/* OrchidDB — Default theme
   All colours and type defined as CSS variables.
   Swap theme by replacing :root values only — layout never changes.
   ─────────────────────────────────────────────────────────────────── */

/* ── Google Fonts ────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,500&family=Source+Sans+3:wght@300;400;500;600&display=swap');

/* ── Design tokens ───────────────────────────────────────────────── */
:root {
    /* Brand colours */
    --color-primary:        #2d5a27;
    --color-primary-light:  #4a7c44;
    --color-primary-bg:     #e8f2e6;
    --color-accent:         #8b6914;
    --color-accent-light:   #faf3e0;

    /* Neutrals */
    --color-surface:        #ffffff;
    --color-surface-raised: #f7f6f2;
    --color-surface-subtle: #f0ede8;
    --color-border:         #ddd8d0;
    --color-border-light:   #eceae5;

    /* Text */
    --color-text:           #1a1a18;
    --color-text-secondary: #5a574f;
    --color-text-muted:     #8a877f;
    --color-link:           #2d5a27;

    /* Typography */
    --font-heading:  'Cormorant Garamond', Georgia, serif;
    --font-body:     'Source Sans 3', system-ui, sans-serif;
    --font-mono:     'SFMono-Regular', 'Consolas', monospace;

    /* Spacing */
    --space-xs:  4px;
    --space-sm:  8px;
    --space-md:  16px;
    --space-lg:  24px;
    --space-xl:  40px;
    --space-2xl: 64px;

    /* Layout */
    --container-max:  1200px;
    --container-wide: 1400px;
    --radius-sm:      4px;
    --radius-md:      8px;
    --radius-lg:      12px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);
}

/* ── Dark mode ───────────────────────────────────────────────────── */
@media (prefers-color-scheme: dark) {
    :root {
        --color-primary:        #6aab62;
        --color-primary-light:  #88c27f;
        --color-primary-bg:     #1a2d18;
        --color-accent:         #c9a448;
        --color-accent-light:   #2a2410;

        --color-surface:        #1c1c1a;
        --color-surface-raised: #242420;
        --color-surface-subtle: #2c2c28;
        --color-border:         #3a3a34;
        --color-border-light:   #2e2e2a;

        --color-text:           #e8e6e0;
        --color-text-secondary: #a8a59d;
        --color-text-muted:     #6a6860;
        --color-link:           #6aab62;
    }
}

/* ── Reset ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--color-text);
    background: var(--color-surface);
    min-height: 100dvh;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--color-link); }
a:hover { opacity: .8; }

/* ── Skip link ───────────────────────────────────────────────────── */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    background: var(--color-primary);
    color: #fff;
    padding: 8px 16px;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    z-index: 9999;
    text-decoration: none;
    font-size: .9rem;
}
.skip-link:focus { top: 0; }

/* ── Screen-reader only ──────────────────────────────────────────── */
.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;
}

/* ── Container ───────────────────────────────────────────────────── */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-lg);
}

/* ── Header ──────────────────────────────────────────────────────── */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-sm);
}
.header-inner {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    height: 60px;
}
.site-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    flex-shrink: 0;
}
.logo-accent { color: var(--color-primary); }

.main-nav ul { display: flex; gap: 0; list-style: none; }
.main-nav a {
    display: block;
    padding: 8px 14px;
    font-size: .9rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: color .15s, background .15s;
}
.main-nav a:hover,
.main-nav a.active {
    color: var(--color-primary);
    background: var(--color-primary-bg);
}

.search-form {
    margin-left: auto;
    display: flex;
    align-items: center;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 0 4px 0 12px;
    transition: border-color .2s;
}
.search-form:focus-within { border-color: var(--color-primary); }
.search-form input {
    border: none;
    background: transparent;
    font-family: var(--font-body);
    font-size: .875rem;
    color: var(--color-text);
    outline: none;
    width: 180px;
    padding: 7px 0;
}
.search-form input::placeholder { color: var(--color-text-muted); }
.search-form button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-muted);
    padding: 6px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    transition: color .15s;
}
.search-form button:hover { color: var(--color-primary); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    margin-left: auto;
}
.nav-toggle span {
    display: block;
    width: 22px; height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: transform .2s, opacity .2s;
}

