/* ── Design System (CSS Variables) ──────────────────── */

:root, [data-theme="light"] {
    --color-bg: #f5f6fa;
    --color-surface: #ffffff;
    --color-surface-hover: #f0f1f5;
    --color-text: #1a1a2e;
    --color-text-muted: #6b7280;
    --color-text-light: #9ca3af;
    --color-border: #e5e7eb;
    --color-primary: #4f46e5;
    --color-primary-hover: #4338ca;
    --color-primary-light: #eef2ff;
    --color-success: #059669;
    --color-success-light: #ecfdf5;
    --color-danger: #dc2626;
    --color-danger-light: #fef2f2;
    --color-warning: #d97706;
    --color-warning-light: #fffbeb;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-xs: 6px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

[data-theme="dark"] {
    --color-bg: #0f0f14;
    --color-surface: #1a1a24;
    --color-surface-hover: #24243a;
    --color-text: #e4e4e7;
    --color-text-muted: #9ca3af;
    --color-text-light: #6b7280;
    --color-border: #2d2d3d;
    --color-primary: #6366f1;
    --color-primary-hover: #818cf8;
    --color-primary-light: #1e1b4b;
    --color-success: #10b981;
    --color-success-light: #064e3b;
    --color-danger: #ef4444;
    --color-danger-light: #450a0a;
    --color-warning: #f59e0b;
    --color-warning-light: #451a03;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.4);
}

/* ── Reset & Base ──────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { height: 100%; }
body {
    font-family: var(--font);
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    line-height: 1.5;
    transition: background 0.2s, color 0.2s;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); }

/* ── Layout ────────────────────────────────────────── */

.top-bar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0 1rem;
    height: 56px;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
}

.top-bar .logo {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--color-primary);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.top-bar .logo .logo-icon {
    font-size: 1.3rem;
    line-height: 1;
}

.top-bar nav {
    display: flex;
    gap: 0.25rem;
    flex: 1;
    overflow-x: auto;
}

.top-bar nav a {
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-xs);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.15s;
}
.top-bar nav a:hover, .top-bar nav a.active {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.top-bar .actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
}

.main-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
}

/* ── Cards ─────────────────────────────────────────── */

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.15s;
}
.card:hover { box-shadow: var(--shadow-md); }
.card + .card { margin-top: 0.75rem; }

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}
.card-title {
    font-weight: 600;
    font-size: 1.05rem;
}
.card-subtitle {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ── Buttons ───────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
    text-align: center;
    justify-content: center;
}
.btn:hover { background: var(--color-surface-hover); box-shadow: var(--shadow-sm); }

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

.btn-success { background: var(--color-success); color: white; border-color: var(--color-success); }
.btn-danger { background: var(--color-danger); color: white; border-color: var(--color-danger); }
.btn-warning { background: var(--color-warning); color: white; border-color: var(--color-warning); }

.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }
.btn-lg { padding: 0.7rem 1.5rem; font-size: 1rem; }
.btn-block { display: flex; width: 100%; }
.btn-ghost { border: none; background: transparent; color: var(--color-text-muted); }
.btn-ghost:hover { background: var(--color-surface-hover); color: var(--color-text); }

.btn-icon {
    padding: 0.4rem;
    min-width: 36px;
    min-height: 36px;
    justify-content: center;
}

/* ── Forms ──────────────────────────────────────────── */

.form-group {
    margin-bottom: 1rem;
}
.form-group label {
    display: block;
    font-weight: 500;
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
    color: var(--color-text-muted);
}

input[type="text"], input[type="email"], input[type="password"],
input[type="number"], input[type="search"], input[type="date"],
input[type="file"], select, textarea {
    width: 100%;
    padding: 0.55rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 0.9rem;
    font-family: var(--font);
    transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}
input::placeholder, textarea::placeholder {
    color: var(--color-text-light);
}

textarea { resize: vertical; min-height: 80px; }

.form-row {
    display: flex;
    gap: 0.75rem;
}
.form-row .form-group { flex: 1; }

.form-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.25rem;
}

.form-inline {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
}
.form-inline .form-group { margin-bottom: 0; }

