/* ==========================================================================
   Design system — Platform Tes Panel Digital Malaria
   Loaded globally from base.html, BEFORE any page-level stylesheet.

   The MOOC pages defined the house style (teal/emerald identity, generous
   whitespace, soft card depth). This file lifts that language out of
   mooc.css so Beranda, Dasbor, PME and MOOC all share one vocabulary:

     tokens  ->  --brand-*, --ink-*, --surface, --border, --radius-*
     shell   ->  .app-navbar, .app-footer, .page-head
     blocks  ->  .page-hero, .ui-card, .stat-tile, .section-heading, .tile-icon
     bootstrap remap -> "primary" means brand teal, never Bootstrap blue

   Page stylesheets should consume these tokens rather than hard-coding hex.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */

:root {
    /* Brand ramp */
    --brand-900: #134e4a;
    --brand-800: #0f766e;
    --brand-700: #0f766e;
    --brand-600: #0d9488;
    --brand-500: #10b981;
    --brand-300: #5eead4;
    --brand-200: #99f6e4;
    --brand-100: #ccfbf1;
    --brand-50:  #f0fdfa;

    --brand-gradient: linear-gradient(135deg, #0d9488 0%, #10b981 100%);
    --brand-gradient-deep: linear-gradient(135deg, #134e4a 0%, #0d9488 55%, #10b981 100%);

    /* Neutrals */
    --ink: #1e293b;
    --ink-soft: #334155;
    --ink-muted: #64748b;
    --surface: #ffffff;
    --surface-sunken: #f8fafc;
    --page-bg: #f1f5f9;
    --border: #e2e8f0;
    --border-soft: #f1f5f9;

    /* Status (kept close to Bootstrap so badges stay legible) */
    --ok: #16a34a;
    --warn: #b45309;
    --warn-bg: #fffbeb;
    --danger: #dc2626;
    --info: #0891b2;

    /* Shape & depth */
    --radius-sm: 10px;
    --radius: 14px;
    --radius-lg: 18px;
    --shadow-sm: 0 2px 8px rgba(15, 118, 110, 0.06);
    --shadow: 0 8px 22px rgba(15, 23, 42, 0.07);
    --shadow-lift: 0 14px 30px rgba(13, 148, 136, 0.15);

    --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* --------------------------------------------------------------------------
   2. Bootstrap remap — "primary" is brand teal everywhere
   Bootstrap 5.3 bakes literal hex into component-scoped custom properties,
   so the ramp has to be re-pointed per component, not just on :root.
   -------------------------------------------------------------------------- */

:root {
    --bs-primary: #0d9488;
    --bs-primary-rgb: 13, 148, 136;
    --bs-link-color: #0f766e;
    --bs-link-color-rgb: 15, 118, 110;
    --bs-link-hover-color: #115e59;
    --bs-link-hover-color-rgb: 17, 94, 89;
    --bs-body-color: var(--ink);
    --bs-body-bg: var(--page-bg);
    --bs-secondary-color: var(--ink-muted);
    --bs-border-color: var(--border);
    --bs-border-radius: var(--radius-sm);
    --bs-border-radius-lg: var(--radius);
}

body {
    background: var(--page-bg);
    color: var(--ink);
}

.btn-primary {
    --bs-btn-bg: var(--brand-600);
    --bs-btn-border-color: var(--brand-600);
    --bs-btn-hover-bg: var(--brand-700);
    --bs-btn-hover-border-color: var(--brand-700);
    --bs-btn-active-bg: var(--brand-700);
    --bs-btn-active-border-color: var(--brand-700);
    --bs-btn-disabled-bg: var(--brand-600);
    --bs-btn-disabled-border-color: var(--brand-600);
    --bs-btn-focus-shadow-rgb: 13, 148, 136;
}

.btn-outline-primary {
    --bs-btn-color: var(--brand-700);
    --bs-btn-border-color: var(--brand-600);
    --bs-btn-hover-bg: var(--brand-600);
    --bs-btn-hover-border-color: var(--brand-600);
    --bs-btn-active-bg: var(--brand-700);
    --bs-btn-active-border-color: var(--brand-700);
    --bs-btn-disabled-color: var(--brand-600);
    --bs-btn-disabled-border-color: var(--brand-600);
    --bs-btn-focus-shadow-rgb: 13, 148, 136;
}

