:root {
    --font-sans: 'Instrument Sans', ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji',
        'Segoe UI Symbol', 'Noto Color Emoji';
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono',
        'Courier New', monospace;

    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --slate-100-text: #f1f5f9;

    --primary: #2563eb;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;

    --indigo-400: var(--primary-400);
    --indigo-500: var(--primary-500);
    --indigo-600: var(--primary-600);
    --indigo-700: var(--primary-700);

    --red-50: #fef2f2;
    --red-200: #fecaca;
    --red-500: #ef4444;
    --red-700: #b91c1c;

    --emerald-50: #ecfdf5;
    --emerald-200: #a7f3d0;
    --emerald-500: #10b981;
    --emerald-600: #059669;
    --emerald-700: #047857;

    --amber-600: #d97706;

    --header-bg: #ffffff;
    --card-bg: #ffffff;
    --card-border: #e2e8f0;
    --card-shadow: 0 1px 3px rgb(15 23 42 / 0.06), 0 1px 2px rgb(15 23 42 / 0.04);

    --page-bg: var(--slate-50);
    --surface: #ffffff;
    --surface-muted: var(--slate-50);
    --text-primary: var(--slate-900);
    --text-secondary: var(--slate-600);
    --text-muted: var(--slate-500);
    --text-code: var(--slate-800);
    --border: var(--slate-200);
    --nav-pill-bg: var(--slate-100);
    --tab-active-bg: #ffffff;
    --caret-color: var(--slate-800);
    --diff-base: #ffffff;

    --layout-max-width: 76rem;
    --layout-gutter: 1.25rem;
    --header-height: 4rem;

    --btn-blue-soft: rgb(37 99 235 / 0.08);
    --btn-blue-soft-hover: rgb(37 99 235 / 0.14);
    --btn-blue-border: rgb(37 99 235 / 0.35);
}

[data-theme='dark'] {
    --slate-50: #0f172a;
    --slate-100: #1e293b;
    --slate-200: #334155;
    --slate-300: #475569;
    --slate-500: #94a3b8;
    --slate-600: #cbd5e1;
    --slate-700: #e2e8f0;
    --slate-800: #f1f5f9;
    --slate-900: #f8fafc;

    --header-bg: #1e293b;
    --card-bg: #1e293b;
    --card-border: #334155;
    --card-shadow: 0 1px 3px rgb(0 0 0 / 0.35), 0 1px 2px rgb(0 0 0 / 0.25);

    --page-bg: #0f172a;
    --surface: #0f172a;
    --surface-muted: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-code: #f1f5f9;
    --border: #334155;
    --nav-pill-bg: #0f172a;
    --tab-active-bg: #334155;
    --caret-color: #f1f5f9;
    --diff-base: #0f172a;

    --red-50: #450a0a;
    --red-200: #991b1b;
    --red-700: #fecaca;

    --emerald-50: #064e3b;
    --emerald-200: #047857;
    --emerald-600: #34d399;
    --emerald-700: #a7f3d0;

    --amber-600: #fbbf24;

    --indigo-400: var(--primary-400);
    --indigo-500: var(--primary-500);
    --indigo-600: var(--primary-600);
    --indigo-700: var(--primary-700);

    --btn-blue-soft: rgb(96 165 250 / 0.14);
    --btn-blue-soft-hover: rgb(96 165 250 / 0.22);
    --btn-blue-border: rgb(96 165 250 / 0.45);
}

@media (width >= 64rem) {
    :root {
        --layout-gutter: 1.5rem;
    }
}

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

body {
    margin: 0;
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
}

.hidden {
    display: none !important;
}

.page {
    display: flex;
    min-height: 100dvh;
    flex-direction: column;
    background-color: var(--page-bg);
    color: var(--text-primary);
}

/* Site header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 200;
    flex-shrink: 0;
    border-bottom: 1px solid var(--card-border);
    background-color: var(--header-bg);
    padding-left: var(--layout-gutter);
    padding-right: var(--layout-gutter);
    box-shadow: 0 1px 3px rgb(15 23 42 / 0.06);
}