/* ── Breadcrumb ──────────────────────────────────────────────────── */
.breadcrumb {
    background: var(--color-surface-raised);
    border-bottom: 1px solid var(--color-border-light);
}
.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
    list-style: none;
    font-size: .8125rem;
    color: var(--color-text-muted);
    padding-block: 10px;
}
.breadcrumb a { color: var(--color-primary); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { color: var(--color-border); }
.breadcrumb [aria-current="page"] { color: var(--color-text-secondary); }

/* ── Page header ─────────────────────────────────────────────────── */
.page-header {
    padding: var(--space-xl) 0 var(--space-lg);
    border-bottom: 1px solid var(--color-border-light);
    margin-bottom: var(--space-xl);
}
.page-title {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 500;
    line-height: 1.2;
    color: var(--color-text);
    font-style: italic;
}
.page-subtitle {
    margin-top: var(--space-sm);
    color: var(--color-text-secondary);
    font-size: 1rem;
}

/* ── Orchid grid ─────────────────────────────────────────────────── */
.orchid-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--space-md);
    padding: var(--space-xl) 0;
}
.orchid-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: box-shadow .2s, transform .2s, border-color .2s;
    display: flex;
    flex-direction: column;
}
.orchid-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--color-primary-light);
}
.orchid-card-img {
    width: 100%;
    aspect-ratio: 1;
    background: var(--color-primary-bg);
    object-fit: cover;
    flex-shrink: 0;
}
.orchid-card-img-placeholder {
    width: 100%;
    aspect-ratio: 1;
    background: var(--color-primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-light);
    font-size: 2rem;
    flex-shrink: 0;
}
.orchid-card-body {
    padding: var(--space-sm) var(--space-md);
    flex: 1;
}
.orchid-card-name {
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.3;
    color: var(--color-text);
}

/* ── Orchid detail page ──────────────────────────────────────────── */
.orchid-detail {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-2xl);
    padding: var(--space-xl) 0;
    align-items: start;
}
.orchid-image-wrap {
    position: sticky;
    top: 80px;
}
.orchid-image-wrap img {
    width: 100%;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
}
.orchid-image-placeholder {
    width: 100%;
    aspect-ratio: 1;
    background: var(--color-primary-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-light);
}
.synonym-banner {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
    background: #fffbeb;
    border-top: 3px solid #d97706;
    border-bottom: 1px solid #fde68a;
    padding: 14px var(--space-xl);
    font-size: .9375rem;
    color: #92400e;
}
@media (prefers-color-scheme: dark) {
    .synonym-banner { background: #292200; border-bottom-color: #6b4e00; color: #fde68a; }
}
.synonym-banner-icon { font-size: 1.2rem; flex-shrink: 0; }
.synonym-banner-text { flex: 1; min-width: 200px; line-height: 1.5; }
.synonym-banner-text a { color: inherit; font-weight: 600; }
.synonym-banner-text a:hover { text-decoration: underline; }
.synonym-banner-btn {
    flex-shrink: 0;
    padding: 7px 16px;
    background: #d97706;
    color: #fff;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: .875rem;
    font-weight: 500;
    white-space: nowrap;
    transition: opacity .2s;
}
.synonym-banner-btn:hover { opacity: .88; }

.synonym-badge {
    margin-top: var(--space-sm);
    padding: 8px 12px;
    background: var(--color-accent-light);
    border: 1px solid #d4a017;
    border-radius: var(--radius-md);
    font-size: .8125rem;
    color: var(--color-accent);
}
.orchid-name {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 500;
    font-style: italic;
    line-height: 1.15;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
}
.orchid-genus-link {
    font-size: .9rem;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}
.orchid-genus-link:hover { text-decoration: underline; }
.orchid-description {
    margin: var(--space-md) 0;
    padding-left: 14px;
    border-left: 3px solid var(--color-primary-bg);
    color: var(--color-text-secondary);
    font-size: .9375rem;
    line-height: 1.7;
}
.orchid-description a { color: var(--color-primary); }

