/* ═══════════════════════════════════════════════════════════════
   IGH DrawGen — Industrial Blueprint Design System
   A precision-engineered dark interface for steel fabrication
   ═══════════════════════════════════════════════════════════════ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@300;400;500&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* ── Design Tokens ── */
:root {
    /* Surfaces */
    --bg-void: #080c14;
    --bg-deep: #0c1220;
    --bg-base: #0f1724;
    --bg-raised: #141e30;
    --bg-surface: #1a2640;
    --bg-elevated: #1f2f4d;
    --bg-hover: #253654;

    /* Borders */
    --border-subtle: rgba(56, 97, 150, 0.2);
    --border-default: rgba(56, 97, 150, 0.35);
    --border-strong: rgba(56, 97, 150, 0.5);
    --border-accent: rgba(59, 130, 246, 0.6);

    /* Text */
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-faint: #475569;
    --text-inverse: #0f1724;

    /* Accent — Industrial Amber */
    --amber-50: #fffbeb;
    --amber-100: #fef3c7;
    --amber-200: #fde68a;
    --amber-300: #fcd34d;
    --amber-400: #fbbf24;
    --amber-500: #f59e0b;
    --amber-600: #d97706;
    --amber-700: #b45309;

    /* Steel Blue */
    --blue-400: #60a5fa;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;

    /* Status */
    --status-ok: #22c55e;
    --status-ok-dim: rgba(34, 197, 94, 0.15);
    --status-warn: #f59e0b;
    --status-warn-dim: rgba(245, 158, 11, 0.15);
    --status-error: #ef4444;
    --status-error-dim: rgba(239, 68, 68, 0.15);
    --status-info: #3b82f6;
    --status-info-dim: rgba(59, 130, 246, 0.15);

    /* Typography */
    --font-display: 'Outfit', system-ui, sans-serif;
    --font-mono: 'DM Mono', 'Fira Code', monospace;
    --font-body: 'Outfit', system-ui, sans-serif;

    /* Spacing */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 6px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 150ms var(--ease-out);
    --transition-base: 250ms var(--ease-out);
}

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

html {
    background: var(--bg-void) !important;
    scrollbar-color: var(--bg-elevated) var(--bg-deep);
}

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    background: var(--bg-base);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

/* ── Blueprint Grid Background ── */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(56, 97, 150, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 97, 150, 0.04) 1px, transparent 1px),
        linear-gradient(rgba(56, 97, 150, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 97, 150, 0.08) 1px, transparent 1px);
    background-size: 20px 20px, 20px 20px, 100px 100px, 100px 100px;
}

body > * {
    position: relative;
    z-index: 1;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--bg-elevated); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--bg-hover); }

/* ── Navigation ── */
.nav-bar {
    background: var(--bg-deep);
    border-bottom: 1px solid var(--border-default);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 50;
}

.nav-brand {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--amber-500), var(--amber-600));
    display: flex;
    align-items: center;
    justify-content: center;
    clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 0.875rem;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
    letter-spacing: 0.02em;
}

.nav-link:hover {
    color: var(--text-primary);
    border-color: var(--border-subtle);
    background: var(--bg-raised);
}

.nav-link-admin {
    color: var(--amber-400);
}
.nav-link-admin:hover {
    color: var(--amber-300);
    border-color: rgba(245, 158, 11, 0.2);
    background: rgba(245, 158, 11, 0.06);
}

.nav-user {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.nav-role-badge {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.2rem 0.5rem;
    border: 1px solid;
}

.nav-role-admin {
    color: var(--amber-400);
    border-color: rgba(245, 158, 11, 0.3);
    background: rgba(245, 158, 11, 0.08);
}
.nav-role-drafter {
    color: var(--blue-400);
    border-color: rgba(96, 165, 250, 0.3);
    background: rgba(96, 165, 250, 0.08);
}
.nav-role-viewer {
    color: var(--text-muted);
    border-color: var(--border-subtle);
    background: var(--bg-raised);
}

/* ── Cards & Panels ── */
.card {
    background: var(--bg-raised);
    border: 1px solid var(--border-default);
    clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
    padding: 1.5rem;
    transition: border-color var(--transition-fast);
}

.card:hover {
    border-color: var(--border-strong);
}

.card-flat {
    background: var(--bg-raised);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
}

/* ── Stat Cards ── */
.stat-card {
    background: var(--bg-raised);
    border: 1px solid var(--border-default);
    padding: 1.25rem 1.5rem;
    position: relative;
    overflow: hidden;
    clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 0 100%);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
}