.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
    width: 100%;
    max-width: var(--layout-max-width);
    margin: 0 auto;
    padding: 0.875rem 0;
}

.site-header-nav {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
    min-width: 0;
}

.mobile-nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
    border: 1px solid var(--btn-blue-border);
    border-radius: 0.5rem;
    background-color: var(--btn-blue-soft);
    color: var(--primary);
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}

.mobile-nav-toggle:hover,
.mobile-nav-toggle[aria-expanded='true'] {
    background-color: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

.mobile-nav-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.mobile-nav-icon-close {
    display: none;
}

.site-header.is-nav-open .mobile-nav-icon-open {
    display: none;
}

.site-header.is-nav-open .mobile-nav-icon-close {
    display: inline-flex;
}

.site-header-brand {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    flex-shrink: 0;
    min-width: 0;
}

.site-brand {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.0625rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
    flex-shrink: 0;
}

.header-search {
    position: relative;
}

.header-search-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
    border: 1px solid var(--btn-blue-border);
    border-radius: 0.5rem;
    background-color: var(--btn-blue-soft);
    color: var(--primary);
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}

.header-search-toggle:hover,
.header-search-toggle[aria-expanded='true'] {
    background-color: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

.header-search-panel {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    z-index: 100;
    width: min(20rem, calc(100vw - 2rem));
    padding: 0.75rem;
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    background: var(--card-bg);
    box-shadow: 0 10px 25px rgb(15 23 42 / 0.12), 0 4px 10px rgb(15 23 42 / 0.06);
}

.header-search-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    background: var(--surface-muted);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
}

.header-search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.15);
}

.header-search-results {
    margin: 0.625rem 0 0;
    padding: 0;
    list-style: none;
    max-height: 16rem;
    overflow-y: auto;
}

.header-search-results li + li {
    margin-top: 0.25rem;
}

.header-search-item {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    padding: 0.5rem 0.625rem;
    border-radius: 0.375rem;
    text-decoration: none;
    color: inherit;
    transition: background-color 0.15s;
}

a.header-search-item:hover {
    background-color: var(--surface-muted);
}

.header-search-item-disabled {
    opacity: 0.65;
    cursor: default;
}

.header-search-item-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-search-item-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.header-search-empty {
    padding: 0.5rem 0.625rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.header-nav {
    display: flex;
    gap: 0.25rem;
    padding: 0.25rem;
    border-radius: 0.5rem;
    background-color: var(--nav-pill-bg);
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
    border: 1px solid var(--btn-blue-border);
    border-radius: 0.5rem;
    background-color: var(--btn-blue-soft);
    color: var(--primary);
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}

.theme-toggle:hover {
    background-color: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

.theme-toggle-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.theme-icon-moon {
    display: none;
}

[data-theme='dark'] .theme-icon-sun {
    display: none;
}

[data-theme='dark'] .theme-icon-moon {
    display: inline-flex;
}

.site-brand-logo {
    display: block;
    width: 2rem;
    height: 2rem;
    flex-shrink: 0;
    object-fit: contain;
}

.site-brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 0.5rem;
    background: linear-gradient(135deg, var(--indigo-600), var(--indigo-500));
    color: white;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 500;
}

.site-brand-name {
    letter-spacing: -0.02em;
}

.header-nav .tab {
    padding: 0.4375rem 1rem;
}

/* Site layout — header tools nav */
.site-header .tools-nav {
    position: static;
    top: auto;
    z-index: auto;
    width: 100%;
}

.site-header .tools-nav-inner {
    justify-content: center;
    padding: 0;
    border: none;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.site-header .tools-nav-menu {
    z-index: 210;
}

.tools-nav {
    flex-shrink: 0;
}

@media (width < 48rem) {
    .mobile-nav-toggle {
        display: inline-flex;
    }