/* ── Tabs ────────────────────────────────────────────────────────── */
.tabs-nav {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-lg);
    overflow-x: auto;
}
.tab-btn {
    padding: 10px 18px;
    font-family: var(--font-body);
    font-size: .875rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    cursor: pointer;
    white-space: nowrap;
    transition: color .15s;
}
.tab-btn:hover { color: var(--color-text); }
.tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    font-weight: 500;
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Parent cards ────────────────────────────────────────────────── */
.parent-cards {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}
.parent-card {
    flex: 1;
    padding: var(--space-md);
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
}
.parent-role {
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--color-text-muted);
    margin-bottom: 4px;
}
.parent-name {
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 1.125rem;
    font-weight: 500;
}
.parent-name a { color: var(--color-primary); text-decoration: none; }
.parent-name a:hover { text-decoration: underline; }
.parent-card-unknown { opacity: .6; border-style: dashed; }
.parent-unknown { font-size: 1rem; color: var(--color-text-muted); font-style: normal; }
.parent-incomplete-note {
    font-size: .8125rem;
    color: var(--color-text-muted);
    margin-top: var(--space-md);
    font-style: italic;
}
.cross-symbol {
    font-size: 1.5rem;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

/* ── Info grid ───────────────────────────────────────────────────── */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
}
.info-item {
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
}
.info-label {
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--color-text-muted);
    margin-bottom: 2px;
}
.info-value {
    font-size: .9375rem;
    color: var(--color-text);
    font-weight: 500;
}

/* ── Parentage list ──────────────────────────────────────────────── */
.parentage-list { list-style: none; display: flex; flex-direction: column; gap: var(--space-sm); }
.parentage-item { display: flex; align-items: center; gap: var(--space-md); }
.parentage-name {
    font-style: italic;
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--color-primary);
    text-decoration: none;
    min-width: 200px;
    max-width: 200px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.parentage-bar-wrap {
    flex: 1;
    height: 6px;
    background: var(--color-surface-subtle);
    border-radius: 3px;
    overflow: hidden;
}
.parentage-bar { height: 100%; background: var(--color-primary); border-radius: 3px; }
.parentage-pct { font-size: .8125rem; color: var(--color-text-secondary); min-width: 54px; text-align: right; }
.parentage-note { margin-top: var(--space-sm); font-size: .8125rem; color: var(--color-text-muted); }

/* ── Family tree ─────────────────────────────────────────────────── */
.family-tree { padding: var(--space-md) 0; }
.family-tree ul { list-style: none; padding-left: var(--space-lg); }
.tree-node { padding: 4px 0; font-size: .9rem; }
.tree-node a { font-style: italic; font-family: var(--font-heading); font-size: 1rem; color: var(--color-primary); text-decoration: none; }
.tree-node a:hover { text-decoration: underline; }
.tree-children { border-left: 1px solid var(--color-border); margin-top: 4px; }
.tree-parent-label { font-size: .75rem; color: var(--color-text-muted); padding: 2px 0; }
.tree-more { color: var(--color-text-muted); font-size: .8rem; }
.tree-truncated { color: var(--color-text-muted); font-style: italic; }
.tree-loading { color: var(--color-text-muted); font-size: .9rem; padding: var(--space-lg) 0; }
.species-badge {
    display: inline-block;
    font-size: .7rem; font-style: normal;
    background: var(--color-primary-bg);
    color: var(--color-primary);
    border: 1px solid var(--color-primary-light);
    border-radius: var(--radius-sm);
    padding: 0 6px;
    margin-left: 6px;
    vertical-align: middle;
}

