/* ============================================================================
   Practice Room — Anthropic-inspired theme (styling only)
   Warm cream palette, coral accent, Inter + Fraunces type, 8px spacing.
   ========================================================================== */

:root {
    /* Palette */
    --pr-bg: #F5F3EE;          /* page cream */
    --pr-surface: #FFFFFF;     /* cards / panels */
    --pr-surface-2: #FBFAF6;   /* subtle raise / hover */
    --pr-ink: #1A1A17;         /* primary text */
    --pr-ink-soft: #6B6862;    /* muted text */
    --pr-accent: #0E9BB8;      /* bright cyan */
    --pr-accent-strong: #0B7E96;
    --pr-accent-tint: #E1F1F5;
    --pr-border: #E7E3D9;      /* warm hairline */
    --pr-border-strong: #DAD5C8;

    --pr-success: #3F7A5E;
    --pr-success-tint: #E7F0EA;
    --pr-warn: #9A6B1E;
    --pr-warn-tint: #F5EBD8;
    --pr-danger: #B4453A;
    --pr-danger-tint: #F5E4E1;

    /* Radii */
    --pr-r-sm: 8px;
    --pr-r: 12px;
    --pr-r-lg: 16px;

    /* Shadow / focus / motion */
    --pr-shadow-sm: 0 1px 2px rgba(20, 20, 15, .05);
    --pr-shadow: 0 4px 16px rgba(20, 20, 15, .06);
    --pr-shadow-lg: 0 12px 32px rgba(20, 20, 15, .10);
    --pr-focus: 0 0 0 .2rem rgba(14, 155, 184, .28);
    --pr-t: 160ms ease;

    /* Map onto Bootstrap */
    --bs-primary: #0E9BB8;
    --bs-primary-rgb: 14, 155, 184;
    --bs-body-bg: var(--pr-bg);
    --bs-body-color: var(--pr-ink);
    --bs-border-color: var(--pr-border);
    --bs-border-radius: var(--pr-r);
    --bs-border-radius-sm: var(--pr-r-sm);
    --bs-link-color: var(--pr-accent);
    --bs-link-hover-color: var(--pr-accent-strong);
    --bs-emphasis-color: var(--pr-ink);
}

/* ---------- Base ---------- */
html {
    font-size: 15px;
    position: relative;
    min-height: 100%;
}

@media (min-width: 768px) {
    html { font-size: 16px; }
}

body {
    margin-bottom: 72px;
    background-color: var(--pr-bg);
    color: var(--pr-ink);
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    letter-spacing: -0.01em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, .navbar-brand, .display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
    font-family: "Fraunces", Georgia, "Times New Roman", serif;
    color: var(--pr-ink);
    letter-spacing: -0.02em;
    font-weight: 600;
    line-height: 1.15;
}

h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--pr-ink);
}

h1 { font-size: clamp(1.9rem, 1.4rem + 2vw, 2.6rem); margin-bottom: .5rem; }
p  { color: var(--pr-ink); }
.text-muted { color: var(--pr-ink-soft) !important; }
hr { border-color: var(--pr-border); opacity: 1; }

a {
    color: var(--pr-accent);
    text-decoration: none;
    transition: color var(--pr-t);
}
a:hover { color: var(--pr-accent-strong); }

::selection { background: var(--pr-accent-tint); }

/* ---------- Layout container ---------- */
.container,
.container-fluid {
    max-width: 1120px;
}

main[role="main"] { padding-top: .5rem; }

/* ---------- Focus (accessible, coral) ---------- */
.btn:focus, .btn:focus-visible, .btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus, .form-select:focus, .form-check-input:focus,
a:focus-visible, summary:focus-visible {
    outline: none;
    box-shadow: var(--pr-focus);
}

/* ---------- Navbar ---------- */
.navbar {
    background-color: rgba(245, 243, 238, .85) !important;
    backdrop-filter: saturate(180%) blur(8px);
    border-bottom: 1px solid var(--pr-border) !important;
    box-shadow: none !important;
    padding-top: .75rem;
    padding-bottom: .75rem;
}

.navbar-brand {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--pr-ink) !important;
    display: inline-flex;
    align-items: center;
    gap: .5rem;
}
.navbar-brand .brand-dot {
    width: 12px; height: 12px; border-radius: 50%;
    background: var(--pr-accent);
    display: inline-block;
}

.navbar .nav-link {
    color: var(--pr-ink-soft) !important;
    font-weight: 500;
    font-size: .95rem;
    padding: .4rem .85rem !important;
    margin: 0 .1rem;
    border-radius: var(--pr-r-sm);
    transition: color var(--pr-t), background-color var(--pr-t);
}
.navbar .nav-link:hover {
    color: var(--pr-ink) !important;
    background-color: rgba(14, 155, 184, .08);
}
.navbar .nav-link.active {
    color: var(--pr-accent-strong) !important;
    background-color: var(--pr-accent-tint);
}

.navbar-toggler {
    border-color: var(--pr-border);
    border-radius: var(--pr-r-sm);
}
.navbar-toggler:focus { box-shadow: var(--pr-focus); }

