:root {
    --bg: #f5f7fb;
    --bg-soft: #eef2f8;
    --surface: rgba(255, 255, 255, 0.78);
    --surface-strong: #ffffff;
    --surface-muted: #e9eef8;
    --text: #162033;
    --text-soft: #46556f;
    --text-faint: #64728c;
    --line: rgba(17, 31, 57, 0.12);
    --brand: #0c5fe6;
    --brand-soft: #dce9ff;
    --accent: #f39c12;
    --accent-soft: #fff1d5;
    --success: #0f9f6e;
    --success-soft: #d8f7eb;
    --danger: #d04d62;
    --shadow: 0 18px 48px rgba(14, 21, 37, 0.12);
    --radius-lg: 24px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --container-max: 1180px;
}

html[data-theme="dark"] {
    --bg: #09101b;
    --bg-soft: #111b2b;
    --surface: rgba(17, 27, 43, 0.8);
    --surface-strong: #121c2d;
    --surface-muted: #162338;
    --text: #edf3ff;
    --text-soft: #b3c0d7;
    --text-faint: #93a0ba;
    --line: rgba(235, 242, 255, 0.1);
    --brand: #7db3ff;
    --brand-soft: rgba(125, 179, 255, 0.12);
    --accent: #ffb547;
    --accent-soft: rgba(255, 181, 71, 0.15);
    --success: #64d5aa;
    --success-soft: rgba(100, 213, 170, 0.15);
    --danger: #ff8b9f;
    --shadow: 0 20px 56px rgba(0, 0, 0, 0.34);
}

@media (prefers-color-scheme: dark) {
    html[data-theme="system"] {
        --bg: #09101b;
        --bg-soft: #111b2b;
        --surface: rgba(17, 27, 43, 0.8);
        --surface-strong: #121c2d;
        --surface-muted: #162338;
        --text: #edf3ff;
        --text-soft: #b3c0d7;
        --text-faint: #93a0ba;
        --line: rgba(235, 242, 255, 0.1);
        --brand: #7db3ff;
        --brand-soft: rgba(125, 179, 255, 0.12);
        --accent: #ffb547;
        --accent-soft: rgba(255, 181, 71, 0.15);
        --success: #64d5aa;
        --success-soft: rgba(100, 213, 170, 0.15);
        --danger: #ff8b9f;
        --shadow: 0 20px 56px rgba(0, 0, 0, 0.34);
    }
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at 0% 0%, rgba(12, 95, 230, 0.08), transparent 35%),
        radial-gradient(circle at 100% 0%, rgba(243, 156, 18, 0.08), transparent 25%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
    color: var(--text);
    font: 15.5px/1.55 "Segoe UI", "Trebuchet MS", sans-serif;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4 {
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    letter-spacing: -0.02em;
}

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

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

button {
    cursor: pointer;
}

img {
    max-width: 100%;
}

.site-shell {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
    overflow: clip;
}

.ambient {
    position: fixed;
    inset: auto;
    pointer-events: none;
    filter: blur(90px);
    opacity: 0.45;
    z-index: 0;
}

.ambient-one {
    width: 320px;
    height: 320px;
    top: 8%;
    left: -80px;
    background: rgba(12, 95, 230, 0.24);
}

.ambient-two {
    width: 380px;
    height: 380px;
    right: -120px;
    bottom: 12%;
    background: rgba(243, 156, 18, 0.18);
}

.container {
    width: calc(100vw - 32px);
    max-width: var(--container-max);
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    background: rgba(245, 247, 251, 0.92);
    background: color-mix(in srgb, var(--bg) 72%, transparent);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 10px 34px rgba(14, 21, 37, 0.06);
}

.topbar-inner,
.hero-grid,
.split-section,
.content-with-sidebar,
.question-layout,
.footer-grid {
    display: grid;
    gap: 18px;
}

.topbar-inner {
    grid-template-columns: 1fr;
    align-items: stretch;
    padding: 14px 0 16px;
}

