/* ============================================
   PAGES.CSS — inner page styles
   ============================================ */

/* ---- PAGE HERO ---- */
.page-hero { background: linear-gradient(135deg, rgba(124,58,237,0.1) 0%, rgba(6,182,212,0.05) 100%); padding: 8rem 2rem 4rem; border-bottom: 1px solid var(--border); }
.page-hero h1 { margin-bottom: 0.75rem; }
.page-hero p { color: var(--text-muted); font-size: 1.05rem; }

/* ---- LESSON LAYOUT ---- */
.lesson-layout { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; padding-top: 64px; }

.lesson-sidebar { background: var(--dark2); border-right: 1px solid var(--border); padding: 2rem 1.5rem; position: sticky; top: 64px; height: calc(100vh - 64px); overflow-y: auto; }
.sidebar-track { margin-bottom: 1.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border); }
.track-badge { display: inline-block; font-size: 0.75rem; font-weight: 700; padding: 0.3rem 0.8rem; border-radius: 50px; margin-bottom: 0.75rem; }
.php-badge { background: var(--php-light); color: var(--php); }
.track-progress-bar { height: 4px; background: rgba(255,255,255,0.1); border-radius: 2px; margin-bottom: 0.4rem; }
.track-progress-fill { height: 100%; background: linear-gradient(90deg, var(--php), var(--accent)); border-radius: 2px; transition: width 0.5s ease; }
.track-progress-label { font-size: 0.75rem; color: var(--text-dim); }

.lesson-list { list-style: none; display: flex; flex-direction: column; gap: 0.25rem; }
.lesson-list-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.6rem 0.75rem; border-radius: 8px; transition: background 0.2s; }
.lesson-list-item:hover { background: rgba(255,255,255,0.05); }
.lesson-list-item.active { background: rgba(124,58,237,0.15); border: 1px solid rgba(124,58,237,0.3); }
.lesson-list-item.completed { opacity: 0.7; }
.lesson-list-item a { font-size: 0.85rem; color: var(--text-muted); flex: 1; }
.lesson-list-item.active a { color: white; font-weight: 600; }
.lesson-check { color: var(--accent2); font-size: 0.8rem; flex-shrink: 0; }
.lesson-num { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-dim); flex-shrink: 0; width: 20px; }

.lesson-main { padding: 3rem 4rem; max-width: 800px; }
.lesson-breadcrumb { font-size: 0.82rem; color: var(--text-dim); margin-bottom: 1rem; }
.lesson-breadcrumb a { color: var(--accent); }
.lesson-title-row { display: flex; align-items: center; gap: 1rem; margin-bottom: 0.75rem; flex-wrap: wrap; }
.lesson-meta-row { display: flex; gap: 1.5rem; font-size: 0.82rem; color: var(--text-dim); margin-bottom: 2.5rem; flex-wrap: wrap; }
.lesson-status { color: var(--text-dim); }

.lesson-content h2 { font-size: 1.3rem; margin: 2rem 0 0.75rem; color: white; }
.lesson-content p { margin-bottom: 1rem; color: var(--text-muted); }

.code-example { background: #0d1117; border-radius: var(--radius); overflow: hidden; margin: 1rem 0 1.5rem; border: 1px solid rgba(255,255,255,0.08); }
.code-example-header { display: flex; justify-content: space-between; align-items: center; padding: 0.6rem 1rem; background: #161b22; border-bottom: 1px solid rgba(255,255,255,0.08); }
.code-lang { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-dim); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.copy-btn { font-size: 0.75rem; padding: 0.25rem 0.75rem; border-radius: 4px; border: 1px solid var(--border); background: transparent; color: var(--text-muted); cursor: pointer; transition: all 0.2s; font-family: var(--font-sans); }
.copy-btn:hover { background: rgba(255,255,255,0.08); color: white; }
.code-example pre { padding: 1.25rem 1.5rem; overflow-x: auto; }
.code-example code { background: transparent; padding: 0; font-size: 0.88rem; line-height: 1.8; color: var(--text); }
.code-example .syntax-tag,
.code-example .syntax-keyword,
.code-example .syntax-command { color: #ff7b72; }
.code-example .syntax-string { color: #a5d6ff; }
.code-example .syntax-comment { color: #8b949e; }
.code-example .syntax-variable,
.code-example .syntax-number,
.code-example .syntax-option { color: #79c0ff; }
.code-example .syntax-function,
.code-example .syntax-key { color: #d2a8ff; }
.code-example .syntax-type { color: #ffa657; }

.info-table { margin: 1rem 0 1.5rem; overflow-x: auto; }
.info-table table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.info-table th { background: rgba(255,255,255,0.05); padding: 0.7rem 1rem; text-align: left; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-dim); border-bottom: 1px solid var(--border); }
.info-table td { padding: 0.7rem 1rem; border-bottom: 1px solid rgba(255,255,255,0.04); color: var(--text-muted); }
.info-table tr:hover td { background: rgba(255,255,255,0.03); }

.lesson-tip { display: flex; gap: 1rem; background: rgba(6,182,212,0.08); border: 1px solid rgba(6,182,212,0.2); border-radius: var(--radius); padding: 1rem 1.25rem; margin: 1.5rem 0; font-size: 0.9rem; }
.lesson-tip strong { color: var(--accent); display: block; margin-bottom: 0.25rem; }
.lesson-tip p { margin: 0; }

.lesson-actions { display: flex; gap: 1rem; justify-content: space-between; align-items: center; margin: 3rem 0 2rem; padding-top: 2rem; border-top: 1px solid var(--border); flex-wrap: wrap; }

