height: 1.65;
}

.plain-list {
    margin: 0;
    padding-left: 1rem;
    color: var(--muted);
}

.plain-list li + li {
    margin-top: 0.45rem;
}

.top-gap {
    margin-top: 1.5rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: span 2;
}

label {
    margin-bottom: 0.55rem;
    color: var(--text-strong);
    font-weight: 800;
    letter-spacing: -0.01em;
}

input,
select,
textarea {
    min-height: 48px;
    padding: 0.9rem 1rem;
    background: #121731;
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 14px;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

input:hover,
select:hover,
textarea:hover {
    border-color: var(--border-strong);
}

input:focus,
select:focus,
textarea:focus {
    background: #171d3b;
    border-color: rgba(139, 92, 246, 0.45);
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.12);
}

.message-box {
    margin-top: 1.15rem;
    padding: 1rem 1.1rem;
    border: 1px solid var(--primary-border);
    border-left: 4px solid var(--accent);
    border-radius: 14px;
    background: var(--brand-gradient-soft);
    color: var(--muted);
}

.citation-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.eyebrow {
    margin: 0 0 0.35rem;
    color: var(--accent-strong);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.copy-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    min-width: 8.5rem;
    min-height: 46px;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: #121731;
    color: var(--text);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
}

.copy-action:hover {
    transform: translateY(-1px);
    border-color: var(--border-strong);
    box-shadow: var(--shadow-md);
}

.copy-action:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.12);
}

.copy-action.is-copied {
    background: var(--brand-gradient-soft);
    border-color: rgba(192, 132, 252, 0.24);
    color: var(--text-strong);
}

.copy-icon {
    display: inline-flex;
    width: 1rem;
    height: 1rem;
}

.copy-feedback {
    min-height: 1.4rem;
    margin: 0.85rem 0 0;
    color: var(--accent-strong);
    font-weight: 700;
}

.code-block {
    margin: 0;
    padding: 1.1rem 1.2rem;
    overflow-x: auto;
    border-radius: 16px;
    background: linear-gradient(180deg, #171d3b, #0b0f21);
    color: #fffaff;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.site-footer {
    margin-top: 4rem;
    padding: 3rem 0;
    background:
        radial-gradient(circle at top right, rgba(236, 72, 153, 0.18), transparent 24%),
        radial-gradient(circle at 0% 0%, rgba(139, 92, 246, 0.16), transparent 28%),
        linear-gradient(180deg, #0b0f21 0%, #060811 100%);
    color: #eef0ff;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 2rem;
}

.site-footer h3,
.site-footer h4 {
    margin-top: 0;
    color: #fffaff;
    letter-spacing: -0.03em;
}

.site-footer p,
.site-footer li {
    color: rgba(238, 240, 255, 0.78);
}

.site-footer ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-contacts {
    display: grid;
    gap: 0.9rem;
}

.footer-contact-item {
    padding: 0.85rem 0.95rem;
    border: 1px solid rgba(139, 92, 246, 0.18);
    border-radius: 14px;
    background: rgba(139, 92, 246, 0.1);
}

.footer-contact-role {
    margin: 0 0 0.3rem;
    color: var(--text-strong);
    font-weight: 700;
}

.footer-contact-item a {
    color: var(--accent-strong);
    font-weight: 600;
}

.footer-contact-item a:hover {
    color: #fffaff;
}

.site-footer li + li {
    margin-top: 0.55rem;
}

.site-footer a {
    color: #f5d7ff;
    transition: color var(--transition);
}

.site-footer a:hover {
    color: #fffaff;
}

.hero-grid > *,
.page-hero .container,
.card,
.content-card,
.stat-box,
.info-block,
.form-card,
.meta-card {
    animation: rise-in 0.52s ease both;
}

@keyframes rise-in {
    from {
        opacity: 0;
        transform: translateY(14px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

    .hero-grid > *,
    .page-hero .container,
    .card,
    .content-card,
    .stat-box,
    .info-block,
    .form-card,
    .meta-card {
        animation: none;
    }

    .btn,
    .card,
    .content-card,
    .info-block,
    .meta-card,
    .stat-box,
    .copy-action,
    .nav a,
    input,
    select,
    textarea {
        transition: none;
    }
}

@media (max-width: 1024px) {
    .hero-grid,
    .card-grid,
    .content-grid,
    .stats-grid,
    .quick-meta,
    .footer-grid,
    .two-col {
        grid-template-columns: 1fr 1fr;
    }

    .content-card.wide,
    .form-group.full-width {
        grid-column: span 2;
    }

    .class-card-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hero-grid,
    .card-grid,
    .content-grid,
    .stats-grid,
    .quick-meta,
    .footer-grid,
    .two-col,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .content-card.wide,
    .form-group.full-width {
        grid-column: span 1;
    }

    .nav-wrapper {
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem 0;
    }

    .nav {
        width: 100%;
    }

    .hero {
        padding: 3rem 0 2.5rem;
    }

    .hero h1,
    .page-hero h1 {
        line-height: 1.08;
    }

    .btn,
    .copy-action,
    .theme-toggle {
        width: 100%;
    }

    .hero-actions,
    .button-row {
        flex-direction: column;
    }

    .theme-toggle {
        justify-content: space-between;
    }

    .stats-spotlight,
    .class-card-grid {
        grid-template-columns: 1fr;
    }

    .split-row,
    .class-breakdown-header {
        flex-direction: column;
        align-items: flex-start;
    }
}