.topbar-main,
.topbar-nav-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.topbar-main {
    min-height: 52px;
}

.topbar-nav-row {
    flex-wrap: wrap;
}

.topbar-utility,
.nav-account {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.nav-account {
    justify-content: flex-end;
    flex-wrap: wrap;
}

.topbar-search {
    width: min(100%, 760px);
    margin-top: 2px;
}

.brand {
    display: inline-flex;
    gap: 14px;
    align-items: center;
}

.brand strong {
    display: block;
    font-size: 1.05rem;
}

.brand small {
    display: block;
    color: var(--text-soft);
}

.brand-mark,
.avatar-sm,
.avatar-lg,
.profile-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--brand), var(--accent));
    color: #fff;
}

.brand-mark {
    width: 42px;
    height: 42px;
}

.avatar-sm,
.profile-avatar {
    width: 34px;
    height: 34px;
}

.avatar-lg {
    width: 62px;
    height: 62px;
    font-size: 1.4rem;
}

.primary-nav,
.topbar-actions,
.hero-actions,
.stats-grid,
.tag-row,
.question-card-footer,
.author-meta,
.stat-inline,
.question-actions,
.share-strip,
.answer-actions,
.table-actions,
.pagination,
.filter-bar {
    align-items: center;
}

.primary-nav {
    justify-content: center;
    background: color-mix(in srgb, var(--surface) 88%, transparent);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 6px;
    box-shadow: var(--shadow);
    flex-wrap: wrap;
}

.primary-nav a,
.stack-links a {
    color: var(--text-soft);
}

.primary-nav a {
    padding: 8px 12px;
    border-radius: 999px;
    font-weight: 600;
}

.primary-nav a.is-active,
.primary-nav a:hover,
.stack-links a:hover {
    color: var(--text);
    background: var(--surface-strong);
}

.search-pill {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 0 14px;
    min-height: 44px;
    box-shadow: var(--shadow);
}

.search-pill input,
.filter-bar input,
.field input,
.field textarea,
.field select {
    width: 100%;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text);
}

.field textarea {
    resize: vertical;
    min-height: 120px;
}

.field select {
    padding-right: 12px;
}

.icon-button,
.ghost-button,
.primary-button,
.secondary-button,
.pill-button {
    border-radius: 999px;
    border: 1px solid transparent;
    transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.icon-button:hover,
.ghost-button:hover,
.primary-button:hover,
.secondary-button:hover,
.pill-button:hover {
    transform: translateY(-1px);
}

.icon-button,
.ghost-button,
.pill-button {
    background: var(--surface);
    border-color: var(--line);
    color: var(--text);
    padding: 9px 14px;
}

.pill-button.is-active {
    background: var(--brand-soft);
    border-color: color-mix(in srgb, var(--brand) 45%, var(--line));
}

.primary-button,
.secondary-button {
    padding: 11px 18px;
    font-weight: 700;
}

.primary-button {
    background: linear-gradient(135deg, var(--brand), #2d7cf0);
    color: #fff;
    box-shadow: var(--shadow);
}

.secondary-button {
    background: var(--accent-soft);
    color: var(--text);
    border-color: transparent;
}

.ghost-button {
    font-weight: 600;
}

.danger-button {
    background: rgba(208, 77, 98, 0.12);
    border-color: rgba(208, 77, 98, 0.22);
    color: var(--danger);
}

.profile-pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 5px 8px 5px 5px;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--line);
}

.desktop-only {
    display: flex;
}

.mobile-only {
    display: none;
}

.mobile-panel {
    border-top: 1px solid var(--line);
}

.mobile-panel-inner {
    display: grid;
    gap: 10px;
    padding: 14px 0 18px;
}

.mobile-panel-group {
    display: grid;
    gap: 8px;
    padding: 12px 14px;
    border-radius: 20px;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.mobile-panel-label {
    color: var(--text-faint);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
}

.flash,
.surface-card,
.question-card,
.answer-card,
.modal-panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.surface-card,
.question-card,
.answer-card {
    transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.surface-card:hover,
.question-card:hover,
.answer-card:hover {
    transform: translateY(-2px);
    border-color: rgba(12, 95, 230, 0.16);
}

