/* ── Brand design tokens ── */
:root {
    --lr-primary: var(--bs-primary);
    --lr-primary-dark: #003d91;
    --lr-primary-light: #e8f0fe;
    --lr-surface: #ffffff;
    --lr-surface-secondary: #f5f7fa;
    --lr-text-primary: #1a1a2e;
    --lr-text-secondary: #4a5568;
    --lr-text-tertiary: #718096;
    --lr-border: #e2e8f0;
    --lr-radius: 0.75rem;
    --lr-transition: 0.2s ease;
}

/* Body background — cards pop on subtle blue-gray */
body {
    background-color: var(--lr-surface-secondary);
}

/* ── Text utilities ── */
.text-lr-primary   { color: var(--lr-text-primary); }
.text-lr-secondary { color: var(--lr-text-secondary); }
.text-lr-tertiary  { color: var(--lr-text-tertiary); }

/* ── Homepage hero ── */
.hero-section {
    background: linear-gradient(135deg, var(--lr-primary-dark) 0%, var(--lr-primary) 100%);
    color: var(--lr-surface);
    padding: 4rem 0 3.5rem;
}
.hero-section .hero-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--lr-surface);
}
.hero-section .hero-subtitle {
    max-width: 38rem;
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.6;
}
.hero-section .hero-institutional {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.78);
    letter-spacing: 0.02em;
}
.hero-section .btn-hero {
    padding: 0.75rem 2.5rem;
    font-weight: 600;
    font-size: 1.05rem;
    border-radius: var(--lr-radius);
    background: var(--lr-surface);
    color: var(--lr-primary-dark);
    border: none;
    transition: transform var(--lr-transition), box-shadow var(--lr-transition);
}
.hero-section .btn-hero:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    color: var(--lr-primary-dark);
}
.hero-section .btn-hero:focus-visible {
    outline: 2px solid var(--lr-surface);
    outline-offset: 3px;
}

/* ── How it works steps ── */
.how-step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--lr-primary-light);
    color: var(--lr-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

/* ── Session preview cards (homepage) ── */
.session-card {
    border: 1px solid var(--lr-border);
    border-radius: var(--lr-radius);
    background: var(--lr-surface);
    padding: 1.25rem;
    transition: border-color var(--lr-transition), box-shadow var(--lr-transition);
}
.session-card:hover {
    border-color: var(--lr-primary);
    box-shadow: 0 4px 12px rgba(0, 61, 145, 0.1);
    box-shadow: 0 4px 12px color-mix(in srgb, var(--lr-primary) 10%, transparent);
}

/* ── Stepper ── */
.wizard-dot {
    width: 40px; height: 40px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 600; font-size: 0.875rem;
    transition: background-color var(--lr-transition), color var(--lr-transition), box-shadow var(--lr-transition);
}
.wizard-dot.pending { background: var(--bs-gray-200); color: var(--bs-gray-600); }
.wizard-dot.active { background: var(--bs-primary); color: var(--lr-surface); box-shadow: 0 0 0 4px var(--bs-primary-bg-subtle); }
.wizard-dot.done { background: var(--bs-success); color: var(--lr-surface); }
.wizard-line { height: 2px; background: var(--bs-gray-200); position: relative; top: 20px; align-self: flex-start; }
.wizard-line.done { background: var(--bs-success); }
.wizard-step-indicator { flex-shrink: 0; z-index: 1; cursor: default; }
.wizard-step-indicator.step-clickable { cursor: pointer; }
.wizard-step-label { font-size: 0.75rem; color: var(--bs-secondary-color); }
.wizard-step-label.active { font-weight: 600; color: var(--bs-body-color); }
.wizard-step-label.done { color: var(--bs-success); font-weight: 600; }

@media (max-width: 575.98px) {
    .wizard-dot { width: 32px; height: 32px; font-size: 0.75rem; }
    .wizard-line { top: 16px; }
    .wizard-step-indicator { padding: 6px; }
    /* Mobile stepper: show only the active label */
    .wizard-step-label { display: none; }
    .wizard-step-label.active { display: block; }
    .signature-canvas { height: 150px; }
}

/* Suppress focus ring on programmatically-focused headings */
h1[tabindex="-1"]:focus,
h2[tabindex="-1"]:focus,
h3[tabindex="-1"]:focus {
    outline: none;
}

/* ── Wizard step transitions ── */
.wizard-step {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity var(--lr-transition), transform var(--lr-transition);
    display: none;
}
.wizard-step.step-active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* ── Slot cards ── */
.slot-card {
    cursor: pointer;
    transition: border-color var(--lr-transition), box-shadow var(--lr-transition);
}
.slot-card:hover {
    border-color: var(--bs-primary) !important;
}
input[name="slot-radio"]:checked + .slot-card {
    border-color: var(--bs-primary) !important;
    box-shadow: 0 0 0 1px var(--bs-primary);
    background-color: var(--bs-primary-bg-subtle);
}

/* ── Focus indicators on custom radios (accessibility) ── */
input[name="slot-radio"]:focus-visible + .slot-card {
    outline: 2px solid var(--bs-primary);
    outline-offset: 2px;
}
.form-check input[type="radio"]:focus-visible + .form-check-label {
    outline: 2px solid var(--bs-primary);
    outline-offset: 2px;
}