/* ---------- Buttons ---------- */
.btn {
    --bs-btn-border-radius: var(--pr-r-sm);
    font-weight: 500;
    letter-spacing: -0.01em;
    padding: .5rem 1.1rem;
    border-radius: var(--pr-r-sm);
    transition: transform var(--pr-t), box-shadow var(--pr-t),
                background-color var(--pr-t), border-color var(--pr-t), color var(--pr-t);
}
.btn:active { transform: translateY(1px); }

.btn-lg { padding: .8rem 1.5rem; font-size: 1.05rem; border-radius: var(--pr-r); }
.btn-sm { padding: .32rem .7rem; font-size: .82rem; }

.btn-primary {
    background-color: var(--pr-accent);
    border-color: var(--pr-accent);
    color: #fff;
    box-shadow: var(--pr-shadow-sm);
}
.btn-primary:hover, .btn-primary:focus {
    background-color: var(--pr-accent-strong);
    border-color: var(--pr-accent-strong);
    color: #fff;
    box-shadow: var(--pr-shadow);
}
.btn-primary:active { background-color: var(--pr-accent-strong) !important; border-color: var(--pr-accent-strong) !important; }

.btn-outline-primary {
    color: var(--pr-accent-strong);
    border-color: var(--pr-border-strong);
    background: var(--pr-surface);
}
.btn-outline-primary:hover, .btn-outline-primary:focus {
    background-color: var(--pr-accent);
    border-color: var(--pr-accent);
    color: #fff;
}

.btn-outline-secondary {
    color: var(--pr-ink);
    border-color: var(--pr-border-strong);
    background: var(--pr-surface);
}
.btn-outline-secondary:hover, .btn-outline-secondary:focus {
    background-color: var(--pr-ink);
    border-color: var(--pr-ink);
    color: #fff;
}

.btn-secondary {
    background-color: #EDEAE1;
    border-color: #EDEAE1;
    color: var(--pr-ink);
}
.btn-secondary:hover, .btn-secondary:focus {
    background-color: #E2DED2;
    border-color: #E2DED2;
    color: var(--pr-ink);
}

.btn-success {
    background-color: var(--pr-success);
    border-color: var(--pr-success);
}
.btn-success:hover, .btn-success:focus { background-color: #356850; border-color: #356850; }

.btn-danger {
    background-color: var(--pr-danger);
    border-color: var(--pr-danger);
}
.btn-danger:hover, .btn-danger:focus { background-color: #9E3A30; border-color: #9E3A30; }

.btn-outline-danger {
    color: var(--pr-danger);
    border-color: var(--pr-border-strong);
    background: var(--pr-surface);
}
.btn-outline-danger:hover, .btn-outline-danger:focus {
    background-color: var(--pr-danger);
    border-color: var(--pr-danger);
    color: #fff;
}

/* ---------- Cards ---------- */
.card {
    background-color: var(--pr-surface);
    border: 1px solid var(--pr-border);
    border-radius: var(--pr-r);
    box-shadow: var(--pr-shadow-sm);
}
.card-body { padding: 1.5rem; }
.card-title { font-weight: 600; }

/* ---------- Tables ---------- */
.table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--pr-ink);
    border-color: var(--pr-border);
    margin-bottom: 0;
}
.table > :not(caption) > * > * {
    padding: .85rem 1rem;
    border-bottom-color: var(--pr-border);
    background-color: transparent;
}
.table thead th {
    font-size: .74rem;
    text-transform: uppercase;
    letter-spacing: .06em;
    font-weight: 600;
    color: var(--pr-ink-soft);
    border-bottom: 1px solid var(--pr-border-strong);
}
.table.table-striped > tbody > tr:nth-of-type(odd) > * {
    --bs-table-accent-bg: transparent;
    background-color: transparent;
}
.table tbody tr { transition: background-color var(--pr-t); }
.table tbody tr:hover > * { background-color: var(--pr-surface-2); }
.table > :not(:first-child) { border-top: none; }

/* pattern sub-heading rows in Manage Questions */
.table tr.table-secondary > * {
    background-color: var(--pr-accent-tint) !important;
    color: var(--pr-accent-strong) !important;
    font-family: "Inter", sans-serif;
    text-transform: uppercase;
    letter-spacing: .05em;
    font-size: .78rem;
    border-bottom: none;
}

/* Wrap tables in a soft panel look */
.table-striped, .table.align-middle {
    background: var(--pr-surface);
    border: 1px solid var(--pr-border);
    border-radius: var(--pr-r);
    box-shadow: var(--pr-shadow-sm);
    overflow: hidden;
}

/* ---------- Forms / inputs ---------- */
.form-label { font-weight: 500; color: var(--pr-ink); margin-bottom: .4rem; }
.form-control, .form-select {
    background-color: var(--pr-surface);
    border: 1px solid var(--pr-border-strong);
    border-radius: var(--pr-r-sm);
    color: var(--pr-ink);
    padding: .6rem .8rem;
    transition: border-color var(--pr-t), box-shadow var(--pr-t);
}
.form-control::placeholder { color: #A8A498; }
.form-control:focus, .form-select:focus {
    border-color: var(--pr-accent);
    box-shadow: var(--pr-focus);
}
textarea.form-control { line-height: 1.6; }