    .site-header-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        z-index: 199;
        flex: none;
        justify-content: flex-start;
        padding: 0.75rem var(--layout-gutter) 1rem;
        border-bottom: 1px solid var(--card-border);
        background-color: var(--header-bg);
        box-shadow: 0 4px 12px rgb(15 23 42 / 0.08);
    }

    .site-header.is-nav-open .site-header-nav {
        display: block;
    }

    .site-header .tools-nav-inner {
        flex-direction: column;
        align-items: stretch;
        gap: 0.25rem;
        padding: 0.375rem;
        border: 1px solid var(--card-border);
        border-radius: 0.75rem;
        background: var(--card-bg);
        box-shadow: var(--card-shadow);
    }

    .tools-nav-item .tools-nav-trigger {
        width: 100%;
        justify-content: space-between;
    }

    .tools-nav-item .tools-nav-menu {
        position: static;
        min-width: 0;
        padding-top: 0;
        opacity: 1;
        visibility: visible;
        transform: none;
        pointer-events: auto;
        display: none;
    }

    .tools-nav-item.is-open .tools-nav-menu {
        display: block;
    }

    .tools-nav-item.is-open .tools-nav-chevron {
        transform: rotate(180deg);
        color: var(--primary);
    }
}

@media (width >= 48rem) {
    .site-header-nav {
        position: absolute;
        top: 0;
        left: 50%;
        transform: translateX(-50%);
        width: max-content;
        max-width: calc(100% - 20rem);
        height: 100%;
        display: flex;
        align-items: center;
        pointer-events: none;
    }

    .site-header-nav .tools-nav {
        pointer-events: auto;
    }
}

/* Breadcrumb */
.breadcrumb-bar {
    flex-shrink: 0;
    padding: 0.375rem 1rem 0.5rem;
}

.breadcrumb-bar-inner {
    display: flex;
    justify-content: flex-end;
    width: 100%;
    max-width: var(--layout-max-width);
    margin: 0 auto;
}

.page-tool .breadcrumb-bar {
    padding-left: var(--layout-gutter);
    padding-right: var(--layout-gutter);
}

.page-tool .breadcrumb-bar-inner {
    max-width: none;
}

.breadcrumb {
    flex-shrink: 0;
    display: flex;
    justify-content: flex-end;
    margin-bottom: 0;
}

.breadcrumb-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 0.375rem;
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: 0.75rem;
    line-height: 1.4;
    text-align: right;
}

.breadcrumb-item {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--text-muted);
}

.breadcrumb-item:not(.breadcrumb-item-current)::after {
    content: '/';
    color: var(--text-muted);
    opacity: 0.6;
}

.breadcrumb-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.breadcrumb-link:hover {
    text-decoration: underline;
}

.breadcrumb-text {
    color: var(--text-secondary);
}

.breadcrumb-item-current .breadcrumb-text {
    color: var(--text-primary);
    font-weight: 600;
}

/* Tools navigation */
.tools-nav-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    padding: 0.375rem;
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    background: var(--card-bg);
    box-shadow: var(--card-shadow);
}

.tools-nav-item {
    position: relative;
}

.tools-nav-trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.875rem;
    border: 1px solid transparent;
    border-radius: 0.5rem;
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}

.tools-nav-trigger:hover,
.tools-nav-item:focus-within .tools-nav-trigger,
.tools-nav-item.is-active-group .tools-nav-trigger {
    background: var(--btn-blue-soft);
    border-color: var(--btn-blue-border);
    color: var(--primary);
}

.tools-nav-chevron {
    color: var(--text-muted);
    transition: transform 0.2s ease, color 0.15s;
}

.tools-nav-item:hover .tools-nav-chevron,
.tools-nav-item:focus-within .tools-nav-chevron {
    transform: rotate(180deg);
    color: var(--primary);
}

.tools-nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 110;
    min-width: 15rem;
    padding-top: 0.375rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(0.25rem);
    transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
    pointer-events: none;
}