/* Footer surface */
.footer-section {
    background-color: var(--lr-surface-secondary);
}

/* Signature canvas fixed height */
.signature-canvas {
    height: 200px;
}
#signature-canvas:focus-visible {
    outline: 3px solid var(--bs-primary);
    outline-offset: 2px;
}

/* Confirmation page success icon */
.success-icon-circle {
    width: 64px;
    height: 64px;
}

/* ── Empty state (no slots) ── */
.empty-state-icon {
    font-size: 3rem;
    color: var(--lr-text-tertiary);
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
    .wizard-step { transition: none; }
    .hero-section .btn-hero { transition: none; }
    .wizard-dot { transition: none; }
    .session-card { transition: none; }
    .slot-card { transition: none; }
}

/* Stack key-value tables on small screens */
@media (max-width: 575.98px) {
    .th-label,
    .th-label-lg {
        width: 100%;
        display: block;
        padding-bottom: 0;
    }
    .th-label + td,
    .th-label-lg + td {
        display: block;
        padding-top: 0;
        padding-bottom: 0.75rem;
    }
}

/* ── Print styles (confirmation page) ── */
@media print {
    .navbar, .footer-section { display: none; }
    .btn { display: none; }
    .card { box-shadow: none; border: 1px solid #ccc; }
}

/* ── Admin MUD ── */

/* Sidebar */
.admin-sidebar {
    width: 260px;
    background: var(--color-background-base-inverse-default) !important;
}
.admin-sidebar .offcanvas-body { background: var(--color-background-base-inverse-default); }
.admin-sidebar .sidebar-brand {
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: .5rem;
}
.admin-sidebar .nav-link {
    color: rgba(255,255,255,.65);
    border-radius: var(--border-radius-6);
    padding: .5rem .75rem;
    font-size: .875rem;
    display: flex;
    align-items: center;
    gap: .5rem;
    transition: color .15s, background .15s;
}
.admin-sidebar .nav-link:hover {
    color: rgba(255,255,255,.85);
    background: rgba(255,255,255,.05);
}
.admin-sidebar .nav-link.active {
    color: #fff;
    background: rgba(255,255,255,.1);
}

/* Header */
.admin-header {
    background: var(--color-background-base-default);
    border-bottom: var(--border-width-1) solid var(--color-border-base-default);
    box-shadow: var(--box-shadow-100);
    z-index: 10;
}

/* Main content area */
.admin-main {
    background: var(--color-background-base-secondary);
}

/* Table thead MUD tertiary */
.mud-thead th {
    font-size: .8125rem;
    font-weight: 500;
    color: var(--color-text-base-tertiary);
    border-bottom: var(--border-width-1) solid var(--color-border-base-default);
    background: transparent;
}

/* MUD badge variants */
.badge-mud-success {
    background: var(--color-background-success-secondary);
    color: var(--color-text-success-default);
}
.badge-mud-danger {
    background: var(--color-background-danger-secondary);
    color: var(--color-text-danger-default);
}
.badge-mud-warning {
    background: var(--color-background-warning-secondary);
    color: var(--color-text-warning-default);
}
.badge-mud-secondary {
    background: var(--color-background-base-tertiary);
    color: var(--color-text-base-secondary);
}
.badge-mud-brand {
    background: var(--color-background-brand-secondary);
    color: var(--color-text-brand-default);
}

/* MUD action button (compact) */
.btn-mud-action {
    background: var(--color-background-base-secondary);
    border: var(--border-width-1) solid var(--color-border-base-default);
    border-radius: var(--border-radius-6);
    padding: .375rem .5rem;
    font-size: .75rem;
    color: var(--color-text-base-secondary);
    transition: background .15s, color .15s;
}
.btn-mud-action:hover {
    background: var(--color-background-base-tertiary);
    color: var(--color-text-base-default);
}
.btn-mud-action-danger {
    background: var(--color-background-base-secondary);
    border: var(--border-width-1) solid var(--color-border-base-default);
    border-radius: var(--border-radius-6);
    padding: .375rem .5rem;
    font-size: .75rem;
    color: var(--color-text-danger-default);
    transition: background .15s;
}
.btn-mud-action-danger:hover {
    background: var(--color-background-danger-secondary);
}

/* KPI card label */
.kpi-label {
    font-size: .8125rem;
    color: var(--color-text-base-tertiary);
    margin-bottom: .25rem;
}
.kpi-value {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: .25rem;
}

/* Progress bar thin */
.progress-sm { height: 4px; }

/* Card MUD overrides */
.card-mud {
    border: var(--border-width-1) solid var(--color-border-base-default);
    border-radius: var(--border-radius-8);
    box-shadow: var(--box-shadow-100);
}

/* Avatar circle */
.avatar-circle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-background-brand-secondary);
    color: var(--color-text-brand-default);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: .75rem;
    font-weight: 600;
}

/* Form card wrapper */
.form-card {
    border: var(--border-width-1) solid var(--color-border-base-default);
    border-radius: var(--border-radius-8);
    box-shadow: var(--box-shadow-100);
    background: var(--color-background-base-default);
    padding: 1.5rem;
}

/* Import card header */
.import-card-header {
    background: var(--color-background-brand-secondary);
    color: var(--color-text-brand-default);
    padding: .75rem 1rem;
    border-bottom: var(--border-width-1) solid var(--color-border-base-default);
}