.flash {
    padding: 14px 18px;
    margin-top: 20px;
}

.flash-success {
    background: color-mix(in srgb, var(--success-soft) 72%, var(--surface));
}

.flash-warning,
.flash-error {
    background: color-mix(in srgb, rgba(208, 77, 98, 0.14) 70%, var(--surface));
}

.page-shell {
    padding: 22px 0 72px;
}

.hero {
    padding: 18px 0 26px;
}

.hero-copy {
    padding: 14px 0;
}

.hero-copy p {
    max-width: 60ch;
}

.hero-aside .surface-card,
.spotlight-card {
    background: linear-gradient(180deg, rgba(12, 95, 230, 0.08), transparent), var(--surface);
}

.hero-grid,
.content-with-sidebar,
.question-layout,
.footer-grid {
    grid-template-columns: 1.65fr 1fr;
    gap: 18px;
}

.hero-copy h1,
.section-heading h1,
.simple-state h1,
.profile-hero h1 {
    line-height: 1.14;
    margin: 10px 0;
}

.hero-copy p,
.section-heading p,
.lead-text {
    color: var(--text-soft);
    font-size: 0.98rem;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 12px;
    border-radius: 999px;
    background: var(--brand-soft);
    color: var(--brand);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    font-size: 0.72rem;
}

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

.stat-card {
    min-width: 160px;
    padding: 16px;
    margin: 10px;
    border-radius: var(--radius-md);
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.stat-card strong {
    display: block;
    font-size: 1.8rem;
}

.stat-card span {
    color: var(--text-soft);
}

.surface-card,
.question-card,
.question-panel,
.answer-card {
    padding: 20px;
}

.category-grid,
.card-stack,
.sidebar-stack,
.stack-links,
.answer-stack,
.admin-sections,
.checklist,
.footer-list {
    display: grid;
    gap: 14px;
}

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

.category-panel {
    padding: 18px;
    border-radius: var(--radius-md);
    background: var(--surface-muted);
    border: 1px solid var(--line);
}

.category-panel span,
.question-card p,
.stack-links,
.footer-list,
.empty-state p,
.callout,
.modal-copy p {
    color: var(--text-soft);
}

.split-section,
.question-layout {
    margin-top: 26px;
}

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

.section-heading {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: end;
    margin-bottom: 14px;
}

.section-heading.compact {
    margin-bottom: 10px;
}

.question-card-top,
.question-topbar,
.answer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.question-card h3,
.question-panel h1,
.answer-form-card h2,
.admin-page h1,
.simple-state h1 {
    margin: 0;
}

.section-heading h2,
.question-panel h1,
.answer-form-card h2,
.admin-page h2,
.profile-hero h2 {
    font-size: clamp(1.3rem, 2.1vw, 1.7rem);
    line-height: 1.22;
    margin: 0;
}

.question-card h3 {
    font-size: 1.08rem;
    margin-top: 8px;
}

.admin-editor-header h3,
.admin-action-card h3 {
    font-size: 1.02rem;
    line-height: 1.3;
}

.question-card h3 a:hover {
    color: var(--brand);
}

.category-chip,
.status-badge,
.tag-chip,
.accept-badge {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 7px 12px;
    font-size: 0.82rem;
}

.category-chip {
    background: var(--brand-soft);
    color: var(--brand);
}

.tag-chip {
    background: var(--surface-muted);
    color: var(--text-soft);
}

.status-badge {
    background: var(--accent-soft);
    color: var(--accent);
}

.accept-badge {
    background: var(--success-soft);
    color: var(--success);
}

.author-meta small,
.author-meta a,
.stat-inline,
.answer-state {
    color: var(--text-soft);
}

.stat-inline {
    font-size: 0.92rem;
}

.listing-shell,
.form-shell,
.profile-shell,
.admin-page {
    display: grid;
    gap: 18px;
}

