/* ================================================================
   Drift Audit Tool — Global Styles
   Vercel-inspired dark UI: clean, high-contrast, generous spacing
   ================================================================ */

:root {
    --surface-0: #0a0a0a;
    --surface-1: #111111;
    --surface-2: #171717;
    --surface-3: #1e1e1e;
    --border: #262626;
    --border-hover: #333333;
    --text-primary: #ededed;
    --text-secondary: #a1a1a1;
    --text-muted: #666666;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --success: #22c55e;
    --error: #ef4444;
    --warning: #eab308;
    --info: #3b82f6;
    --radius: 10px;
    --radius-sm: 6px;
    --radius-lg: 14px;
}

html, body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--surface-0) !important;
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: -0.011em;
    font-size: 14px;
    line-height: 1.6;
}

/* ---- Override MudBlazor surfaces to match our palette ---- */
.mud-theme-dark {
    --mud-palette-surface: var(--surface-2) !important;
    --mud-palette-background: var(--surface-0) !important;
    --mud-palette-appbar-background: var(--surface-1) !important;
}

/* ---- Card / Paper styling ---- */
.mud-paper {
    border: 1px solid var(--border) !important;
    border-radius: var(--radius) !important;
    background: var(--surface-1) !important;
    box-shadow: none !important;
    transition: border-color 0.2s ease;
}

.mud-paper:hover {
    border-color: var(--border-hover) !important;
}

/* ---- Section headers inside cards ---- */
.section-label {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 12px;
}

/* ---- AppBar ---- */
.mud-appbar {
    background: var(--surface-1) !important;
    border-bottom: 1px solid var(--border) !important;
    box-shadow: none !important;
    backdrop-filter: blur(12px);
}

.mud-appbar .mud-typography {
    font-weight: 600 !important;
    letter-spacing: -0.02em;
}

/* ---- Table styling ---- */
.mud-table,
.mud-table-container {
    background: transparent !important;
    border-radius: var(--radius) !important;
}

.mud-table .mud-table-head th {
    font-size: 0.6875rem !important;
    font-weight: 600 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.05em !important;
    color: var(--text-muted) !important;
    background: var(--surface-2) !important;
    border-bottom: 1px solid var(--border) !important;
    padding: 10px 14px !important;
}

.mud-table .mud-table-body td {
    font-size: 0.8125rem !important;
    color: var(--text-secondary) !important;
    border-bottom: 1px solid rgba(255,255,255,0.04) !important;
    padding: 8px 14px !important;
}

.mud-table .mud-table-body tr:hover td {
    background: rgba(255, 255, 255, 0.02) !important;
}

.mud-table .mud-table-body td strong {
    color: var(--text-primary) !important;
    font-weight: 500;
}

/* ---- DataGrid polish ---- */
.mud-data-grid .mud-table-head th {
    font-size: 0.6875rem !important;
    font-weight: 600 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.05em !important;
    color: var(--text-muted) !important;
}

.mud-data-grid .mud-table-body tr {
    cursor: pointer;
    transition: background 0.15s ease;
}

.mud-data-grid .mud-table-body tr:hover {
    background: rgba(59, 130, 246, 0.04) !important;
}

/* ---- Chip styling ---- */
.mud-chip {
    font-size: 0.6875rem !important;
    font-weight: 500 !important;
    letter-spacing: 0.01em;
    border-radius: 999px !important;
    height: 24px !important;
}

.mud-chip.mud-chip-outlined {
    border-width: 1px !important;
}

/* ---- Button styling ---- */
.mud-button-root {
    border-radius: var(--radius-sm) !important;
    font-weight: 500 !important;
    font-size: 0.8125rem !important;
    letter-spacing: -0.006em;
    text-transform: none !important;
    transition: all 0.15s ease !important;
}

.mud-button-root.mud-button-filled {
    box-shadow: none !important;
}

.mud-button-root.mud-button-outlined {
    border-color: var(--border) !important;
}

.mud-button-root.mud-button-outlined:hover {
    border-color: var(--border-hover) !important;
    background: rgba(255, 255, 255, 0.03) !important;
}

/* ---- Input fields ---- */
.mud-input-outlined .mud-input-outlined-border {
    border-color: var(--border) !important;
    border-radius: var(--radius-sm) !important;
    transition: border-color 0.15s ease !important;
}

