/* Adana Course v1.3.1 — Frontend Design System Consolidation
   Shared tokens, accessibility, responsive primitives and legacy compatibility. */
:root {
  --ac-font-sans: 'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --ac-font-display: 'Fraunces', Georgia, serif;
  --ac-color-canvas: #eef6ff;
  --ac-color-surface: #ffffff;
  --ac-color-surface-soft: #f8fbff;
  --ac-color-ink: #0f1b2d;
  --ac-color-text: #3d5478;
  --ac-color-muted: #7187a5;
  --ac-color-border: #dbe7f4;
  --ac-color-primary: #2563eb;
  --ac-color-primary-hover: #1d4ed8;
  --ac-color-primary-soft: #eff6ff;
  --ac-color-violet: #7c3aed;
  --ac-color-violet-soft: #ede9fe;
  --ac-color-success: #059669;
  --ac-color-success-soft: #ecfdf5;
  --ac-color-warning: #d97706;
  --ac-color-warning-soft: #fef3c7;
  --ac-color-danger: #e11d48;
  --ac-color-danger-soft: #fff1f2;
  --ac-color-teal: #0d9488;
  --ac-color-teal-soft: #f0fdfa;
  --ac-radius-xs: 8px;
  --ac-radius-sm: 11px;
  --ac-radius-md: 16px;
  --ac-radius-lg: 22px;
  --ac-shadow-xs: 0 2px 10px rgba(37, 99, 235, .07);
  --ac-shadow-sm: 0 5px 18px rgba(37, 99, 235, .09);
  --ac-shadow-md: 0 14px 38px rgba(37, 99, 235, .14);
  --ac-content-max: 1440px;
  --ac-focus-ring: 0 0 0 4px rgba(37, 99, 235, .2);
  --ac-transition-fast: 160ms ease;
  --ac-transition: 240ms cubic-bezier(.2,.8,.2,1);

  /* Compatibility aliases used by older page packs. */
  --sky: var(--ac-color-canvas);
  --white: var(--ac-color-surface);
  --ink: var(--ac-color-ink);
  --slate: var(--ac-color-text);
  --muted: var(--ac-color-muted);
  --border: var(--ac-color-border);
  --blue: var(--ac-color-primary);
  --blue-l: #3b82f6;
  --blue-xl: var(--ac-color-primary-soft);
  --violet: var(--ac-color-violet);
  --violet-l: var(--ac-color-violet-soft);
  --emerald: var(--ac-color-success);
  --emerald-l: var(--ac-color-success-soft);
  --amber: #f59e0b;
  --amber-d: var(--ac-color-warning);
  --amber-l: var(--ac-color-warning-soft);
  --rose: var(--ac-color-danger);
  --rose-l: var(--ac-color-danger-soft);
  --teal: var(--ac-color-teal);
  --teal-l: var(--ac-color-teal-soft);
  --shadow-sm: var(--ac-shadow-xs);
  --shadow-md: var(--ac-shadow-md);
}

html { min-width: 320px; scroll-behavior: smooth; }
body.ac-app { min-width: 320px; font-family: var(--ac-font-sans); text-rendering: optimizeLegibility; }
body.ac-admin-app { background: var(--ac-color-canvas); }
img, svg, video, canvas, iframe { max-width: 100%; }
img { height: auto; }
button, input, select, textarea { font: inherit; }
button, [role='button'], a, input, select, textarea { -webkit-tap-highlight-color: transparent; }

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--ac-color-primary);
  outline-offset: 3px;
  box-shadow: var(--ac-focus-ring);
}

.ac-sr-only {
  position: absolute !important; width: 1px !important; height: 1px !important;
  padding: 0 !important; margin: -1px !important; overflow: hidden !important;
  clip: rect(0,0,0,0) !important; white-space: nowrap !important; border: 0 !important;
}
.ac-page-shell { width: min(100%, var(--ac-content-max)); margin-inline: auto; padding: clamp(16px, 2.5vw, 34px); }
.ac-stack { display: flex; flex-direction: column; gap: var(--ac-stack-gap, 16px); }
.ac-cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--ac-cluster-gap, 10px); }
.ac-grid { display: grid; gap: var(--ac-grid-gap, 18px); grid-template-columns: repeat(auto-fit, minmax(min(100%, var(--ac-grid-min, 250px)), 1fr)); }
.ac-card { background: var(--ac-color-surface); border: 1px solid var(--ac-color-border); border-radius: var(--ac-radius-md); box-shadow: var(--ac-shadow-xs); }
.ac-card-pad { padding: clamp(16px, 2vw, 24px); }
.ac-title { font-family: var(--ac-font-display); color: var(--ac-color-ink); line-height: 1.16; letter-spacing: -.02em; }
.ac-muted { color: var(--ac-color-muted); }
.ac-divider { height: 1px; background: var(--ac-color-border); border: 0; }
.ac-empty-state { padding: clamp(28px, 5vw, 56px) 20px; text-align: center; color: var(--ac-color-muted); }
.ac-overflow-x { overflow-x: auto; overscroll-behavior-inline: contain; -webkit-overflow-scrolling: touch; }
.ac-min-w-0 { min-width: 0; }
.ac-touch-target { min-width: 44px; min-height: 44px; }

/* Form normalization across admin, mentor and public surfaces. */
body.ac-app :where(.form-control, .form-select, input:not([type='checkbox']):not([type='radio']):not([type='hidden']), select, textarea) {
  min-height: 44px;
  border-color: var(--ac-color-border);
  border-radius: var(--ac-radius-sm);
}
body.ac-app textarea { min-height: 112px; }
body.ac-app :where(.form-control, .form-select, input, select, textarea):focus {
  border-color: var(--ac-color-primary);
  box-shadow: var(--ac-focus-ring);
}
body.ac-app :where(.btn, .admin-btn-primary, .admin-btn-soft, .mentor-btn) { min-height: 42px; }