.stat-card-default::before { background: var(--border-accent); }
.stat-card-ok::before { background: var(--status-ok); }
.stat-card-error::before { background: var(--status-error); }
.stat-card-warn::before { background: var(--status-warn); }

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 400;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.1;
    margin-top: 0.25rem;
}

/* ── Headings ── */
.page-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.75rem;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.page-subtitle {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.section-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.0625rem;
    color: var(--text-primary);
    letter-spacing: 0.01em;
}

/* ── Buttons ── */
.btn {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    padding: 0.625rem 1.25rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--amber-500), var(--amber-600));
    color: var(--text-inverse);
    clip-path: polygon(0 0, calc(100% - 4px) 0, 100% 4px, 100% 100%, 4px 100%, 0 calc(100% - 4px));
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--amber-400), var(--amber-500));
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.25);
}

.btn-secondary {
    background: var(--bg-surface);
    color: var(--text-primary);
    border-color: var(--border-default);
}
.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--border-strong);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-subtle);
}
.btn-ghost:hover {
    color: var(--text-primary);
    background: var(--bg-raised);
    border-color: var(--border-default);
}

.btn-danger {
    background: transparent;
    color: var(--status-error);
    border-color: rgba(239, 68, 68, 0.3);
}
.btn-danger:hover {
    background: var(--status-error-dim);
    border-color: rgba(239, 68, 68, 0.5);
}

.btn-sm {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
}

.btn-lg {
    font-size: 0.9375rem;
    padding: 0.875rem 1.75rem;
}

.btn:disabled, .btn[disabled] {
    opacity: 0.35;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ── Form Controls ── */
.input, .select, .textarea {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-primary);
    background: var(--bg-deep);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    width: 100%;
    transition: all var(--transition-fast);
    outline: none;
}

.input:focus, .select:focus, .textarea:focus {
    border-color: var(--amber-500);
    box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.15);
}

.input::placeholder {
    color: var(--text-faint);
    font-style: italic;
}

.form-label {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.375rem;
    display: block;
}

.form-hint {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--text-faint);
    margin-top: 0.25rem;
}

/* Checkboxes & Radios */
.checkbox, .radio {
    appearance: none;
    width: 1rem;
    height: 1rem;
    border: 1.5px solid var(--border-strong);
    background: var(--bg-deep);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.checkbox { border-radius: 2px; }
.radio { border-radius: 50%; }

.checkbox:checked, .radio:checked {
    background: var(--amber-500);
    border-color: var(--amber-500);
}

.checkbox:checked {
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='%230f1724' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3E%3C/svg%3E");
}

.radio:checked {
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='%230f1724' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='8' cy='8' r='3'/%3E%3C/svg%3E");
}

/* File input */
.file-input {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-secondary);
}
.file-input::file-selector-button {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--amber-400);
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.3);
    padding: 0.375rem 0.75rem;
    margin-right: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}
.file-input::file-selector-button:hover {
    background: rgba(245, 158, 11, 0.15);
}

/* ── Tables ── */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
}

.data-table thead {
    background: var(--bg-deep);
    border-bottom: 1px solid var(--border-default);
}

.data-table thead th {
    font-size: 0.625rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    padding: 0.75rem 1.25rem;
    text-align: left;
    white-space: nowrap;
}

.data-table tbody tr {
    border-bottom: 1px solid var(--border-subtle);
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: rgba(56, 97, 150, 0.06);
}

.data-table td {
    padding: 0.875rem 1.25rem;
    white-space: nowrap;
    color: var(--text-secondary);
}

.data-table .cell-primary {
    color: var(--text-primary);
    font-weight: 500;
}

/* ── Status Badges ── */
.badge {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.2rem 0.6rem;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    border: 1px solid;
}

.badge-ok {
    color: var(--status-ok);
    border-color: rgba(34, 197, 94, 0.3);
    background: var(--status-ok-dim);
}
.badge-warn {
    color: var(--status-warn);
    border-color: rgba(245, 158, 11, 0.3);
    background: var(--status-warn-dim);
}
.badge-error {
    color: var(--status-error);
    border-color: rgba(239, 68, 68, 0.3);
    background: var(--status-error-dim);
}
.badge-info {
    color: var(--blue-400);
    border-color: rgba(96, 165, 250, 0.3);
    background: var(--status-info-dim);
}
.badge-neutral {
    color: var(--text-muted);
    border-color: var(--border-subtle);
    background: var(--bg-surface);
}

