/* MES Akademi · Canlı Keşif Tasarım Sistemi · Ortak Temel (2026-10-10)
 * Kapsam: html.ck ve .ck-theme altında çalışır. Başka sayfalara ve çatılara sızmaz.
 * Kontrast oranları WCAG AA doğrulanmıştır:
 *   Ana metin (--ck-ink): #102A56 / #F8FAFC ≈ 14:1, #102A56 / #FFFFFF ≈ 15:1 (Hedef ≥ 7:1)
 *   İkincil metin (--ck-ink-2): #52627A / #FFFFFF ≈ 6.1:1, #52627A / #F8FAFC ≈ 5.8:1 (Hedef ≥ 4.5:1)
 *   Eylem mavisi (--ck-action): #0066FF / #FFFFFF ≈ 4.54:1 (Hedef ≥ 4.5:1)
 *   Mavi metin (--ck-action-text): #0052CC / #EBF3FF ≈ 6.2:1, #0052CC / #FFFFFF ≈ 6.8:1 (Hedef ≥ 4.5:1)
 *   Durum metinleri: warn/bad/ok ≥ 7:1
 */

html.ck,
.ck-theme {
  --ck-bg: #F8FAFC;
  --ck-surface: #FFFFFF;
  --ck-soft: #EBF3FF;
  --ck-soft-hover: #DCEBFF;
  --ck-action: #0066FF;
  --ck-action-hover: #0052CC;
  --ck-action-active: #003D99;
  --ck-action-text: #0052CC;
  --ck-ink: #102A56;
  --ck-ink-2: #52627A;
  --ck-ink-3: #42546E; /* Yeniden hesaplandı: #42546E / #FFFFFF = 7.6:1, #F8FAFC üzerinde 7.3:1 (Placeholder için WCAG AA tam uyumlu) */
  --ck-line: #E2E8F0;
  --ck-line-strong: #CBD5E1;
  --ck-radius-sm: 8px;
  --ck-radius-md: 12px;
  --ck-radius-lg: 16px;
  --ck-radius-xl: 20px;
  --ck-radius-full: 9999px;
  --ck-shadow-sm: 0 1px 2px rgba(16, 42, 86, 0.05);
  --ck-shadow-md: 0 4px 12px rgba(16, 42, 86, 0.08);
  --ck-shadow-lg: 0 12px 28px rgba(16, 42, 86, 0.12);

  /* Durum tokenları */
  --ck-warn-bg: #FFF4E5;
  --ck-warn-ink: #7A3E00;
  --ck-warn-border: #F5D9B0;
  --ck-bad-bg: #FDECEC;
  --ck-bad-ink: #8A1C1C;
  --ck-bad-border: #F3C2C2;
  --ck-ok-bg: #E8F7EE;
  --ck-ok-ink: #0B5D2E;
  --ck-ok-border: #BFE3CD;
  --ck-info-bg: #EBF3FF;
  --ck-info-ink: #0052CC;
  --ck-info-border: #CFE0FF;

  /* Ders kimlik renkleri - sade ve açık */
  --ck-subject-fen: #0B5D2E;
  --ck-subject-fen-bg: #E8F7EE;
  --ck-subject-mat: #0052CC;
  --ck-subject-mat-bg: #EBF3FF;
  --ck-subject-turkce: #8A1C1C;
  --ck-subject-turkce-bg: #FDECEC;
  --ck-subject-sosyal: #7A3E00;
  --ck-subject-sosyal-bg: #FFF4E5;
  --ck-subject-ingilizce: #432874;
  --ck-subject-ingilizce-bg: #F3E8FF;
  --ck-subject-bilisim: #0E7490;
  --ck-subject-bilisim-bg: #ECFEFF;

  /* Tipografi & Boyut */
  --ck-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --ck-touch-target: 44px;
}

/* Genel sıfırlama ve zemin */
html.ck body,
.ck-theme body {
  margin: 0;
  padding: 0;
  background-color: var(--ck-bg);
  color: var(--ck-ink);
  font-family: var(--ck-font-family);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* HiDPI Görsel ve Tuval — Türe Özgü Kapsamlı Netlik */
html.ck img,
.ck-theme img {
  image-rendering: auto;
}
html.ck img.pixel-art,
html.ck canvas.pixel-art,
.ck-theme .pixelated {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* Erişilebilir klavye odağı */
html.ck :focus-visible,
.ck-theme :focus-visible {
  outline: 3px solid var(--ck-action) !important;
  outline-offset: 2px !important;
}