.admin-hero {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 24px;
}

.admin-hero-pro {
    padding: 6px 0 2px;
}

.admin-hero-copy {
    display: grid;
    gap: 10px;
    max-width: 760px;
}

.admin-hero-copy p {
    color: var(--text-soft);
    max-width: 64ch;
}

.admin-hero-metrics,
.admin-inline-actions,
.admin-meta-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.metric-pill {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--brand-soft) 72%, var(--surface));
    border: 1px solid color-mix(in srgb, var(--brand) 18%, var(--line));
    color: var(--text);
    font-weight: 700;
}

.admin-actions-bar {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.admin-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
}

.admin-sidebar {
    position: sticky;
    top: 104px;
    display: grid;
    gap: 14px;
}

.admin-sidebar-block {
    display: grid;
    gap: 12px;
}

.admin-sidebar h2 {
    margin: 0;
}

.admin-nav,
.admin-quickstats,
.admin-main {
    display: grid;
    gap: 12px;
}

.admin-nav a {
    padding: 10px 12px;
    border-radius: 16px;
    background: var(--surface-muted);
    color: var(--text);
    border: 1px solid var(--line);
}

.admin-nav a:hover {
    border-color: rgba(12, 95, 230, 0.25);
}

.admin-mini-stat {
    padding: 14px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--surface-muted), transparent);
    border: 1px solid var(--line);
}

.admin-mini-stat strong {
    display: block;
    font-size: 1.35rem;
}

.dashboard-kpi-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.dashboard-kpi-grid-pro {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.dashboard-kpi {
    padding: 16px;
    border-radius: 20px;
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(12, 95, 230, 0.08), transparent), var(--surface-muted);
}

.dashboard-kpi span,
.dashboard-kpi small {
    color: var(--text-soft);
}

.dashboard-kpi strong {
    display: block;
    font-size: 1.7rem;
    margin: 6px 0 4px;
}

.admin-action-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 14px;
}

.admin-action-card {
    padding: 16px 18px;
    border-radius: 22px;
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(243, 156, 18, 0.08), transparent), var(--surface-muted);
}

.admin-action-card h3,
.admin-editor-header h3 {
    margin: 0 0 6px;
}

.admin-action-card p,
.admin-editor-header p,
.admin-meta-strip {
    color: var(--text-soft);
}

.admin-split-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.admin-create-form,
.admin-editor-card {
    display: grid;
    gap: 14px;
    padding: 16px;
    border-radius: 22px;
    background: var(--surface-muted);
    border: 1px solid var(--line);
}

.admin-editor-list {
    display: grid;
    gap: 14px;
}

.admin-editor-header {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: start;
}

.admin-form-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

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

.admin-inline-actions-wrap {
    margin-top: 12px;
}

.admin-inline-delete {
    margin: -6px 0 4px;
}

.admin-meta-strip {
    padding-top: 4px;
    font-size: 0.92rem;
}

.filter-bar,
.form-card,
.reply-form {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: var(--shadow);
}

.filter-bar input {
    min-width: 240px;
}

.field {
    display: grid;
    gap: 10px;
    color: var(--text-soft);
}

.field input,
.field textarea,
.field select {
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
    padding: 5px;
    background: var(--surface-strong);
}

.question-shell,
.profile-shell {
    display: grid;
    gap: 18px;
}

.question-main,
.answers-section {
    display: grid;
    gap: 16px;
}

.question-body,
.answer-body,
.prose {
    color: var(--text);
}

.question-panel {
    background:
        radial-gradient(circle at top right, rgba(12, 95, 230, 0.08), transparent 26%),
        var(--surface);
}

.prose p,
.prose ul,
.prose h1,
.prose h2,
.prose h3 {
    margin: 0 0 16px;
}

.prose ul {
    padding-left: 20px;
}

.prose code {
    padding: 3px 7px;
    border-radius: 8px;
    background: var(--surface-muted);
    font-family: "Consolas", monospace;
}