/* Utility classes used while removing repetitive inline declarations. */
.ac-mb-0 { margin-bottom: 0 !important; }
.ac-mt-8 { margin-top: 8px !important; }
.ac-mt-14 { margin-top: 14px !important; }
.ac-mb-12 { margin-bottom: 12px !important; }
.ac-pb-20 { padding-bottom: 20px !important; }
.ac-pb-0 { padding-bottom: 0 !important; }
.ac-text-2xs { font-size: .55rem !important; }
.ac-text-xs-tight { font-size: .6rem !important; }
.ac-text-xs { font-size: .7rem !important; }
.ac-text-sm { font-size: .8rem !important; }
.ac-text-blue { color: var(--blue) !important; }
.ac-text-violet { color: var(--violet) !important; }
.ac-text-emerald { color: var(--emerald) !important; }
.ac-text-amber { color: var(--amber) !important; }
.ac-text-rose { color: var(--rose) !important; }
.ac-text-border { color: var(--border) !important; }
.ac-text-white-soft { color: rgba(255,255,255,.85) !important; }
.ac-tone-blue { background: var(--blue-xl) !important; color: var(--blue) !important; }
.ac-tone-violet { background: var(--violet-l) !important; color: var(--violet) !important; }
.ac-tone-emerald { background: var(--emerald-l) !important; color: var(--emerald) !important; }
.ac-tone-amber { background: var(--amber-l) !important; color: var(--amber) !important; }
.ac-tone-teal { background: var(--teal-l) !important; color: var(--teal) !important; }
.ac-icon-gap { margin-right: 6px !important; }
.ac-flex-wrap-10 { display: flex !important; gap: 10px !important; flex-wrap: wrap !important; }
.ac-sticky-24 { position: sticky !important; top: 24px !important; }
.ac-border-0 { border: 0 !important; }
.ac-m-0 { margin: 0 !important; }

/* Responsive table primitive. JS adds data-label from table headers. */
.ac-table-scroll { width: 100%; overflow-x: auto; overscroll-behavior-inline: contain; -webkit-overflow-scrolling: touch; }
table.ac-responsive-table { width: 100%; }
table.ac-responsive-table th, table.ac-responsive-table td { vertical-align: middle; }

/* Prevent common layout overflow. */
body.ac-app :where(.row, .container, .container-fluid, main, section, article, aside, header, footer, nav) { min-width: 0; }
body.ac-app pre, body.ac-app code { max-width: 100%; overflow-wrap: anywhere; }
body.ac-app .dropdown-menu { max-width: min(94vw, 420px); }

@media (max-width: 991.98px) {
  .ac-desktop-only { display: none !important; }
  .ac-sticky-24 { position: static !important; }
  body.ac-app :where(.admin-page-header, .dash-header) { padding-inline: clamp(16px, 4vw, 26px); }
  body.ac-app :where(.admin-page-body, .dash-body) { padding-inline: clamp(14px, 3.5vw, 24px); }
}

@media (max-width: 767.98px) {
  .ac-mobile-full { width: 100% !important; }
  .ac-cluster { align-items: stretch; }
  body.ac-app :where(.btn, .admin-btn-primary, .admin-btn-soft, .mentor-btn) { max-width: 100%; white-space: normal; }

  table.ac-responsive-table.ac-table-stack,
  table.ac-responsive-table.ac-table-stack tbody,
  table.ac-responsive-table.ac-table-stack tr,
  table.ac-responsive-table.ac-table-stack td { display: block; width: 100%; }
  table.ac-responsive-table.ac-table-stack thead {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
  }
  table.ac-responsive-table.ac-table-stack tbody { display: grid; gap: 12px; }
  table.ac-responsive-table.ac-table-stack tr {
    background: var(--ac-color-surface); border: 1px solid var(--ac-color-border);
    border-radius: var(--ac-radius-md); padding: 8px 14px; box-shadow: var(--ac-shadow-xs);
  }
  table.ac-responsive-table.ac-table-stack td {
    display: grid; grid-template-columns: minmax(105px, 40%) 1fr; gap: 12px;
    align-items: start; padding: 10px 0 !important; border: 0 !important;
    border-bottom: 1px dashed var(--ac-color-border) !important; text-align: right;
    overflow-wrap: anywhere;
  }
  table.ac-responsive-table.ac-table-stack td:last-child { border-bottom: 0 !important; }
  table.ac-responsive-table.ac-table-stack td::before {
    content: attr(data-label); text-align: left; font-size: .68rem; font-weight: 800;
    letter-spacing: .06em; text-transform: uppercase; color: var(--ac-color-muted);
  }
  table.ac-responsive-table.ac-table-stack td[colspan] { display: block; text-align: center; }
  table.ac-responsive-table.ac-table-stack td[colspan]::before { display: none; }
  table.ac-responsive-table.ac-table-stack td .btn { margin-block: 2px; }
}

@media (max-width: 479.98px) {
  body.ac-app { font-size: 15px; }
  .ac-page-shell { padding-inline: 14px; }
  body.ac-app :where(.admin-page-title, .dh-title) { overflow-wrap: anywhere; }
  body.ac-app :where(.admin-action-row, .notification-actions, .mentor-actions) > * { flex: 1 1 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media (forced-colors: active) {
  :where(.ac-card, .admin-panel, .mentor-panel, .notification-panel) { border: 1px solid CanvasText; }
}