/* Azaltılmış hareket tercihi */
@media (prefers-reduced-motion: reduce) {
  html.ck *,
  html.ck *::before,
  html.ck *::after,
  .ck-theme *,
  .ck-theme *::before,
  .ck-theme *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* Tipografi yardımcıları */
html.ck .ck-title-xl, .ck-theme .ck-title-xl { font-size: 26px; font-weight: 800; line-height: 1.25; color: var(--ck-ink); margin: 0; }
html.ck .ck-title-lg, .ck-theme .ck-title-lg { font-size: 20px; font-weight: 800; line-height: 1.3; color: var(--ck-ink); margin: 0; }
html.ck .ck-title-md, .ck-theme .ck-title-md { font-size: 16px; font-weight: 700; line-height: 1.35; color: var(--ck-ink); margin: 0; }
html.ck .ck-title-sm, .ck-theme .ck-title-sm { font-size: 14px; font-weight: 700; line-height: 1.4; color: var(--ck-ink); margin: 0; }
html.ck .ck-text-body, .ck-theme .ck-text-body { font-size: 14px; color: var(--ck-ink); line-height: 1.5; margin: 0; }
html.ck .ck-text-muted, .ck-theme .ck-text-muted { font-size: 13px; color: var(--ck-ink-2); line-height: 1.45; margin: 0; }
html.ck .ck-text-caption, .ck-theme .ck-text-caption { font-size: 12px; color: var(--ck-ink-2); line-height: 1.4; margin: 0; }

/* Düğmeler */
html.ck .ck-btn,
.ck-theme .ck-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  appearance: none;
  border: 1px solid var(--ck-line);
  background: var(--ck-surface);
  color: var(--ck-ink);
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  padding: 10px 16px;
  min-height: var(--ck-touch-target);
  border-radius: var(--ck-radius-md);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  box-sizing: border-box;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

html.ck .ck-btn:hover,
.ck-theme .ck-btn:hover {
  background: var(--ck-soft);
  border-color: #CFE0FF;
  color: var(--ck-action-text);
}

html.ck .ck-btn-primary,
.ck-theme .ck-btn-primary {
  background: var(--ck-action);
  border-color: var(--ck-action);
  color: #FFFFFF;
}

html.ck .ck-btn-primary:hover,
.ck-theme .ck-btn-primary:hover {
  background: var(--ck-action-hover);
  border-color: var(--ck-action-hover);
  color: #FFFFFF;
}

html.ck .ck-btn-primary:active,
.ck-theme .ck-btn-primary:active {
  background: var(--ck-action-active);
  border-color: var(--ck-action-active);
  color: #FFFFFF;
}

html.ck .ck-btn-ghost,
.ck-theme .ck-btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--ck-ink-2);
}

html.ck .ck-btn-ghost:hover,
.ck-theme .ck-btn-ghost:hover {
  background: var(--ck-soft);
  color: var(--ck-action-text);
}

html.ck .ck-btn-sm,
.ck-theme .ck-btn-sm {
  min-height: 34px;
  padding: 6px 12px;
  font-size: 13px;
  border-radius: var(--ck-radius-sm);
}

html.ck .ck-btn-lg,
.ck-theme .ck-btn-lg {
  min-height: 48px;
  padding: 12px 20px;
  font-size: 16px;
  border-radius: var(--ck-radius-lg);
}

html.ck .ck-btn[disabled],
.ck-theme .ck-btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Form Girişleri ve Yüksek Kontrastlı Yer Tutucular */
html.ck input, html.ck select, html.ck textarea,
.ck-theme input, .ck-theme select, .ck-theme textarea {
  color: var(--ck-ink);
  background-color: var(--ck-surface);
  border: 1px solid var(--ck-line-strong);
  font-family: inherit;
  font-size: 14px;
}

html.ck input::placeholder, html.ck textarea::placeholder,
.ck-theme input::placeholder, .ck-theme textarea::placeholder {
  color: var(--ck-ink-3);
  opacity: 1; /* Firefox varsayılan 0.54 opaklığını ezer, tam kontrast sağlar */
}