/* ── Data table ──────────────────────────────────────────────────── */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .875rem;
}
.data-table th {
    text-align: left;
    font-size: .75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--color-border);
    padding: 8px 10px;
    white-space: nowrap;
}
.data-table td {
    padding: 10px 10px;
    border-bottom: 1px solid var(--color-border-light);
    color: var(--color-text);
    vertical-align: top;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--color-surface-raised); }
.data-table a { color: var(--color-primary); text-decoration: none; }
.data-table a:hover { text-decoration: underline; }

/* ── Pagination ──────────────────────────────────────────────────── */
.pagination { padding: var(--space-xl) 0; display: flex; justify-content: center; }
.pagination ul { display: flex; gap: 4px; list-style: none; }
.pagination a, .pagination .active a {
    display: block;
    padding: 6px 12px;
    font-size: .875rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: background .15s, border-color .15s, color .15s;
}
.pagination a:hover { background: var(--color-primary-bg); border-color: var(--color-primary); color: var(--color-primary); }
.pagination .active { font-weight: 600; }
.pagination .active a { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.pagination .ellipsis { display: flex; align-items: center; padding: 0 8px; color: var(--color-text-muted); }

/* ── Empty state ─────────────────────────────────────────────────── */
.empty-state {
    padding: var(--space-xl);
    text-align: center;
    color: var(--color-text-muted);
    background: var(--color-surface-raised);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--color-border);
}

/* ── Footer ──────────────────────────────────────────────────────── */
.site-footer {
    margin-top: var(--space-2xl);
    background: var(--color-surface-raised);
    border-top: 1px solid var(--color-border-light);
}
.footer-inner {
    display: flex;
    gap: var(--space-2xl);
    padding: var(--space-xl) var(--space-lg);
    align-items: start;
}
.footer-brand p { font-size: .875rem; color: var(--color-text-muted); margin-top: var(--space-sm); max-width: 280px; }
.footer-nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: var(--space-sm) var(--space-lg); }
.footer-nav a { font-size: .875rem; color: var(--color-text-secondary); text-decoration: none; }
.footer-nav a:hover { color: var(--color-primary); }
.footer-bottom { border-top: 1px solid var(--color-border-light); }
.footer-bottom .container { padding-block: var(--space-md); }
.footer-bottom p { font-size: .8125rem; color: var(--color-text-muted); }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .orchid-detail { grid-template-columns: 1fr; }
    .orchid-image-wrap { position: static; max-width: 300px; }
    .info-grid { grid-template-columns: 1fr; }
    .parent-cards { flex-direction: column; }
    .cross-symbol { transform: rotate(90deg); }
}

@media (max-width: 768px) {
    .main-nav, .search-form { display: none; }
    .main-nav.open { display: block; }
    .nav-toggle { display: flex; }
    .header-inner { justify-content: space-between; }

    .main-nav.open ul {
        flex-direction: column;
        position: absolute; top: 60px; left: 0; right: 0;
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        padding: var(--space-sm) 0;
        z-index: 99;
    }
    .main-nav.open a { padding: var(--space-sm) var(--space-lg); border-radius: 0; }

    .page-title { font-size: 1.75rem; }
    .orchid-name { font-size: 2rem; }
    .orchid-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
    .footer-inner { flex-direction: column; gap: var(--space-lg); }
    .parentage-name { min-width: 140px; max-width: 140px; }
}

/* ── Search autocomplete dropdown ────────────────────────────────── */
.search-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0; right: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    list-style: none;
    z-index: 200;
    overflow: hidden;
    max-height: 320px;
    overflow-y: auto;
}
.search-dropdown li a {
    display: block;
    padding: 9px 14px;
    font-size: .875rem;
    color: var(--color-text);
    text-decoration: none;
}
.search-dropdown li a:hover,
.search-dropdown li a[aria-selected="true"] {
    background: var(--color-primary-bg);
    color: var(--color-primary);
}