@media (hover: hover) {
    .tools-nav-item:hover .tools-nav-menu,
    .tools-nav-item:focus-within .tools-nav-menu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        pointer-events: auto;
    }
}

.tools-nav-list {
    margin: 0;
    padding: 0.5rem;
    list-style: none;
    border: 1px solid var(--card-border);
    border-radius: 0.625rem;
    background: var(--card-bg);
    box-shadow: 0 10px 25px rgb(15 23 42 / 0.12), 0 4px 10px rgb(15 23 42 / 0.06);
}

.tools-nav-list li + li {
    margin-top: 0.25rem;
}

.tools-nav-link {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    padding: 0.5rem 0.625rem;
    border-radius: 0.4375rem;
    border: 1px solid transparent;
    text-decoration: none;
    color: inherit;
    transition: background-color 0.15s, border-color 0.15s;
}

a.tools-nav-link:hover {
    background: var(--btn-blue-soft);
    border-color: var(--btn-blue-border);
}

.tools-nav-link.is-active {
    background: var(--btn-blue-soft);
    border-color: var(--primary);
}

.tools-nav-link.is-active .tools-nav-link-name {
    color: var(--primary);
}

.tools-nav-link.is-disabled {
    opacity: 0.7;
    cursor: default;
}

.tools-nav-link-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.tools-nav-link-desc {
    font-size: 0.6875rem;
    line-height: 1.4;
    color: var(--text-muted);
}

.tools-nav-badge {
    margin-top: 0.125rem;
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.tools-nav-empty {
    display: block;
    padding: 0.5rem 0.625rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* Main content */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding: calc(var(--header-height) + 1rem) 1rem 1.25rem;
}

/* Tool pages — full-width layout */
.page-tool .main {
    padding-left: var(--layout-gutter);
    padding-right: var(--layout-gutter);
}

.page-tool .site-header-inner,
.page-tool .site-footer-inner,
.page-tool .container {
    max-width: none;
    width: 100%;
}

.container {
    display: flex;
    flex: 1;
    flex-direction: column;
    width: 100%;
    max-width: var(--layout-max-width);
    margin: 0 auto;
    min-height: 0;
}

@media (width >= 40rem) {
    .main {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }
}

@media (width >= 64rem) {
    .main {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

/* Hero */
.hero {
    text-align: center;
    margin-bottom: 1rem;
    flex-shrink: 0;
}

.hero-title {
    margin: 0;
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--slate-900);
}

.hero-subtitle {
    margin: 0.5rem 0 0;
    font-size: 1rem;
    color: var(--slate-600);
    max-width: 42rem;
    margin-left: auto;
    margin-right: auto;
}

/* Tabs */
.tab {
    border: none;
    background: transparent;
    color: var(--slate-600);
    border-radius: 0.375rem;
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: color 0.15s, background-color 0.15s, box-shadow 0.15s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

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

.tab-active {
    background-color: var(--tab-active-bg);
    color: var(--primary);
    box-shadow: 0 1px 2px rgb(0 0 0 / 0.06);
}

.tool-panel {
    display: flex;
    flex: 1 1 0;
    flex-direction: column;
    min-height: 0;
}

/* Converter card */
.converter-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    box-shadow: var(--card-shadow);
    padding: 1rem;
}

.converter-card-fill {
    display: flex;
    flex: 1;
    flex-direction: column;
    min-height: 0;
    height: calc(100dvh - 9rem);
    overflow: hidden;
}

@media (width >= 40rem) {
    .converter-card {
        padding: 1.25rem 1.5rem;
    }

    .converter-card-fill {
        height: calc(100dvh - 8.5rem);
    }
}

.converter-title {
    margin: 0 0 0.75rem;
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    flex-shrink: 0;
}

.split-pane-col {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    min-height: 0;
    min-width: 0;
    overflow: hidden;
}

.split-pane-col > .json-panel {
    flex: 1 1 0;
    min-height: 0;
}

.controls-column {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    align-self: center;
    gap: 0.5rem;
    padding: 0.25rem 0;
}