/* ── Alerts ────────────────────────────────────────── */

.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
}
.alert-success { background: var(--color-success-light); color: var(--color-success); border-color: var(--color-success); }
.alert-danger { background: var(--color-danger-light); color: var(--color-danger); border-color: var(--color-danger); }
.alert-warning { background: var(--color-warning-light); color: var(--color-warning); border-color: var(--color-warning); }

/* ── Badges ────────────────────────────────────────── */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.badge-muscle {
    background: var(--color-primary-light);
    color: var(--color-primary);
}
.badge-equipment {
    background: var(--color-surface-hover);
    color: var(--color-text-muted);
}

/* ── Category Badges (Textbausteine) ───────────────── */

.badge.cat-gen_beschreibung { background:#dbeafe; color:#1e40af; }
.badge.cat-variante_normal  { background:#dcfce7; color:#166534; }
.badge.cat-risikovariante   { background:#fee2e2; color:#991b1b; }
.badge.cat-massnahme        { background:#fef3c7; color:#92400e; }
.badge.cat-genprofil        { background:#e0e7ff; color:#3730a3; }
.badge.cat-empfehlung       { background:#f3e8ff; color:#6b21a8; }
.badge.cat-intro            { background:#f1f5f9; color:#475569; }
.badge.cat-outro            { background:#f1f5f9; color:#475569; }

[data-theme="dark"] .badge.cat-gen_beschreibung { background:#1e3a8a40; color:#93c5fd; }
[data-theme="dark"] .badge.cat-variante_normal  { background:#14532d40; color:#86efac; }
[data-theme="dark"] .badge.cat-risikovariante   { background:#7f1d1d40; color:#fca5a5; }
[data-theme="dark"] .badge.cat-massnahme        { background:#78350f40; color:#fcd34d; }
[data-theme="dark"] .badge.cat-genprofil        { background:#312e8140; color:#a5b4fc; }
[data-theme="dark"] .badge.cat-empfehlung       { background:#581c8740; color:#d8b4fe; }
[data-theme="dark"] .badge.cat-intro,
[data-theme="dark"] .badge.cat-outro            { background:#33415540; color:#cbd5e1; }

/* Coloured left border on cards by category */
.module-card { background:var(--color-surface); border:1px solid var(--color-border); border-left-width:4px; border-radius:var(--radius); padding:1rem 1.25rem; box-shadow:var(--shadow-sm); margin-bottom:0.75rem; }
.module-card.cat-border-gen_beschreibung { border-left-color:#3b82f6; }
.module-card.cat-border-variante_normal  { border-left-color:#22c55e; }
.module-card.cat-border-risikovariante   { border-left-color:#ef4444; }
.module-card.cat-border-massnahme        { border-left-color:#f59e0b; }
.module-card.cat-border-genprofil        { border-left-color:#6366f1; }
.module-card.cat-border-empfehlung       { border-left-color:#a855f7; }
.module-card.cat-border-intro,
.module-card.cat-border-outro            { border-left-color:#94a3b8; }

/* Gene group header */
.gene-group { margin-bottom:2rem; }
.gene-group-header {
    display:flex; align-items:baseline; gap:0.75rem;
    padding:0.6rem 0.5rem; margin-bottom:0.75rem;
    border-bottom:2px solid var(--color-primary);
}
.gene-group-title {
    font-size:1.15rem; font-weight:700;
    color:var(--color-primary);
}

/* Module details (expandable content) */
.module-details { margin-top:0.6rem; }
.module-details summary {
    cursor:pointer; font-size:0.85rem; color:var(--color-text-muted);
    padding:0.25rem 0; user-select:none;
}
.module-details summary:hover { color:var(--color-primary); }
.module-details[open] summary { color:var(--color-primary); margin-bottom:0.5rem; }

.module-content-display {
    font-size:0.92rem; line-height:1.55; color:var(--color-text);
}
.module-content-display p { margin:0.5rem 0; }
.module-content-display ul, .module-content-display ol { margin:0.5rem 0 0.5rem 1.25rem; }
.module-content-display table {
    border-collapse:collapse; width:100%; margin:0.75rem 0; font-size:0.88rem;
}
.module-content-display th, .module-content-display td {
    border:1px solid var(--color-border); padding:0.4rem 0.6rem; text-align:left;
}
.module-content-display th { background:var(--color-surface-hover); font-weight:600; }