/* Çipler ve Rozetler */
html.ck .ck-chip,
.ck-theme .ck-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--ck-radius-full);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  border: 1px solid var(--ck-line);
  background: var(--ck-surface);
  color: var(--ck-ink);
  white-space: nowrap;
}

html.ck .ck-chip-active,
.ck-theme .ck-chip-active {
  background: var(--ck-soft);
  color: var(--ck-action-text);
  border-color: #CFE0FF;
  font-weight: 700;
}

html.ck .ck-chip-dismissible,
.ck-theme .ck-chip-dismissible {
  cursor: pointer;
}

html.ck .ck-chip-dismissible::after,
.ck-theme .ck-chip-dismissible::after {
  content: "×";
  font-size: 14px;
  line-height: 1;
  font-weight: 800;
  opacity: 0.7;
}

html.ck .ck-chip-dismissible:hover::after,
.ck-theme .ck-chip-dismissible:hover::after {
  opacity: 1;
}

/* Durum Rozetleri */
html.ck .ck-badge-ok, .ck-theme .ck-badge-ok { background: var(--ck-ok-bg); color: var(--ck-ok-ink); border-color: var(--ck-ok-border); }
html.ck .ck-badge-warn, .ck-theme .ck-badge-warn { background: var(--ck-warn-bg); color: var(--ck-warn-ink); border-color: var(--ck-warn-border); }
html.ck .ck-badge-bad, .ck-theme .ck-badge-bad { background: var(--ck-bad-bg); color: var(--ck-bad-ink); border-color: var(--ck-bad-border); }
html.ck .ck-badge-info, .ck-theme .ck-badge-info { background: var(--ck-info-bg); color: var(--ck-info-ink); border-color: var(--ck-info-border); }

/* Özellik Etiketleri (Doğrulanmış Nitelikler) */
html.ck .ck-feature-tag,
.ck-theme .ck-feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: #F1F5F9;
  color: var(--ck-ink-2);
  border: 1px solid var(--ck-line);
}

html.ck .ck-feature-tag.is-3d, .ck-theme .ck-feature-tag.is-3d { background: #E0E7FF; color: #3730A3; border-color: #C7D2FE; }
html.ck .ck-feature-tag.is-board, .ck-theme .ck-feature-tag.is-board { background: #ECFDF5; color: #065F46; border-color: #A7F3D0; }
html.ck .ck-feature-tag.is-audio, .ck-theme .ck-feature-tag.is-audio { background: #FEF3C7; color: #92400E; border-color: #FDE68A; }

/* Demo Verisi Belirteci (Dürüstlük İlkesi) */
html.ck .ck-demo-indicator,
.ck-theme .ck-demo-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: #F1F5F9;
  color: #64748B;
  border: 1px dashed #CBD5E1;
}

/* Yüzey / Kart Temeli */
html.ck .ck-surface,
.ck-theme .ck-surface {
  background: var(--ck-surface);
  border: 1px solid var(--ck-line);
  border-radius: var(--ck-radius-lg);
  box-shadow: var(--ck-shadow-sm);
  box-sizing: border-box;
}

/* Durum Blokları: Yükleniyor, Boş, Hata, AI Kapalı */
html.ck .ck-state-card,
.ck-theme .ck-state-card {
  padding: 32px 24px;
  text-align: center;
  border-radius: var(--ck-radius-lg);
  border: 1px solid var(--ck-line);
  background: var(--ck-surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

html.ck .ck-state-icon,
.ck-theme .ck-state-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--ck-soft);
  color: var(--ck-action-text);
  font-size: 22px;
}

html.ck .ck-state-error .ck-state-icon,
.ck-theme .ck-state-error .ck-state-icon {
  background: var(--ck-bad-bg);
  color: var(--ck-bad-ink);
}

html.ck .ck-state-ai-off .ck-state-icon,
.ck-theme .ck-state-ai-off .ck-state-icon {
  background: var(--ck-warn-bg);
  color: var(--ck-warn-ink);
}

/* İskelet (Skeleton) Yükleme */
html.ck .ck-skeleton,
.ck-theme .ck-skeleton {
  background: linear-gradient(90deg, #EDF2F7 25%, #F7FAFC 50%, #EDF2F7 75%);
  background-size: 200% 100%;
  border-radius: 6px;
  animation: ck-skeleton-pulse 1.6s ease-in-out infinite;
}

@keyframes ck-skeleton-pulse {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}