.form-check-input {
    border-color: var(--pr-border-strong);
    transition: background-color var(--pr-t), border-color var(--pr-t);
}
.form-check-input:checked {
    background-color: var(--pr-accent);
    border-color: var(--pr-accent);
}
.form-check-input:focus { box-shadow: var(--pr-focus); border-color: var(--pr-accent); }
.form-switch .form-check-input { width: 2.4em; height: 1.3em; }

/* ---------- Badges ---------- */
.badge {
    font-weight: 600;
    letter-spacing: .01em;
    border-radius: 999px;
    padding: .38em .7em;
}
.badge.bg-success { background-color: var(--pr-success-tint) !important; color: var(--pr-success) !important; }
.badge.bg-warning { background-color: var(--pr-warn-tint) !important; color: var(--pr-warn) !important; }
.badge.bg-secondary { background-color: #EDEAE1 !important; color: var(--pr-ink-soft) !important; }
.badge.bg-danger { background-color: var(--pr-danger-tint) !important; color: var(--pr-danger) !important; }

/* ---------- Progress ---------- */
.progress {
    background-color: var(--pr-border);
    border-radius: 999px;
    overflow: hidden;
}
.progress-bar { background-color: var(--pr-accent); transition: width 300ms ease; }

/* ---------- List group (Start Interview) ---------- */
.list-group-item {
    background-color: var(--pr-surface);
    border-color: var(--pr-border);
    color: var(--pr-ink);
    padding: .9rem 1.1rem;
    transition: background-color var(--pr-t);
}
.list-group-item:first-child { border-top-left-radius: var(--pr-r); border-top-right-radius: var(--pr-r); }
.list-group-item:last-child { border-bottom-left-radius: var(--pr-r); border-bottom-right-radius: var(--pr-r); }
.list-group-item:hover { background-color: var(--pr-surface-2); }

/* ---------- Modal ---------- */
.modal-content {
    background-color: var(--pr-surface);
    border: 1px solid var(--pr-border);
    border-radius: var(--pr-r-lg);
    box-shadow: var(--pr-shadow-lg);
}
.modal-header, .modal-footer { border-color: var(--pr-border); padding: 1.25rem 1.5rem; }
.modal-body { padding: 1.5rem; }
.modal-title { font-weight: 600; }
.modal-backdrop.show { opacity: .35; background-color: #2A2620; }

/* ---------- Alerts ---------- */
.alert { border-radius: var(--pr-r); border: 1px solid transparent; }
.alert-danger { background-color: var(--pr-danger-tint); border-color: #EBC8C2; color: var(--pr-danger); }
.alert-warning { background-color: var(--pr-warn-tint); border-color: #E6D4AE; color: var(--pr-warn); }
.text-danger { color: var(--pr-danger) !important; }

/* ---------- Media / disclosure ---------- */
video {
    border-radius: var(--pr-r);
    border: 1px solid var(--pr-border);
    background: #1A1A17;
}
details > summary {
    cursor: pointer;
    color: var(--pr-accent-strong);
    font-weight: 500;
}
details > summary::marker { color: var(--pr-accent); }

/* ---------- Footer ---------- */
.footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    line-height: 72px;
    height: 72px;
    border-top: 1px solid var(--pr-border) !important;
    color: var(--pr-ink-soft);
    background: transparent;
}
.footer a { color: var(--pr-ink-soft); }
.footer a:hover { color: var(--pr-accent-strong); }

/* ---------- Dashboard hero + action cards (Home) ---------- */
.pr-hero { padding: 3.5rem 0 2.5rem; text-align: center; }
.pr-hero h1 { margin-bottom: .75rem; }
.pr-hero p { color: var(--pr-ink-soft); font-size: 1.1rem; max-width: 560px; margin: 0 auto; }

.pr-action-card {
    display: flex;
    flex-direction: column;
    gap: .5rem;
    height: 100%;
    padding: 1.75rem;
    background: var(--pr-surface);
    border: 1px solid var(--pr-border);
    border-radius: var(--pr-r);
    box-shadow: var(--pr-shadow-sm);
    color: var(--pr-ink);
    text-decoration: none;
    transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}
.pr-action-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--pr-shadow);
    border-color: var(--pr-border-strong);
    color: var(--pr-ink);
}
.pr-action-card .pr-icon {
    width: 44px; height: 44px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: var(--pr-r-sm);
    background: var(--pr-accent-tint);
    color: var(--pr-accent-strong);
    margin-bottom: .5rem;
}
.pr-action-card .pr-icon svg { width: 22px; height: 22px; }
.pr-action-card .pr-title { font-weight: 600; font-size: 1.1rem; }
.pr-action-card .pr-sub { color: var(--pr-ink-soft); font-size: .92rem; }
.pr-action-card .pr-arrow { color: var(--pr-accent); font-weight: 600; margin-top: auto; }

/* ---------- Empty states ---------- */
.pr-empty { color: var(--pr-ink-soft); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; }
    .pr-action-card:hover { transform: none; }
}