/* ========================================
   FALab LogCenter - Design System
   Clean, minimal, dark theme dashboard
   ======================================== */

:root {
    --bg-body: #0c0c14;
    --bg-sidebar: #12121c;
    --bg-card: #16161e;
    --bg-input: #0f0f17;
    --border: #1e1e2e;
    --border-light: #2a2a3a;
    --text-primary: #e8e8ed;
    --text-secondary: #8888a0;
    --text-muted: #555568;
    --accent: #6366f1;
    --accent-hover: #5254cc;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 2px 12px rgba(0,0,0,0.3);
    --sidebar-width: 256px;
    --transition: 0.2s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, 'Noto Sans TC', sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
}

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

/* ========== Login Page ========== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-body);
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    font-size: 40px;
    margin-bottom: 12px;
    color: var(--accent);
}

.login-header h1 {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 1px;
}

.login-header p {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ========== Sidebar ========== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    overflow-y: auto;
}

.sidebar-header {
    padding: 24px 20px 16px;
    border-bottom: 1px solid var(--border);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 22px;
    color: var(--accent);
}

.logo-text {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 0;
    overflow-y: auto;
}

.nav-section {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    padding: 16px 20px 6px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    transition: all var(--transition);
    border-left: 3px solid transparent;
}

.nav-item:hover {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.05);
}

.nav-item.active {
    color: var(--accent);
    background: rgba(99, 102, 241, 0.08);
    border-left-color: var(--accent);
}

.nav-icon {
    font-size: 14px;
    width: 20px;
    text-align: center;
    opacity: 0.7;
}

.nav-sub { padding-left: 28px; }
.nav-sub .nav-icon { font-size: 10px; }

.nav-add { color: var(--text-muted); }
.nav-add:hover { color: var(--accent); }

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--accent);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
}

.user-name { font-size: 13px; font-weight: 600; }
.user-role { font-size: 11px; color: var(--text-muted); }

.btn-logout {
    color: var(--text-muted);
    font-size: 18px;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.btn-logout:hover { color: var(--danger); background: rgba(239,68,68,0.1); }

/* ========== Content ========== */
.content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    padding: 0 32px 32px;
}

.content-header {
    padding: 24px 0 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}

.content-header h1 {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.content-body {
    max-width: 1200px;
}

/* ========== Cards ========== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 20px;
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}

.card-body {
    padding: 20px;
}

.card-danger {
    border-color: rgba(239, 68, 68, 0.2);
}
.card-danger .card-header {
    color: var(--danger);
}

/* ========== Stats Grid ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

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

.stat-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.stat-value-sm {
    font-size: 18px;
}

/* ========== Project Grid ========== */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.project-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: all var(--transition);
    color: var(--text-primary);
}

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.1);
    color: var(--text-primary);
}

.project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.project-card-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.project-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.project-stats {
    display: flex;
    gap: 20px;
    padding: 12px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.project-stat-value {
    display: block;
    font-size: 18px;
    font-weight: 700;
}

.project-stat-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-footer {
    padding-top: 10px;
    font-size: 12px;
}

/* ========== Field Grid ========== */
.field-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.field-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: all var(--transition);
    color: var(--text-primary);
}

.field-card:hover {
    border-color: var(--border-light);
    transform: translateY(-1px);
    color: var(--text-primary);
}

.field-card-type { margin-bottom: 8px; }
.field-card-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.field-card-value {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.1;
}

.field-card-value-sm {
    font-size: 16px;
    word-break: break-all;
}

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

.field-card-footer {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}

/* ========== Tables ========== */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.table td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    vertical-align: middle;
}

.table tbody tr:hover {
    background: rgba(99, 102, 241, 0.03);
}

.table-compact td { padding: 8px 12px; }
.table-compact th { padding: 10px 12px; }

.row-disabled { opacity: 0.4; }

.sort-link {
    color: var(--text-muted);
    text-decoration: none;
}
.sort-link:hover { color: var(--accent); }

/* ========== Forms ========== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

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

.form-group select {
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23888'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.form-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.form-row .form-group { flex: 1; min-width: 200px; }

.form-row-4 .form-group { min-width: 160px; }

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    padding: 16px 0;
}

.form-card { margin-bottom: 20px; }

.checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    cursor: pointer;
    padding: 6px 0;
    margin-right: 20px;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
}

.filter-form {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.filter-form .form-group {
    margin-bottom: 0;
    min-width: 140px;
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn:hover {
    color: var(--text-primary);
    border-color: var(--border-light);
    background: var(--bg-input);
}

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

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

.btn-danger {
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
    color: var(--danger);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-block {
    width: 100%;
    margin-top: 8px;
}

.btn-copy {
    font-size: 11px;
    padding: 4px 10px;
}

.action-group {
    display: flex;
    gap: 6px;
}

/* ========== Badges ========== */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-primary {
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent);
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.badge-muted {
    background: rgba(85, 85, 104, 0.15);
    color: var(--text-muted);
}

/* ========== Alerts ========== */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: slideIn 0.3s ease;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.alert-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 18px;
    cursor: pointer;
    opacity: 0.6;
}

.alert-close:hover { opacity: 1; }

@keyframes slideIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========== API Key Display ========== */
.api-key-display {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.api-key {
    background: var(--bg-input);
    border: 1px solid var(--border);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 13px;
    color: var(--accent);
    word-break: break-all;
    flex: 1;
    min-width: 200px;
}

.api-endpoint {
    display: flex;
    align-items: center;
    gap: 6px;
}

.api-endpoint code {
    font-size: 11px;
    color: var(--text-muted);
    background: var(--bg-input);
    padding: 4px 8px;
    border-radius: 4px;
    max-width: 280px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: inline-block;
}

/* ========== Code Block ========== */
.code-block {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    overflow-x: auto;
    font-size: 12px;
    line-height: 1.6;
    margin: 0;
}

.code-block code {
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    color: var(--text-secondary);
    white-space: pre;
}

/* ========== Toolbar ========== */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    gap: 12px;
    flex-wrap: wrap;
}

.toolbar-right {
    display: flex;
    gap: 8px;
}

/* ========== Empty State ========== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.3;
}

.empty-state h3 {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

/* ========== Pagination ========== */
.pagination {
    display: flex;
    gap: 4px;
    justify-content: center;
    padding: 20px 0;
    flex-wrap: wrap;
}

/* ========== Divider ========== */
.divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 20px 0;
}

/* ========== Utilities ========== */
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }

code {
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 12px;
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }

    .content {
        margin-left: 0;
        padding: 0 16px 16px;
    }

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

    .project-grid,
    .field-grid {
        grid-template-columns: 1fr;
    }

    .form-row { flex-direction: column; }
    .form-row .form-group { min-width: 100%; }
}