@media (width >= 48rem) {
    .controls-column {
        flex-direction: column;
        flex-wrap: nowrap;
        min-width: 7.5rem;
        padding: 0 0.25rem;
    }
}

.controls-divider {
    display: none;
    width: 2rem;
    height: 1px;
    background-color: var(--border);
}

@media (width >= 48rem) {
    .controls-divider {
        display: block;
        margin: 0.25rem 0;
    }
}

.btn-control {
    min-width: 6.5rem;
}

@media (width >= 48rem) {
    .btn-control {
        width: 100%;
    }
}

.field-group {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    margin-bottom: 1rem;
}

.field-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.code-fill {
    flex: 1 1 0;
    min-height: 0;
}

.json-key {
    color: var(--primary);
    font-weight: 500;
}

.json-string {
    color: var(--emerald-700);
}

.json-number {
    color: var(--amber-600);
}

.json-boolean {
    color: #7c3aed;
}

.json-null {
    color: var(--slate-500);
    font-style: italic;
}

[data-theme='dark'] .json-key {
    color: var(--primary-400);
}

[data-theme='dark'] .json-string {
    color: var(--emerald-500);
}

[data-theme='dark'] .json-number {
    color: #fbbf24;
}

[data-theme='dark'] .json-boolean {
    color: #a78bfa;
}

[data-theme='dark'] .json-null {
    color: var(--slate-500);
}

.yaml-key {
    color: var(--primary);
    font-weight: 500;
}

.yaml-string {
    color: var(--emerald-700);
}

.yaml-number {
    color: var(--amber-600);
}

.yaml-literal {
    color: #7c3aed;
}

.yaml-comment {
    color: var(--text-muted);
    font-style: italic;
}

[data-theme='dark'] .yaml-key {
    color: var(--primary-400);
}

[data-theme='dark'] .yaml-string {
    color: var(--emerald-500);
}

[data-theme='dark'] .yaml-number {
    color: #fbbf24;
}

[data-theme='dark'] .yaml-literal {
    color: #a78bfa;
}

.xml-decl {
    color: var(--text-muted);
    font-style: italic;
}

.xml-bracket {
    color: var(--slate-500);
}

.xml-tag {
    color: var(--primary);
    font-weight: 500;
}

.xml-attr {
    color: var(--amber-600);
}

.xml-string {
    color: var(--emerald-700);
}

[data-theme='dark'] .xml-bracket {
    color: var(--slate-400);
}

[data-theme='dark'] .xml-tag {
    color: var(--primary-400);
}

[data-theme='dark'] .xml-attr {
    color: #fbbf24;
}

[data-theme='dark'] .xml-string {
    color: var(--emerald-500);
}

.csv-header {
    color: var(--primary);
    font-weight: 500;
}

.csv-cell {
    color: var(--emerald-700);
}

.csv-sep {
    color: var(--slate-400);
}

[data-theme='dark'] .csv-header {
    color: var(--primary-400);
}

[data-theme='dark'] .csv-cell {
    color: var(--emerald-500);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.375rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s;
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-700);
    border-color: var(--primary-700);
}

.btn-secondary {
    background-color: var(--btn-blue-soft);
    color: var(--primary);
    border-color: var(--btn-blue-border);
}

.btn-secondary:hover {
    background-color: var(--btn-blue-soft-hover);
    border-color: var(--primary);
    color: var(--primary-700);
}

[data-theme='dark'] .btn-secondary:hover {
    color: var(--primary-400);
}

.btn-ghost {
    background-color: transparent;
    color: var(--primary);
    border-color: transparent;
}

.btn-ghost:hover {
    color: var(--primary-700);
    background-color: var(--btn-blue-soft);
    border-color: var(--btn-blue-border);
}

[data-theme='dark'] .btn-ghost:hover {
    color: var(--primary-400);
}

/* Footer */
.site-footer {
    flex-shrink: 0;
    border-top: 1px solid var(--card-border);
    background-color: var(--header-bg);
    padding: 1rem var(--layout-gutter) 1.25rem;
}