.mud-input-outlined:hover .mud-input-outlined-border,
.mud-input-outlined.mud-input-focused .mud-input-outlined-border {
    border-color: var(--accent) !important;
}

.mud-input .mud-input-label {
    font-size: 0.8125rem !important;
    color: var(--text-muted) !important;
}

.mud-input input,
.mud-input textarea {
    font-size: 0.875rem !important;
    color: var(--text-primary) !important;
}

/* ---- Progress bar ---- */
.mud-progress-linear {
    border-radius: 999px !important;
    height: 6px !important;
}

/* ---- Alerts ---- */
.mud-alert {
    border-radius: var(--radius-sm) !important;
    font-size: 0.8125rem !important;
}

/* ---- Timeline ---- */
.mud-timeline {
    padding-left: 4px !important;
}

.mud-timeline-item-body .mud-typography {
    font-size: 0.8125rem !important;
    line-height: 1.5;
}

/* ---- Snackbar ---- */
.mud-snackbar {
    border-radius: var(--radius) !important;
    font-size: 0.8125rem !important;
    border: 1px solid var(--border);
}

/* ---- Select ---- */
.mud-select .mud-menu {
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-sm) !important;
}

/* ================================================================
   Custom component classes
   ================================================================ */

/* Step timeline rows */
.step-row {
    cursor: pointer;
    transition: background-color 0.12s ease, border-color 0.12s ease;
    border-left: 3px solid transparent;
}

.step-row:hover {
    background-color: rgba(255, 255, 255, 0.025) !important;
}

.step-row.drift-step {
    border-left-color: var(--error);
    background-color: rgba(239, 68, 68, 0.03);
}

.step-row.drift-step:hover {
    background-color: rgba(239, 68, 68, 0.06) !important;
}

.step-row.repair-step {
    border-left-color: #a78bfa;
    background-color: rgba(167, 139, 250, 0.03);
}

.step-row.repair-step:hover {
    background-color: rgba(167, 139, 250, 0.06) !important;
}

.step-row.selected-step {
    background-color: rgba(59, 130, 246, 0.06) !important;
    border-left-color: var(--accent);
}

/* Verdict buttons */
.verdict-btn {
    min-width: 130px !important;
    height: 40px !important;
}

/* Keyboard shortcut badges */
.kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1px 6px;
    font-size: 0.625rem;
    font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-weight: 500;
    color: var(--text-muted);
    background: rgba(255,255,255,0.06);
    border-radius: 4px;
    border: 1px solid rgba(255,255,255,0.1);
    margin-left: 6px;
    line-height: 1;
    min-width: 18px;
    height: 18px;
}

/* Code blocks / monospace displays */
.mono-block {
    font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
    font-size: 0.75rem;
    line-height: 1.65;
    white-space: pre-wrap;
    word-break: break-all;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.mono-block.expected {
    background: rgba(34, 197, 94, 0.04);
    border-color: rgba(34, 197, 94, 0.12);
}

.mono-block.realized {
    background: rgba(239, 68, 68, 0.04);
    border-color: rgba(239, 68, 68, 0.12);
}

.mono-block.neutral {
    background: var(--surface-2);
}

/* Stat cards */
.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Page hero / title section */
.page-header {
    margin-bottom: 32px;
}

.page-header h4,
.page-header .mud-typography-h4 {
    font-weight: 700 !important;
    letter-spacing: -0.03em !important;
    font-size: 1.75rem !important;
    line-height: 1.2 !important;
}

.page-header .subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 6px;
}

/* Navigation bar */
.audit-nav {
    padding: 10px 16px;
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 20px;
}

.audit-nav .nav-counter {
    font-variant-numeric: tabular-nums;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Attribution bar rows */
.attr-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.attr-row .attr-label {
    min-width: 95px;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

.attr-row .attr-value {
    min-width: 42px;
    font-size: 0.75rem;
    font-weight: 500;
    text-align: right;
    font-variant-numeric: tabular-nums;
    color: var(--text-secondary);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.18);
}

/* Smooth page transitions */
.mud-main-content {
    animation: fadeIn 0.15s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---- Responsive tweaks ---- */
@media (max-width: 1200px) {
    html { font-size: 13px; }
}