/* LED indicator dot */
.led {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}
.led-ok { background: var(--status-ok); box-shadow: 0 0 6px var(--status-ok); }
.led-warn { background: var(--status-warn); box-shadow: 0 0 6px var(--status-warn); }
.led-error { background: var(--status-error); box-shadow: 0 0 6px var(--status-error); }
.led-info { background: var(--blue-400); box-shadow: 0 0 6px var(--blue-400); }
.led-neutral { background: var(--text-faint); }

/* Pulsing LED for processing */
.led-pulse {
    animation: led-pulse 2s ease-in-out infinite;
}
@keyframes led-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* ── Drop Zone ── */
.drop-zone {
    border: 2px dashed var(--border-default);
    background: var(--bg-raised);
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
}

.drop-zone::before {
    content: '';
    position: absolute;
    inset: -2px;
    border: 2px dashed transparent;
    pointer-events: none;
    transition: border-color var(--transition-base);
}

.drop-zone:hover, .drop-zone-active {
    border-color: var(--amber-500) !important;
    background: rgba(245, 158, 11, 0.04) !important;
}

.drop-zone:hover::before, .drop-zone-active::before {
    border-color: rgba(245, 158, 11, 0.2);
}

/* ── Sheet Size Cards ── */
.sheet-size-card input:checked + div {
    border-color: var(--amber-500) !important;
    background: rgba(245, 158, 11, 0.06) !important;
    box-shadow: 0 0 0 1px var(--amber-500);
}

.sheet-size-card div {
    border: 2px solid var(--border-default);
    background: var(--bg-raised);
    padding: 1rem;
    text-align: center;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.sheet-size-card div:hover {
    border-color: var(--border-strong);
    background: var(--bg-surface);
}

/* ── Progress Bar ── */
.progress-track {
    background: var(--bg-deep);
    border: 1px solid var(--border-subtle);
    height: 6px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--amber-600), var(--amber-400));
    transition: width 0.3s var(--ease-out);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255,255,255,0.15) 50%,
        transparent 100%
    );
    animation: progress-shine 1.5s ease-in-out infinite;
}

@keyframes progress-shine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ── Spinner ── */
.spinner {
    display: inline-block;
    width: 1em;
    height: 1em;
    border: 2px solid var(--border-default);
    border-top-color: var(--amber-500);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-lg {
    width: 3rem;
    height: 3rem;
    border-width: 3px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ── Alert Boxes ── */
.alert {
    border-left: 3px solid;
    padding: 1rem 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    background: var(--bg-raised);
}

.alert-error {
    border-color: var(--status-error);
    color: #fca5a5;
    background: var(--status-error-dim);
}

.alert-warn {
    border-color: var(--status-warn);
    color: var(--amber-200);
    background: var(--status-warn-dim);
}

.alert-ok {
    border-color: var(--status-ok);
    color: #86efac;
    background: var(--status-ok-dim);
}

/* ── Details/Collapsible ── */
details {
    border: 1px solid var(--border-default);
    background: var(--bg-raised);
}

details summary {
    cursor: pointer;
    padding: 1rem 1.5rem;
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--text-primary);
    transition: background var(--transition-fast);
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

details summary::-webkit-details-marker { display: none; }

details summary::before {
    content: '>';
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    transition: transform var(--transition-fast);
}

details[open] summary::before {
    transform: rotate(90deg);
}

details summary:hover {
    background: var(--bg-surface);
}

/* ── Pagination ── */
.pagination-link {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    padding: 0.375rem 0.75rem;
    border: 1px solid var(--border-subtle);
    background: var(--bg-raised);
    text-decoration: none;
    transition: all var(--transition-fast);
}
.pagination-link:hover {
    border-color: var(--border-default);
    color: var(--text-primary);
    background: var(--bg-surface);
}

/* ── Link Styles ── */
.link-primary {
    color: var(--amber-400);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    transition: color var(--transition-fast);
}
.link-primary:hover {
    color: var(--amber-300);
    text-decoration: underline;
}

.link-action {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-decoration: none;
    padding: 0.125rem 0;
    border-bottom: 1px solid transparent;
    transition: all var(--transition-fast);
}

