/* ── Theme Variables ─────────────────────────────────────────── */
:root {
    /* Backgrounds */
    --bg-base:       #030712;   /* gray-950 */
    --bg-surface:    #111827;   /* gray-900 */
    --bg-card:       #1f2937;   /* gray-800 */
    --bg-input:      #1f2937;   /* gray-800 */
    --bg-hover:      #1f2937;   /* gray-800 */
    --bg-active:     #6366f1;   /* indigo-500 */

    /* Borders */
    --border:        #1f2937;   /* gray-800 */
    --border-input:  #374151;   /* gray-700 */

    /* Text */
    --text-primary:  #f1f5f9;   /* slate-100 */
    --text-secondary:#94a3b8;   /* slate-400 */
    --text-muted:    #6b7280;   /* gray-500 */
    --text-active:   #ffffff;

    /* Accent */
    --accent:        #6366f1;   /* indigo-500 */
    --accent-hover:  #4f46e5;   /* indigo-600 */

    /* Status */
    --success-bg:    rgba(34,197,94,0.15);
    --success-border:rgba(34,197,94,0.35);
    --success-text:  #86efac;   /* green-300 */

    --error-bg:      rgba(239,68,68,0.15);
    --error-border:  rgba(239,68,68,0.35);
    --error-text:    #fca5a5;   /* red-300 */

    --warning-bg:    rgba(245,158,11,0.15);
    --warning-border:rgba(245,158,11,0.35);
    --warning-text:  #fcd34d;   /* amber-300 */

    /* Badge colors */
    --badge-green-bg:   rgba(34,197,94,0.15);
    --badge-green-text: #4ade80;   /* green-400 */
    --badge-red-bg:     rgba(239,68,68,0.15);
    --badge-red-text:   #f87171;   /* red-400 */
    --badge-yellow-bg:  rgba(245,158,11,0.15);
    --badge-yellow-text:#fbbf24;   /* amber-400 */
    --badge-gray-bg:    rgba(100,116,139,0.15);
    --badge-gray-text:  #94a3b8;   /* slate-400 */

    /* Sidebar */
    --sidebar-bg:    #111827;   /* gray-900 */
    --sidebar-border:#1f2937;   /* gray-800 */

    /* Header */
    --header-bg:     #111827;   /* gray-900 */
    --header-border: #1f2937;   /* gray-800 */

    /* Table */
    --table-border:  #1f2937;   /* gray-800 */
    --table-hover:   rgba(255,255,255,0.03);

    /* Shadows */
    --shadow:        0 4px 6px -1px rgba(0,0,0,0.3);
    --shadow-lg:     0 10px 15px -3px rgba(0,0,0,0.4);
}

[data-theme="light"] {
    --bg-base:       #f1f5f9;
    --bg-surface:    #ffffff;
    --bg-card:       #ffffff;
    --bg-input:      #f8fafc;
    --bg-hover:      #f1f5f9;
    --bg-active:     #6366f1;

    --border:        #e2e8f0;
    --border-input:  #cbd5e1;

    --text-primary:  #0f172a;
    --text-secondary:#475569;
    --text-muted:    #94a3b8;
    --text-active:   #ffffff;

    --accent:        #6366f1;
    --accent-hover:  #4f46e5;

    --success-bg:    #f0fdf4;
    --success-border:#bbf7d0;
    --success-text:  #16a34a;

    --error-bg:      #fef2f2;
    --error-border:  #fecaca;
    --error-text:    #dc2626;

    --warning-bg:    #fffbeb;
    --warning-border:#fde68a;
    --warning-text:  #d97706;

    --badge-green-bg:   #f0fdf4;
    --badge-green-text: #16a34a;
    --badge-red-bg:     #fef2f2;
    --badge-red-text:   #dc2626;
    --badge-yellow-bg:  #fffbeb;
    --badge-yellow-text:#d97706;
    --badge-gray-bg:    #f8fafc;
    --badge-gray-text:  #64748b;

    --sidebar-bg:    #ffffff;
    --sidebar-border:#e2e8f0;

    --header-bg:     #ffffff;
    --header-border: #e2e8f0;

    --table-border:  #e2e8f0;
    --table-hover:   rgba(0,0,0,0.02);

    --shadow:        0 4px 6px -1px rgba(0,0,0,0.07);
    --shadow-lg:     0 10px 15px -3px rgba(0,0,0,0.1);
}

/* ── Base ────────────────────────────────────────────────────── */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 14px;
    line-height: 1.5;
    transition: background-color 0.2s ease, color 0.2s ease;
}

/* ── Layout ──────────────────────────────────────────────────── */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* ── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
    width: 240px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    transition: background 0.2s ease;
}