.site-footer-inner {
    width: 100%;
    max-width: var(--layout-max-width);
    margin: 0 auto;
}

.site-footer-legal {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    justify-content: center;
    margin-bottom: 0.75rem;
}

.site-footer-legal a {
    font-size: 0.8125rem;
    color: var(--text-muted);
    text-decoration: none;
}

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

.site-footer-copy {
    margin: 0;
    font-size: 0.8125rem;
    color: var(--text-muted);
    text-align: center;
}

/* Static pages */
.page-static .main {
    flex: unset;
    min-height: auto;
    padding-bottom: 2rem;
    padding-left: var(--layout-gutter);
    padding-right: var(--layout-gutter);
}

.page-static .container {
    flex: unset;
    min-height: auto;
    width: 100%;
    max-width: var(--layout-max-width);
    margin: 0 auto;
}

.static-page {
    width: 100%;
    margin: 0 auto;
}

.static-page-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    box-shadow: var(--card-shadow);
    padding: 1.5rem 1.25rem 1.75rem;
}

@media (width >= 40rem) {
    .static-page-card {
        padding: 1.75rem 1.75rem 2rem;
    }
}

.static-page-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--card-border);
    text-align: center;
}

.static-page-title {
    margin: 0 0 0.5rem;
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.static-page-subtitle {
    margin: 0;
    font-size: 1rem;
    color: var(--text-muted);
}

.static-page-body {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.static-page-section h2 {
    margin-top: 0;
}

.static-page-body h2 {
    margin: 0 0 0.625rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.static-page-section {
    padding: 1rem 0;
    border-bottom: 1px solid var(--card-border);
}

.static-page-section:first-child {
    padding-top: 0;
}

.static-page-section:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.static-page-body p {
    margin: 0 0 1rem;
}

.static-page-body ul {
    margin: 0 0 1rem;
    padding-left: 1.25rem;
}

.static-page-body li + li {
    margin-top: 0.375rem;
}

.static-page-body a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.static-page-body a:hover {
    text-decoration: underline;
}

/* Toastr-style notifications */
.toast-container {
    position: fixed;
    top: calc(var(--header-height) + 0.75rem);
    left: 50%;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.625rem;
    width: min(22rem, calc(100vw - 2rem));
    transform: translateX(-50%);
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    width: 100%;
    padding: 0.875rem 1rem;
    border-radius: 0.5rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    box-shadow: 0 10px 25px rgb(15 23 42 / 0.12), 0 4px 10px rgb(15 23 42 / 0.06);
    pointer-events: auto;
    opacity: 0;
    transform: translateY(-0.75rem);
    transition: opacity 0.28s ease, transform 0.28s ease;
}

.toast-show {
    opacity: 1;
    transform: translateY(0);
}

.toast-hide {
    opacity: 0;
    transform: translateY(-0.75rem);
}

.toast-error {
    border-left: 4px solid var(--red-500);
}

.toast-error .toast-icon {
    color: var(--red-700);
    background-color: var(--red-50);
}

.toast-success {
    border-left: 4px solid var(--emerald-500);
}

.toast-success .toast-icon {
    color: var(--emerald-700);
    background-color: var(--emerald-50);
}

.toast-icon {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.375rem;
    height: 1.375rem;
    border-radius: 9999px;
    font-size: 0.6875rem;
    font-weight: 700;
    line-height: 1;
    margin-top: 0.0625rem;
}

.toast-message {
    flex: 1;
    font-size: 0.875rem;
    line-height: 1.45;
    color: var(--text-code);
    word-break: break-word;
}

.toast-close {
    flex-shrink: 0;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 1.25rem;
    line-height: 1;
    padding: 0;
    cursor: pointer;
    margin: -0.125rem -0.25rem 0 0;
}

.toast-close:hover {
    color: var(--text-secondary);
}