/* Buttons in general: match the card language rather than Bootstrap's default */
.btn {
    --bs-btn-border-radius: var(--radius-sm);
    font-weight: 500;
}

.progress { --bs-progress-bar-bg: var(--brand-600); }
.progress-bar { background-color: var(--brand-600); }
.progress-bar.bg-success { background-color: var(--ok) !important; }

.form-control:focus,
.form-select:focus {
    border-color: var(--brand-300);
    box-shadow: 0 0 0 0.2rem rgba(13, 148, 136, 0.15);
}

.form-check-input:checked {
    background-color: var(--brand-600);
    border-color: var(--brand-600);
}

.form-check-input:focus {
    border-color: var(--brand-300);
    box-shadow: 0 0 0 0.2rem rgba(13, 148, 136, 0.15);
}

.nav-tabs {
    border-bottom: 1px solid var(--border);
    gap: 0.25rem;
}
.nav-tabs .nav-link {
    color: var(--ink-muted);
    border: 1px solid transparent;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    font-weight: 500;
}
.nav-tabs .nav-link:hover { color: var(--brand-700); background: var(--brand-50); border-color: transparent; }
.nav-tabs .nav-link.active {
    color: var(--brand-700);
    background: var(--surface);
    border-color: var(--border) var(--border) var(--surface);
    font-weight: 600;
}

.page-link { color: var(--brand-700); }
.page-item.active .page-link { background-color: var(--brand-600); border-color: var(--brand-600); }

.accordion-button:not(.collapsed) {
    background: var(--brand-50);
    color: var(--brand-700);
    box-shadow: none;
}
.accordion-button:focus { box-shadow: 0 0 0 0.2rem rgba(13, 148, 136, 0.15); }

.list-group-item.active {
    background-color: var(--brand-600);
    border-color: var(--brand-600);
}

.alert-primary {
    --bs-alert-color: var(--brand-800);
    --bs-alert-bg: var(--brand-50);
    --bs-alert-border-color: var(--brand-200);
}

/* --------------------------------------------------------------------------
   3. App shell — navbar, footer, page head
   -------------------------------------------------------------------------- */

.app-navbar {
    background: var(--brand-gradient);
    box-shadow: 0 2px 12px rgba(13, 148, 136, 0.22);
    padding-top: 0.7rem;
    padding-bottom: 0.7rem;
}

.app-navbar .navbar-brand {
    font-weight: 700;
    letter-spacing: -0.01em;
}

.app-navbar .nav-link {
    font-weight: 500;
    border-radius: 8px;
    padding-left: 0.75rem;
    padding-right: 0.75rem;
    transition: background 0.18s var(--ease), color 0.18s var(--ease);
}
.app-navbar .nav-link:hover,
.app-navbar .nav-link:focus-visible { background: rgba(255, 255, 255, 0.14); color: #fff; }
.app-navbar .nav-link.active { background: rgba(255, 255, 255, 0.2); color: #fff; }

.app-navbar .dropdown-menu {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 0.4rem;
}
.app-navbar .dropdown-item {
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    font-size: 0.93rem;
}
.app-navbar .dropdown-item:hover,
.app-navbar .dropdown-item:focus { background: var(--brand-50); color: var(--brand-700); }

.app-navbar .role-chip {
    background: rgba(255, 255, 255, 0.22);
    color: #fff;
    font-weight: 500;
    font-size: 0.72rem;
    padding: 0.2rem 0.5rem;
    border-radius: 50px;
}

.app-footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    color: var(--ink-muted);
    padding: 3rem 0 2.5rem;
    margin-top: 4rem;
}
.app-footer .footer-brand {
    font-weight: 700;
    color: var(--ink);
}
.app-footer .footer-heading {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--brand-700);
    margin-bottom: 0.75rem;
}
.app-footer a { color: var(--ink-muted); text-decoration: none; }
.app-footer a:hover { color: var(--brand-700); }
.app-footer .footer-divider {
    border-top: 1px solid var(--border);
    margin-top: 2rem;
    padding-top: 1.25rem;
    font-size: 0.85rem;
}

/* Page head: breadcrumb + title + optional actions, used on inner pages */
.page-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.page-head h1 {
    font-weight: 700;
    font-size: clamp(1.4rem, 2.4vw, 1.9rem);
    letter-spacing: -0.01em;
    margin-bottom: 0.25rem;
}
.page-head .page-sub {
    color: var(--ink-muted);
    margin-bottom: 0;
}
.page-head .breadcrumb {
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}
.breadcrumb-item + .breadcrumb-item::before { color: #cbd5e1; }