.sidebar-logo {
    padding: 24px 20px;
    border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-logo h1 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-logo p {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: background 0.15s ease, color 0.15s ease;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent);
    color: var(--text-active);
}

.sidebar-footer {
    padding: 16px 12px;
    border-top: 1px solid var(--sidebar-border);
}

.sidebar-user {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
    padding: 0 4px;
}

/* ── Main content ────────────────────────────────────────────── */
.main-wrap {
    margin-left: 240px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-header {
    background: var(--header-bg);
    border-bottom: 1px solid var(--header-border);
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 10;
}

.main-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.main-body {
    flex: 1;
    padding: 32px;
}

/* ── Cards ───────────────────────────────────────────────────── */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow);
}

/* ── Tables ──────────────────────────────────────────────────── */
.table-wrap {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

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

thead th {
    text-align: left;
    padding: 12px 20px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom: 1px solid var(--table-border);
    background: var(--bg-surface);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

tbody td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--table-border);
    color: var(--text-primary);
    font-size: 13px;
}

tbody tr:last-child td {
    border-bottom: none;
}

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

/* ── Forms ───────────────────────────────────────────────────── */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
    background: var(--bg-input);
    border: 1px solid var(--border-input);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 13px;
    color: var(--text-primary);
    width: 100%;
    transition: border-color 0.15s ease;
    outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

.form-hint {
    font-size: 11px;
    color: var(--text-muted);
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: opacity 0.15s ease, background 0.15s ease;
}

.btn:hover { opacity: 0.9; }

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

.btn-primary:hover {
    background: var(--accent-hover);
    opacity: 1;
}

.btn-secondary {
    background: var(--bg-hover);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-danger {
    background: rgba(239,68,68,0.15);
    color: #f87171;
    border: 1px solid rgba(239,68,68,0.3);
}

.btn-success {
    background: rgba(34,197,94,0.15);
    color: #4ade80;
    border: 1px solid rgba(34,197,94,0.3);
}

.btn-sm {
    padding: 5px 12px;
    font-size: 12px;
}

/* ── Badges ──────────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
}

.badge-green {
    background: var(--badge-green-bg);
    color: var(--badge-green-text);
}

.badge-red {
    background: var(--badge-red-bg);
    color: var(--badge-red-text);
}

.badge-yellow {
    background: var(--badge-yellow-bg);
    color: var(--badge-yellow-text);
}

.badge-gray {
    background: var(--badge-gray-bg);
    color: var(--badge-gray-text);
}

/* ── Alerts ──────────────────────────────────────────────────── */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 20px;
    border: 1px solid;
}

.alert-success {
    background: var(--success-bg);
    border-color: var(--success-border);
    color: var(--success-text);
}

.alert-error {
    background: var(--error-bg);
    border-color: var(--error-border);
    color: var(--error-text);
}

.alert-warning {
    background: var(--warning-bg);
    border-color: var(--warning-border);
    color: var(--warning-text);
}

/* ── Page header ─────────────────────────────────────────────── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.page-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.page-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ── Stats grid ──────────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
}

.stat-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-sub {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ── Confirm dialog ──────────────────────────────────────────── */
.dialog-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 50;
    align-items: center;
    justify-content: center;
}

.dialog-overlay.active {
    display: flex;
}

.dialog {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.dialog h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.dialog p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.dialog-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* ── Theme toggle ────────────────────────────────────────────── */
.theme-toggle {
    background: var(--bg-hover);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
}

.theme-toggle:hover {
    color: var(--text-primary);
    border-color: var(--accent);
}

/* ── Mono / links ────────────────────────────────────────────── */
.mono {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 12px;
    color: var(--accent);
}

.text-link {
    color: var(--accent);
    text-decoration: none;
    font-size: 13px;
}

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

/* ── Macro pills ─────────────────────────────────────────────── */
.macro-pill {
    display: inline-block;
    background: rgba(99,102,241,0.15);
    color: var(--accent);
    border: 1px solid rgba(99,102,241,0.3);
    border-radius: 4px;
    padding: 1px 6px;
    font-size: 11px;
    font-family: monospace;
    cursor: pointer;
    transition: background 0.15s ease;
}

.macro-pill:hover {
    background: rgba(99,102,241,0.3);
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .main-wrap { margin-left: 0; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Reusable layout classes ─────────────────────────────────── */
.page-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:24px; }
.page-title { font-size:20px; font-weight:600; color:var(--text-primary); }
.back-link { font-size:14px; color:var(--text-secondary); text-decoration:none; }
.back-link:hover { color:var(--text-primary); }

