/* CTP Dijital Pazarlama Eğitim Platformu */

:root {
  --navy: #2D3A4A;
  --blue: #29ABE2;
  --blue-dark: #1E8EBF;
  --blue-light: #E8F6FC;
  --gray-bg: #F5F7FA;
  --gray-border: #E2E8F0;
  --gray-text: #64748B;
  --white: #FFFFFF;
  --green: #22C55E;
  --green-light: #DCFCE7;
  --red: #EF4444;
  --red-light: #FEE2E2;
  --orange: #F59E0B;
  --orange-light: #FEF3C7;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
  --transition: 0.2s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--navy);
  background: var(--gray-bg);
  line-height: 1.7;
  font-size: 16px;
}

/* ─── HEADER ─── */
.header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo { height: 36px; }

.header-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-nav a {
  color: var(--gray-text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transition);
}

.header-nav a:hover { color: var(--blue); }

.header-progress {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--gray-text);
}

.header-progress-bar {
  width: 120px;
  height: 6px;
  background: var(--gray-border);
  border-radius: 3px;
  overflow: hidden;
}

.header-progress-fill {
  height: 100%;
  background: var(--blue);
  border-radius: 3px;
  transition: width 0.5s ease;
}

/* ─── LAYOUT ─── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.page-content {
  max-width: 920px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

/* ─── HERO (Ana Sayfa) ─── */
.hero {
  text-align: center;
  padding: 80px 24px 60px;
}

.hero h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--navy);
}

.hero p {
  font-size: 1.1rem;
  color: var(--gray-text);
  max-width: 560px;
  margin: 0 auto 40px;
}

/* ─── EKİP SEÇİMİ ─── */
.team-select {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 800px;
  margin: 0 auto 60px;
}

.team-card {
  background: var(--white);
  border: 2px solid var(--gray-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  color: var(--navy);
}

.team-card:hover {
  border-color: var(--blue);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.team-card.active {
  border-color: var(--blue);
  background: var(--blue-light);
}

.team-card-icon {
  font-size: 2.4rem;
  margin-bottom: 16px;
}

.team-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.team-card p {
  font-size: 0.85rem;
  color: var(--gray-text);
  line-height: 1.5;
}

/* ─── SEVİYE HARİTASI ─── */
.level-section {
  margin-bottom: 48px;
}

.level-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.level-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
}

.level-badge.l1 { background: var(--blue); }
.level-badge.l2 { background: var(--orange); }
.level-badge.l3 { background: var(--red); }

.level-header h2 {
  font-size: 1.3rem;
  font-weight: 600;
}

.level-header .level-subtitle {
  font-size: 0.85rem;
  color: var(--gray-text);
  font-weight: 400;
}

/* ─── MODÜL KARTLARI ─── */
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.module-card {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  color: var(--navy);
  transition: all var(--transition);
}

.module-card:hover {
  border-color: var(--blue);
  box-shadow: var(--shadow);
}

.module-card.locked {
  opacity: 1;
}

.module-card.completed {
  border-left: 4px solid var(--green);
}

.module-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--blue-light);
  color: var(--blue);
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.module-card.completed .module-number {
  background: var(--green-light);
  color: var(--green);
}

.module-card.locked .module-number {
  background: var(--blue-light);
  color: var(--blue);
}

.module-info { flex: 1; }

.module-info h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.module-info p {
  font-size: 0.8rem;
  color: var(--gray-text);
}

.module-status {
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* ─── DERS İÇERİK SAYFASI ─── */
.lesson-header {
  margin-bottom: 40px;
}

.lesson-breadcrumb {
  font-size: 0.85rem;
  color: var(--gray-text);
  margin-bottom: 12px;
}

.lesson-breadcrumb a {
  color: var(--blue);
  text-decoration: none;
}

.lesson-breadcrumb a:hover { text-decoration: underline; }

.lesson-header h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.lesson-meta {
  display: flex;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--gray-text);
}

/* ─── İÇERİK STİLLERİ ─── */
.lesson-content h2 {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 40px 0 16px;
  padding-top: 20px;
  border-top: 1px solid var(--gray-border);
}

.lesson-content h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.lesson-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 28px 0 12px;
}

.lesson-content p {
  margin-bottom: 16px;
}

.lesson-content ul, .lesson-content ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

.lesson-content li {
  margin-bottom: 6px;
}

.lesson-content strong {
  font-weight: 600;
}

.lesson-content img {
  max-width: 100%;
  border-radius: var(--radius);
  margin: 20px 0;
  box-shadow: var(--shadow);
}

/* ─── BİLGİ KUTULARI ─── */
.info-box {
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 24px 0;
  font-size: 0.95rem;
}

.info-box.analogy {
  background: var(--blue-light);
  border-left: 4px solid var(--blue);
}

.info-box.warning {
  background: var(--orange-light);
  border-left: 4px solid var(--orange);
}

.info-box.tip {
  background: var(--green-light);
  border-left: 4px solid var(--green);
}

.info-box-title {
  font-weight: 700;
  margin-bottom: 6px;
  font-size: 0.9rem;
}

/* ─── QUIZ ─── */
.quiz-section {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 2px solid var(--gray-border);
}

