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

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #18181b;
    --bg-tertiary: #1e1e23;
    --bg-hover: #27272a;
    --border: #27272a;
    --border-light: #3f3f46;
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --accent-bg: rgba(99, 102, 241, 0.1);
    --success: #22c55e;
    --success-bg: rgba(34, 197, 94, 0.1);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: 0.15s ease;
}

html, body { height: 100%; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
}

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

/* Sidebar */
.sidebar {
    width: 260px;
    min-width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

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

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-logo span { font-size: 22px; }

.sidebar-nav {
    padding: 12px;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    position: relative;
}

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

.nav-badge {
    position: absolute;
    right: 10px;
    background: var(--danger);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
}

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

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--bg-hover);
}

.user-name { font-weight: 500; font-size: 13px; }
.user-role { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

.logout-btn {
    margin-top: 12px;
    display: block;
    text-align: center;
    padding: 8px;
    border-radius: var(--radius);
    background: var(--bg-hover);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 12px;
    transition: all var(--transition);
}
.logout-btn:hover { background: var(--danger-bg); color: var(--danger); }

/* Main Content */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
}

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

.page-title {
    font-size: 22px;
    font-weight: 700;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-hover); color: var(--text-primary); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--border-light); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { opacity: 0.9; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.9; }
.btn-warning { background: var(--warning); color: #000; }
.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 15px; }

/* Cards */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.card + .card { margin-top: 12px; }

/* Request Cards */
.request-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 16px;
}

.request-card:hover { border-color: var(--border-light); background: var(--bg-tertiary); }
.request-card + .request-card { margin-top: 8px; }

.request-card-body { flex: 1; min-width: 0; }

.request-card-title {
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.request-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-muted);
}

.request-card-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

/* Status badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-draft { background: var(--bg-hover); color: var(--text-muted); }
.badge-pending { background: var(--warning-bg); color: var(--warning); }
.badge-approved { background: var(--success-bg); color: var(--success); }
.badge-rejected { background: var(--danger-bg); color: var(--danger); }
.badge-cancelled { background: var(--bg-hover); color: var(--text-muted); }

/* Priority badges */
.priority-low { color: var(--text-muted); }
.priority-normal { color: var(--info); }
.priority-high { color: var(--warning); }
.priority-urgent { color: var(--danger); font-weight: 700; }

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

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

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: border-color var(--transition);
    outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--accent);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

.form-select {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%2371717a' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.form-row {
    display: flex;
    gap: 12px;
}

.form-row > * { flex: 1; }

/* Tables */
.table-container { overflow-x: auto; }

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

th, td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

tr:hover td { background: var(--bg-tertiary); }

/* Timeline */
.timeline { padding: 0; list-style: none; }

.timeline-item {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    position: relative;
}

.timeline-item + .timeline-item { border-top: 1px solid var(--border); }

.timeline-dot {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}

.timeline-dot.approved { background: var(--success-bg); color: var(--success); }
.timeline-dot.rejected { background: var(--danger-bg); color: var(--danger); }
.timeline-dot.returned { background: var(--warning-bg); color: var(--warning); }
.timeline-dot.pending { background: var(--bg-hover); color: var(--text-muted); }

.timeline-content { flex: 1; }
.timeline-header { font-weight: 500; font-size: 13px; }
.timeline-time { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.timeline-comment { font-size: 13px; color: var(--text-secondary); margin-top: 6px; padding: 8px 12px; background: var(--bg-primary); border-radius: var(--radius); }

/* Comments */
.comment {
    display: flex;
    gap: 12px;
    padding: 12px 0;
}
.comment + .comment { border-top: 1px solid var(--border); }
.comment-avatar { width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0; }
.comment-body { flex: 1; }
.comment-header { font-size: 12px; display: flex; gap: 8px; align-items: center; }
.comment-author { font-weight: 600; }
.comment-time { color: var(--text-muted); }
.comment-text { font-size: 13px; margin-top: 4px; color: var(--text-secondary); }

/* Empty state */
.empty-state {
    text-align: center;
    padding: 64px 20px;
    color: var(--text-muted);
}
.empty-state-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.5; }
.empty-state-text { font-size: 14px; }

/* Amount display */
.amount {
    font-weight: 600;
    font-size: 14px;
    font-variant-numeric: tabular-nums;
}

/* Detail page */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 24px;
}

.detail-section + .detail-section { margin-top: 24px; }
.detail-section-title { font-size: 13px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 12px; }

.detail-field { margin-bottom: 12px; }
.detail-field-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.detail-field-value { font-size: 14px; margin-top: 2px; }

/* Action buttons row */
.action-buttons {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

/* Loading */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 64px;
    color: var(--text-muted);
}

/* Tab navigation */
.tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
}

.tab {
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition);
}
.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* Admin route config */
.route-grid {
    display: grid;
    gap: 8px;
}

.route-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--bg-primary);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.route-level {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--accent-bg);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

/* Responsive */
@media (max-width: 1024px) {
    .detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .sidebar { display: none; }
    .main-content { padding: 16px; }
}

/* Blazor specific */
#blazor-error-ui {
    display: none;
    background: var(--danger-bg);
    color: var(--danger);
    padding: 12px;
    text-align: center;
}