.panel { background:var(--bg-surface); border:1px solid var(--border); border-radius:16px; padding:24px; max-width:672px; }
.panel-full { background:var(--bg-surface); border:1px solid var(--border); border-radius:16px; padding:24px; }

.form { display:flex; flex-direction:column; gap:16px; }
.grid-2 { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.grid-3 { display:grid; grid-template-columns:1fr 1fr 1fr; gap:16px; }

.label { display:block; font-size:14px; color:var(--text-secondary); margin-bottom:4px; }
.required { color:var(--badge-red-text); }

.input, .select, .textarea {
    width:100%;
    background:var(--bg-input);
    border:1px solid var(--border-input);
    border-radius:8px;
    padding:10px 16px;
    font-size:14px;
    color:var(--text-primary);
    outline:none;
    transition:border-color 0.15s;
}
.input:focus, .select:focus, .textarea:focus { border-color:var(--accent); }
.textarea { resize:vertical; }

.btn-row { display:flex; gap:12px; padding-top:8px; }

.btn-primary { background:var(--accent); color:#fff; font-weight:600; padding:10px 24px; border-radius:8px; font-size:14px; border:none; cursor:pointer; text-decoration:none; display:inline-block; }
.btn-primary:hover { background:var(--accent-hover); }
.btn-secondary { background:var(--bg-card); color:var(--text-secondary); font-weight:600; padding:10px 24px; border-radius:8px; font-size:14px; border:1px solid var(--border); cursor:pointer; text-decoration:none; display:inline-block; }
.btn-secondary:hover { color:var(--text-primary); }
.btn-danger { background:rgba(239,68,68,0.15); color:var(--badge-red-text); font-weight:600; padding:10px 24px; border-radius:8px; font-size:14px; border:1px solid rgba(239,68,68,0.3); cursor:pointer; text-decoration:none; display:inline-block; }
.btn-sm { padding:6px 14px; font-size:13px; }
.btn-success { background:rgba(34,197,94,0.15); color:var(--badge-green-text); font-weight:600; padding:10px 24px; border-radius:8px; font-size:14px; border:1px solid rgba(34,197,94,0.3); cursor:pointer; text-decoration:none; display:inline-block; }

.table-wrap { background:var(--bg-surface); border:1px solid var(--border); border-radius:16px; overflow:hidden; }
table { width:100%; border-collapse:collapse; }
thead th { text-align:left; padding:12px 20px; font-size:13px; font-weight:600; color:var(--text-muted); border-bottom:1px solid var(--table-border); }
tbody td { padding:14px 20px; font-size:14px; border-bottom:1px solid var(--table-border); color:var(--text-primary); }
tbody tr:last-child td { border-bottom:none; }
tbody tr:hover td { background:var(--table-hover); }

.badge { display:inline-flex; align-items:center; padding:3px 10px; border-radius:999px; font-size:12px; font-weight:600; }
.badge-green { background:var(--badge-green-bg); color:var(--badge-green-text); }
.badge-red { background:var(--badge-red-bg); color:var(--badge-red-text); }
.badge-yellow { background:var(--badge-yellow-bg); color:var(--badge-yellow-text); }
.badge-gray { background:var(--badge-gray-bg); color:var(--badge-gray-text); }

.stats-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(160px,1fr)); gap:16px; margin-bottom:24px; }
.stat-card { background:var(--bg-surface); border:1px solid var(--border); border-radius:16px; padding:24px; }
.stat-label { font-size:12px; font-weight:600; text-transform:uppercase; letter-spacing:0.05em; color:var(--text-muted); margin-bottom:8px; }
.stat-value { font-size:28px; font-weight:700; color:var(--text-primary); }
.stat-sub { font-size:12px; color:var(--text-muted); margin-top:6px; }

.mono { font-family:'SF Mono','Fira Code',monospace; font-size:12px; color:var(--accent); }
.text-link { color:var(--accent); text-decoration:none; }
.text-link:hover { text-decoration:underline; }
.text-muted { color:var(--text-muted); }
.text-success { color:var(--badge-green-text); }

.hint { font-size:12px; color:var(--text-muted); margin-top:4px; }

.macro-pill { display:inline-block; background:rgba(99,102,241,0.15); color:var(--accent); border:1px solid rgba(99,102,241,0.3); border-radius:4px; padding:1px 6px; font-size:11px; font-family:monospace; cursor:pointer; margin-right:4px; }
.macro-pill:hover { background:rgba(99,102,241,0.3); }

.action-row { display:flex; gap:8px; align-items:center; }

.empty-state { text-align:center; color:var(--text-muted); padding:40px; }