/* --------------------------------------------------------------------------
   4. Page hero — the MOOC banner, now available on every page
   -------------------------------------------------------------------------- */

.page-hero,
.mooc-hero {
    background: var(--brand-gradient-deep);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 2.5rem 2.5rem 2.25rem;
    position: relative;
    overflow: hidden;
}
.page-hero::after,
.mooc-hero::after {
    content: "";
    position: absolute;
    right: -80px;
    top: -80px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.07);
}
.page-hero::before,
.mooc-hero::before {
    content: "";
    position: absolute;
    right: 60px;
    bottom: -110px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
}
.page-hero > *,
.mooc-hero > * { position: relative; z-index: 1; }

.page-hero h1,
.mooc-hero h1 {
    font-weight: 800;
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    margin-bottom: 0.5rem;
}
.page-hero .hero-sub,
.mooc-hero .hero-sub {
    opacity: 0.92;
    max-width: 46rem;
    margin-bottom: 0;
}
.page-hero .hero-meta,
.mooc-hero .hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
    font-size: 0.9rem;
    opacity: 0.95;
}

/* Compact variant for dense admin screens */
.page-hero.hero-sm { padding: 1.75rem 2rem; }

/* Hero layout helpers */
.page-hero .hero-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
}
.page-hero .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* Breadcrumb and links sitting on the hero */
.page-hero .breadcrumb { margin-bottom: 0.6rem; font-size: 0.85rem; }
.page-hero .breadcrumb a { color: rgba(255, 255, 255, 0.82); text-decoration: none; }
.page-hero .breadcrumb a:hover { color: #fff; }
.page-hero .breadcrumb .breadcrumb-item.active { color: rgba(255, 255, 255, 0.72); }
.page-hero .breadcrumb-item + .breadcrumb-item::before { color: rgba(255, 255, 255, 0.45); }

/* Buttons on the hero */
.btn-on-hero {
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.35);
    color: #fff;
}
.btn-on-hero:hover,
.btn-on-hero:focus { background: rgba(255, 255, 255, 0.26); color: #fff; }
.btn-on-hero-solid {
    background: #fff;
    border: 1px solid #fff;
    color: var(--brand-700);
    font-weight: 600;
}
.btn-on-hero-solid:hover,
.btn-on-hero-solid:focus { background: var(--brand-50); color: var(--brand-800); }

/* Inline stats strip inside a hero */
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 2.25rem;
    margin-top: 1.5rem;
}
.hero-stat .hero-stat-value {
    font-size: 1.6rem;
    font-weight: 800;
    line-height: 1.15;
}
.hero-stat .hero-stat-label {
    font-size: 0.82rem;
    opacity: 0.85;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   5. Cards — one card look for courses, sessions and quick actions
   -------------------------------------------------------------------------- */

.ui-card,
.course-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.ui-card:hover,
.course-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lift);
}

/* Non-interactive panel: same skin, no hover lift */
.ui-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
}
.ui-panel > .ui-panel-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    color: var(--ink);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}
.ui-panel > .ui-panel-body { padding: 1.25rem; }
/* Flush wrapper for a table that should meet the panel edges */
.ui-panel > .ui-panel-table {
    padding: 0;
    border-radius: 0 0 16px 16px;
    overflow: hidden;
}

/* Accent rail on the left edge, for status-bearing cards */
.ui-card.accent { border-left: 4px solid var(--border); }
.ui-card.accent-brand { border-left-color: var(--brand-600); }
.ui-card.accent-warn { border-left-color: #f59e0b; }
.ui-card.accent-ok { border-left-color: var(--ok); }
.ui-card.accent-muted { border-left-color: #cbd5e1; }

/* Link cards (dashboard quick actions) */
a.ui-card {
    display: block;
    text-decoration: none;
    color: inherit;
}
a.ui-card:hover { color: inherit; }
a.ui-card:focus-visible {
    outline: 3px solid var(--brand-600);
    outline-offset: 2px;
}