.ad-slot {
    margin: 20px 0;
    padding: 12px;
    border-radius: var(--radius-md);
    border: 1px dashed var(--line);
    background: color-mix(in srgb, var(--surface-muted) 72%, transparent);
}

.ad-label {
    display: inline-block;
    margin-bottom: 10px;
    color: var(--text-faint);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.answer-card {
    position: relative;
}

.answer-card.is-accepted {
    border-color: color-mix(in srgb, var(--success) 38%, var(--line));
}

.answer-card.is-hidden {
    opacity: 0.84;
}

.answer-card.depth-1,
.answer-card.depth-2,
.answer-card.depth-3 {
    margin-left: 20px;
}

.answer-children {
    display: grid;
    gap: 14px;
    margin-top: 16px;
}

.inline-form {
    margin: 0;
}

.reply-form {
    margin-top: 16px;
}

.simple-state,
.empty-state {
    text-align: center;
    padding: 48px 24px;
}

.callout,
.divider {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
}

.callout.warning {
    background: var(--accent-soft);
    color: var(--text);
}

.divider {
    text-align: center;
    background: var(--surface-muted);
    color: var(--text-soft);
}

.modal[hidden] {
    display: none;
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 90;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 10, 19, 0.72);
}

.modal-panel {
    position: relative;
    width: min(560px, calc(100vw - 28px));
    margin: min(10vh, 80px) auto 0;
    padding: 22px;
    z-index: 1;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    border: none;
    background: transparent;
    color: var(--text-faint);
    font-size: 1.8rem;
}

.modal-copy {
    margin-bottom: 18px;
}

.auth-actions {
    display: grid;
    gap: 14px;
}

.modal-status {
    margin-top: 16px;
    color: var(--text-soft);
    min-height: 24px;
}

.microcopy {
    color: var(--text-faint);
    font-size: 0.92rem;
    margin-top: 14px;
}

.recaptcha-holder {
    min-height: 4px;
}

.site-footer {
    padding: 24px 0 36px;
    border-top: 1px solid var(--line);
}

.footer-grid {
    align-items: start;
}

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

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 11px 10px;
    text-align: left;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

th {
    color: var(--text-soft);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.admin-sections {
    gap: 22px;
}

.checklist,
.stats-list {
    padding-left: 18px;
}

.checklist li,
.stats-list span {
    color: var(--text-soft);
}

@media (max-width: 1024px) {
    .hero-grid,
    .content-with-sidebar,
    .question-layout,
    .footer-grid,
    .topbar-inner {
        grid-template-columns: 1fr;
    }

    .topbar-main {
        gap: 10px;
    }

    .admin-layout,
    .dashboard-kpi-grid,
    .dashboard-kpi-grid-pro,
    .admin-action-grid,
    .admin-split-grid,
    .admin-form-grid,
    .admin-form-grid-compact {
        grid-template-columns: 1fr;
    }

    .primary-nav {
        display: none;
    }

    .topbar-nav-row {
        display: none;
    }

    .desktop-only {
        display: none;
    }

    .mobile-only {
        display: inline-flex;
    }

    .sticky-card {
        position: static;
    }

    .admin-sidebar {
        position: static;
    }
}

@media (max-width: 720px) {
    .page-shell {
        padding-top: 16px;
    }

    .surface-card,
    .question-card,
    .question-panel,
    .answer-card,
    .filter-bar,
    .form-card,
    .reply-form,
    .modal-panel {
        padding: 16px;
        border-radius: 20px;
    }

    .hero-copy h1,
    .section-heading h1,
    .simple-state h1,
    .profile-hero h1 {
        font-size: 1.75rem;
    }

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

    .section-heading {
        align-items: start;
    }

    .admin-hero {
        align-items: start;
        flex-direction: column;
    }

    .admin-editor-header,
    .admin-inline-actions,
    .admin-meta-strip {
        align-items: start;
        flex-direction: column;
    }

    .answer-card.depth-1,
    .answer-card.depth-2,
    .answer-card.depth-3 {
        margin-left: 10px;
    }
}