.quiz-section h2 {
  font-size: 1.3rem;
  margin-bottom: 24px;
  border: none;
  padding: 0;
}

.quiz-question {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.quiz-question-text {
  font-weight: 600;
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quiz-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid var(--gray-border);
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 0.9rem;
}

.quiz-option:hover {
  border-color: var(--blue);
  background: var(--blue-light);
}

.quiz-option.selected {
  border-color: var(--blue);
  background: var(--blue-light);
}

.quiz-option.correct {
  border-color: var(--green);
  background: var(--green-light);
}

.quiz-option.wrong {
  border-color: var(--red);
  background: var(--red-light);
}

.quiz-option input[type="radio"] { display: none; }

.quiz-option-marker {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--gray-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--gray-text);
}

.quiz-option.selected .quiz-option-marker {
  border-color: var(--blue);
  background: var(--blue);
  color: var(--white);
}

.quiz-option.correct .quiz-option-marker {
  border-color: var(--green);
  background: var(--green);
  color: var(--white);
}

.quiz-option.wrong .quiz-option-marker {
  border-color: var(--red);
  background: var(--red);
  color: var(--white);
}

.quiz-feedback {
  margin-top: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  display: none;
}

.quiz-feedback.correct {
  background: var(--green-light);
  color: #166534;
  display: block;
}

.quiz-feedback.wrong {
  background: var(--red-light);
  color: #991B1B;
  display: block;
}

.quiz-feedback.good {
  background: var(--orange-light);
  color: #92400E;
  display: block;
}

/* ─── TRUE/FALSE ─── */
.quiz-tf-options {
  flex-direction: row;
  gap: 12px;
}

.quiz-tf-btn {
  flex: 1;
  justify-content: center;
  font-weight: 600;
  padding: 16px;
}

/* ─── ORDERING ─── */
.quiz-ordering {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quiz-ordering-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid var(--gray-border);
  border-radius: 8px;
  font-size: 0.9rem;
  background: var(--white);
  transition: all var(--transition);
}

.quiz-ordering-select {
  width: 50px;
  padding: 4px 6px;
  border: 1px solid var(--gray-border);
  border-radius: 6px;
  font-size: 0.9rem;
  text-align: center;
  background: var(--white);
  flex-shrink: 0;
}

.quiz-ordering-text {
  flex: 1;
}

.quiz-ordering-item.ordering-correct {
  border-color: var(--green);
  background: var(--green-light);
}

.quiz-ordering-item.ordering-wrong {
  border-color: var(--red);
  background: var(--red-light);
}

/* ─── BEST ANSWER ─── */
.quiz-option.good-answer {
  border-color: var(--orange);
  background: var(--orange-light);
}

.quiz-option.good-answer .quiz-option-marker {
  border-color: var(--orange);
  background: var(--orange);
  color: var(--white);
}

/* ─── QUIZ SONUÇ ─── */
.quiz-result {
  text-align: center;
  padding: 32px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-border);
  margin-top: 24px;
  display: none;
}

.quiz-result.show { display: block; }

.quiz-score {
  font-size: 3rem;
  font-weight: 700;
  color: var(--blue);
}

.quiz-score.pass { color: var(--green); }
.quiz-score.fail { color: var(--red); }

.quiz-result p {
  margin: 8px 0 20px;
  color: var(--gray-text);
}

/* ─── BUTONLAR ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--blue);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--blue-dark);
}

.btn-secondary {
  background: var(--white);
  color: var(--navy);
  border: 1px solid var(--gray-border);
}

.btn-secondary:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1rem;
}

/* ─── DERS NAVİGASYON ─── */
.lesson-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-border);
}

/* ─── TABLOLAR ─── */
.lesson-content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 20px 0;
  font-size: 0.9rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gray-border);
  box-shadow: var(--shadow);
}

.lesson-content thead th {
  background: var(--navy);
  color: var(--white);
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

.lesson-content tbody td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--gray-border);
  vertical-align: top;
  line-height: 1.5;
}

.lesson-content tbody tr:last-child td {
  border-bottom: none;
}

.lesson-content tbody tr:nth-child(even) {
  background: var(--gray-bg);
}

.lesson-content tbody tr:hover {
  background: var(--blue-light);
}

.lesson-content tbody td:first-child {
  font-weight: 600;
  white-space: nowrap;
}

/* Responsive tablo — mobilde yatay scroll */
@media (max-width: 768px) {
  .lesson-content table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .lesson-content tbody td:first-child {
    white-space: normal;
  }
}

/* ─── SVG DİYAGRAMLAR ─── */
.svg-diagram {
  width: 100%;
  margin: 24px 0;
  display: flex;
  justify-content: center;
}

.svg-diagram svg {
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 1px 3px rgba(0,0,0,0.08));
}

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .team-select {
    grid-template-columns: 1fr;
    max-width: 400px;
  }

  .module-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 { font-size: 1.6rem; }
  .hero p { font-size: 1rem; }

  .lesson-header h1 { font-size: 1.4rem; }

  .header-progress-bar { width: 80px; }

  .page-content { padding: 24px 16px 60px; }
}

@media (max-width: 480px) {
  .lesson-nav { flex-direction: column; gap: 12px; }
  .lesson-nav .btn { width: 100%; justify-content: center; }
}