/* Icon tile used inside cards */
.tile-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: #fff;
    background: var(--brand-gradient);
    flex-shrink: 0;
}
.tile-icon.lg { width: 60px; height: 60px; font-size: 1.6rem; border-radius: 14px; }
.tile-icon.tone-teal { background: var(--brand-gradient); }
.tile-icon.tone-deep { background: linear-gradient(135deg, #134e4a 0%, #0f766e 100%); }
.tile-icon.tone-emerald { background: linear-gradient(135deg, #059669 0%, #34d399 100%); }
.tile-icon.tone-cyan { background: linear-gradient(135deg, #0e7490 0%, #22d3ee 100%); }
.tile-icon.tone-amber { background: linear-gradient(135deg, #b45309 0%, #f59e0b 100%); }
.tile-icon.tone-slate { background: linear-gradient(135deg, #334155 0%, #64748b 100%); }

/* --------------------------------------------------------------------------
   6. Stat tiles
   -------------------------------------------------------------------------- */

.stat-tile {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.25rem 1.5rem;
    height: 100%;
}
.stat-tile .stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--brand-800);
    line-height: 1.2;
}
.stat-tile .stat-label {
    color: var(--ink-muted);
    font-size: 0.85rem;
}
.stat-tile .stat-icon {
    font-size: 1.35rem;
    color: var(--brand-600);
    margin-bottom: 0.35rem;
    display: block;
}
.stat-tile.tone-ok .stat-value,
.stat-tile.tone-ok .stat-icon { color: var(--ok); }
.stat-tile.tone-warn .stat-value,
.stat-tile.tone-warn .stat-icon { color: var(--warn); }
.stat-tile.tone-info .stat-value,
.stat-tile.tone-info .stat-icon { color: var(--info); }
.stat-tile.tone-danger .stat-value,
.stat-tile.tone-danger .stat-icon { color: var(--danger); }

/* --------------------------------------------------------------------------
   7. Section headings
   -------------------------------------------------------------------------- */

.section-heading {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 2.5rem 0 1.25rem;
}
.section-heading:first-child { margin-top: 0; }
.section-heading .section-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--brand-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.section-heading h2,
.section-heading h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0;
    color: var(--ink);
}
.section-heading .section-sub {
    font-size: 0.88rem;
    color: var(--ink-muted);
    margin: 0.1rem 0 0;
}

.section-kicker {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--brand-600);
}

/* --------------------------------------------------------------------------
   8. Tables inside panels
   -------------------------------------------------------------------------- */

.ui-panel .table,
.ui-card .table { margin-bottom: 0; }

.ui-panel .table > thead th,
.ui-card .table > thead th {
    background: var(--surface-sunken);
    color: var(--ink-muted);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
.ui-panel .table > tbody td,
.ui-card .table > tbody td {
    vertical-align: middle;
    border-color: var(--border-soft);
}
.table-hover > tbody > tr:hover > * { --bs-table-accent-bg: var(--brand-50); background-color: var(--brand-50); }

/* Empty states */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--ink-muted);
}
.empty-state .empty-icon {
    font-size: 3rem;
    color: #cbd5e1;
    display: block;
    margin-bottom: 0.75rem;
}
.empty-state h3 { font-size: 1.15rem; font-weight: 700; color: var(--ink); }

/* --------------------------------------------------------------------------
   9. Small shared bits
   -------------------------------------------------------------------------- */

/* Badge that reads as brand rather than Bootstrap blue */
.badge-brand {
    background: var(--brand-100);
    color: var(--brand-800);
    font-weight: 600;
}

/* Pill chip used for roles / metadata */
.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.85rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    background: var(--brand-50);
    color: var(--brand-800);
    border: 1px solid var(--brand-100);
}
.chip-solid {
    background: var(--brand-gradient);
    color: #fff;
    border-color: transparent;
}

/* Highlight band used for time / countdown boxes */
.callout-band {
    background: var(--brand-gradient);
    color: #fff;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    text-align: center;
}
.callout-band.warning { background: linear-gradient(135deg, #f59e0b 0%, #dc2626 100%); }
.callout-band small { opacity: 0.9; }

@media (max-width: 767.98px) {
    .page-hero,
    .mooc-hero { padding: 1.75rem 1.35rem; }
    .page-hero.hero-sm { padding: 1.35rem; }
    .app-footer { padding: 2.25rem 0 2rem; margin-top: 2.5rem; }
    .section-heading { margin-top: 2rem; }
}

@media (prefers-reduced-motion: reduce) {
    .ui-card,
    .course-card,
    .btn,
    .app-navbar .nav-link { transition: none; }
    .ui-card:hover,
    .course-card:hover { transform: none; }
}