.link-view { color: var(--amber-400); }
.link-view:hover { color: var(--amber-300); border-color: var(--amber-400); }
.link-ok { color: var(--status-ok); }
.link-ok:hover { color: #4ade80; border-color: var(--status-ok); }
.link-info { color: var(--blue-400); }
.link-info:hover { color: #93bbfd; border-color: var(--blue-400); }
.link-warn { color: var(--status-warn); }
.link-warn:hover { color: var(--amber-300); border-color: var(--status-warn); }
.link-error { color: var(--status-error); }
.link-error:hover { color: #f87171; border-color: var(--status-error); }

/* ── Search Input ── */
.search-input {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-primary);
    background: var(--bg-deep);
    border: 1px solid var(--border-subtle);
    padding: 0.375rem 0.75rem 0.375rem 2rem;
    outline: none;
    transition: all var(--transition-fast);
    width: 16rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 0.5rem center;
    background-size: 14px 14px;
}

.search-input:focus {
    border-color: var(--amber-500);
    box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.12);
}

/* ── Login Page ── */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-base);
    position: relative;
}

.login-card {
    background: var(--bg-raised);
    border: 1px solid var(--border-default);
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    position: relative;
    clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--amber-600), var(--amber-400), var(--amber-600));
}

/* ── Template Cards ── */
.template-card {
    background: var(--bg-raised);
    border: 1px solid var(--border-default);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.template-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.template-thumb {
    background: var(--bg-deep);
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--border-subtle);
}

/* ── Filter Pills ── */
.filter-pill {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    padding: 0.25rem 0.75rem;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    letter-spacing: 0.05em;
}

.filter-pill:hover {
    border-color: var(--border-default);
    color: var(--text-primary);
    background: var(--bg-surface);
}

.filter-pill-active {
    background: rgba(245, 158, 11, 0.1) !important;
    border-color: rgba(245, 158, 11, 0.4) !important;
    color: var(--amber-400) !important;
}

/* ── Back Link ── */
.back-link {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    margin-bottom: 1rem;
    transition: color var(--transition-fast);
}
.back-link:hover {
    color: var(--text-secondary);
}

/* ── Corner Marks (decorative) ── */
.corner-marks {
    position: relative;
}
.corner-marks::before,
.corner-marks::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    border-style: solid;
    border-color: var(--border-default);
    pointer-events: none;
}
.corner-marks::before {
    top: -1px;
    left: -1px;
    border-width: 1px 0 0 1px;
}
.corner-marks::after {
    bottom: -1px;
    right: -1px;
    border-width: 0 1px 1px 0;
}

/* ── Empty State ── */
.empty-state {
    text-align: center;
    padding: 3rem;
}

.empty-state-icon {
    width: 48px;
    height: 48px;
    color: var(--text-faint);
    margin: 0 auto 1rem;
}

/* ── HTMX Transitions ── */
.htmx-settling { opacity: 0.7; }
.htmx-swapping { opacity: 0.4; transition: opacity 0.15s ease-out; }

/* ── Page Load Animation ── */
@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fade-in-up 0.4s var(--ease-out) both;
}

.animate-in-delay-1 { animation-delay: 0.05s; }
.animate-in-delay-2 { animation-delay: 0.1s; }
.animate-in-delay-3 { animation-delay: 0.15s; }
.animate-in-delay-4 { animation-delay: 0.2s; }

/* ── Sticky sidebar ── */
.sticky-panel {
    position: sticky;
    top: 5rem;
}

/* ── Print ── */
@media print {
    nav, .no-print { display: none !important; }
    main { padding: 0 !important; max-width: 100% !important; }
    body::before { display: none; }
    body { background: white; color: black; }
    .card, .card-flat, .stat-card { border-color: #ccc; background: white; }
}

/* ── Responsive nav toggle (mobile) ── */
.nav-mobile-toggle {
    display: none;
    color: var(--text-secondary);
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .nav-mobile-toggle { display: block; }
    .nav-links-desktop { display: none !important; }
    .nav-links-mobile {
        display: flex;
        flex-direction: column;
        gap: 0.25rem;
        padding: 0.75rem 1rem;
        border-top: 1px solid var(--border-subtle);
        background: var(--bg-deep);
    }
}

/* ── Utility: text colors mapped to design tokens ── */
.text-primary { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-faint { color: var(--text-faint) !important; }
.text-amber { color: var(--amber-400) !important; }
.text-status-ok { color: var(--status-ok) !important; }
.text-status-error { color: var(--status-error) !important; }
.text-status-warn { color: var(--status-warn) !important; }