/* Make modal wider for the editor */
.modal.modal-wide { max-width:900px; }

/* ── Risk Level Badges ─────────────────────────────── */

.risk-normal {
    background: var(--color-success-light);
    color: var(--color-success);
}
.risk-erhöht, .risk-erhoht {
    background: var(--color-warning-light);
    color: var(--color-warning);
}
.risk-auffällig, .risk-auffallig {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

/* ── Tables ────────────────────────────────────────── */

.data-table {
    width: 100%;
    border-collapse: collapse;
}
.data-table th {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    padding: 0.6rem 0.75rem;
    text-align: left;
    border-bottom: 2px solid var(--color-border);
}
.data-table td {
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
}
.data-table tr:hover td {
    background: var(--color-surface-hover);
}

/* Match status rows */
.row-matched { border-left: 3px solid var(--color-success); }
.row-partial { border-left: 3px solid var(--color-warning); }
.row-unmatched { border-left: 3px solid var(--color-danger); }

/* ── Tabs ──────────────────────────────────────────── */

.tab-nav {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 1.5rem;
}
.tab-nav a, .tab-nav button {
    padding: 0.6rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all 0.15s;
}
.tab-nav a:hover, .tab-nav button:hover {
    color: var(--color-text);
}
.tab-nav a.active, .tab-nav button.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── Upload Zone ───────────────────────────────────── */

.upload-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--color-text-muted);
}
.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    color: var(--color-primary);
}
.upload-zone-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.upload-zone-text { font-size: 0.9rem; }

/* ── Auth Pages ────────────────────────────────────── */

.auth-container {
    max-width: 400px;
    margin: 3rem auto;
    padding: 0 1rem;
}

.auth-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.25rem;
}
.auth-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

/* ── Section Headers ───────────────────────────────── */

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}
.section-title {
    font-weight: 700;
    font-size: 1.3rem;
}

/* ── Empty State ───────────────────────────────────── */

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-muted);
}
.empty-state-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.empty-state-text { font-size: 0.95rem; }

/* ── Theme Toggle ──────────────────────────────────── */

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.3rem;
    border-radius: var(--radius-xs);
    color: var(--color-text-muted);
    transition: color 0.15s;
}
.theme-toggle:hover { color: var(--color-text); }

/* ── Modal ─────────────────────────────────────────── */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 300;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}
.modal-overlay.active { display: flex; }

.modal {
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border);
}
.modal-header h3 { font-weight: 600; font-size: 1.1rem; }

.modal-body {
    padding: 1rem 1.25rem;
    overflow-y: auto;
    flex: 1;
}

/* ── Setup Wizard ──────────────────────────────────── */

.setup-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 0.5rem;
}

.setup-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.step-dot {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--color-surface-hover);
    color: var(--color-text-muted);
    border: 2px solid var(--color-border);
    transition: all 0.2s;
}

.setup-step.active .step-dot {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.setup-step.done .step-dot {
    background: var(--color-success);
    color: #fff;
    border-color: var(--color-success);
}

.step-label {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

.setup-step.active .step-label {
    color: var(--color-primary);
    font-weight: 600;
}

.step-line {
    width: 40px;
    height: 2px;
    background: var(--color-border);
    margin: 0 0.25rem;
    margin-bottom: 1rem;
}

.step-line.done {
    background: var(--color-success);
}

/* ── Responsive ────────────────────────────────────── */

@media (max-width: 640px) {
    .main-content { padding: 1rem 0.75rem; }
    .top-bar { padding: 0 0.5rem; height: 48px; }
    .top-bar .logo { font-size: 1rem; }
    .top-bar nav a { padding: 0.35rem 0.5rem; font-size: 0.8rem; }
    .form-row { flex-direction: column; gap: 0; }
    .auth-container { margin: 1.5rem auto; }
    .auth-card { padding: 1.5rem; }
    .modal { max-height: 90vh; }
}

/* ── Utility Classes ───────────────────────────────── */

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.text-muted { color: var(--color-text-muted); }
.text-sm { font-size: 0.85rem; }
.text-center { text-align: center; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.hidden { display: none !important; }

/* ── Settings Grid ──────────────────────────────────── */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
}