.quiz-cta { display: flex; align-items: center; gap: 1.5rem; background: linear-gradient(135deg, rgba(124,58,237,0.1), rgba(6,182,212,0.08)); border: 1px solid rgba(124,58,237,0.2); border-radius: var(--radius-lg); padding: 1.5rem 2rem; flex-wrap: wrap; }
.quiz-cta-icon { font-size: 2rem; }
.quiz-cta h3 { font-size: 1.1rem; margin-bottom: 0.25rem; }
.quiz-cta p { font-size: 0.88rem; margin: 0; }
.quiz-cta .btn { margin-left: auto; white-space: nowrap; }

/* ============================================
   QUIZ PAGE
   ============================================ */
.quiz-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; }
.quiz-select-card { background: var(--card-bg); border-radius: var(--radius-lg); border: 1px solid var(--border); padding: 2rem; text-align: center; cursor: pointer; transition: all 0.3s; }
.quiz-select-card:hover { transform: translateY(-4px); border-color: rgba(124,58,237,0.4); box-shadow: var(--glow-php); }
.quiz-select-icon { font-size: 2.5rem; margin-bottom: 1rem; display: block; }
.quiz-select-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.quiz-select-card p { font-size: 0.85rem; margin-bottom: 1rem; }
.quiz-select-meta { display: flex; gap: 1rem; justify-content: center; margin-bottom: 1.25rem; }
.quiz-select-meta span { font-size: 0.75rem; color: var(--text-dim); background: rgba(255,255,255,0.06); padding: 0.2rem 0.6rem; border-radius: 50px; }

.quiz-container { max-width: 700px; margin: 0 auto; padding: 3rem 2rem; }
.quiz-inner { background: var(--card-bg); border-radius: var(--radius-lg); border: 1px solid var(--border); overflow: hidden; }
.quiz-top { padding: 1.5rem 2rem; border-bottom: 1px solid var(--border); }
.quiz-title { font-size: 1rem; font-weight: 700; color: white; margin-bottom: 0.75rem; }
.quiz-progress-wrap { display: flex; align-items: center; gap: 1rem; }
.quiz-progress-bar { flex: 1; height: 6px; background: rgba(255,255,255,0.1); border-radius: 3px; }
.quiz-progress-fill { height: 100%; background: linear-gradient(90deg, var(--php), var(--accent)); border-radius: 3px; transition: width 0.5s ease; }
.quiz-progress-label { font-size: 0.78rem; color: var(--text-dim); white-space: nowrap; }

.quiz-question-card { padding: 2rem; }
.quiz-q-number { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-dim); margin-bottom: 0.75rem; }
.quiz-q-text { font-size: 1.2rem; margin-bottom: 1.5rem; line-height: 1.5; }
.quiz-options { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 1rem; }
.quiz-option { padding: 0.9rem 1.25rem; background: rgba(255,255,255,0.04); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-family: var(--font-sans); font-size: 0.93rem; text-align: left; cursor: pointer; transition: all 0.2s; }
.quiz-option:hover:not(:disabled) { background: rgba(124,58,237,0.12); border-color: rgba(124,58,237,0.4); }
.quiz-option.correct { background: rgba(34,197,94,0.15); border-color: rgba(34,197,94,0.5); color: #86efac; }
.quiz-option.wrong { background: rgba(239,68,68,0.15); border-color: rgba(239,68,68,0.5); color: #fca5a5; }

.quiz-feedback { padding: 1rem 1.25rem; border-radius: var(--radius); font-size: 0.9rem; margin-bottom: 1rem; line-height: 1.6; }
.correct-feedback { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); color: #86efac; }
.wrong-feedback { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }

.quiz-result { position: fixed; inset: 0; background: rgba(0,0,0,0.85); display: flex; align-items: center; justify-content: center; z-index: 200; padding: 2rem; }
.result-card { background: var(--card-bg); border-radius: var(--radius-lg); border: 1px solid var(--border); padding: 3rem 2.5rem; text-align: center; max-width: 420px; width: 100%; }
.result-emoji { font-size: 3rem; display: block; margin-bottom: 1rem; }
.result-score { font-family: var(--font-mono); font-size: 3rem; font-weight: 700; background: linear-gradient(135deg, var(--php), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin: 0.75rem 0; }
.result-actions { display: flex; gap: 1rem; justify-content: center; margin-top: 1.5rem; flex-wrap: wrap; }

/* ============================================
   PROGRESS PAGE
   ============================================ */
.progress-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; margin-bottom: 3rem; }
.progress-stat-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.5rem; text-align: center; }
.progress-stat-icon { font-size: 1.5rem; display: block; margin-bottom: 0.75rem; }
.progress-stat-num { font-family: var(--font-mono); font-size: 2rem; font-weight: 700; color: white; margin-bottom: 0.25rem; }
.progress-stat-label { font-size: 0.78rem; color: var(--text-dim); }

.progress-section-title { font-size: 1.2rem; margin-bottom: 1.5rem; color: white; }
.track-progress-list { display: flex; flex-direction: column; gap: 1.25rem; }
.track-progress-item { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.5rem; }
.track-progress-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.track-progress-info { display: flex; align-items: center; gap: 0.75rem; }
.track-progress-icon { font-size: 1.5rem; }
.track-progress-info strong { display: block; font-size: 0.95rem; color: white; }
.track-progress-count { font-size: 0.8rem; color: var(--text-dim); }
.track-progress-pct { font-family: var(--font-mono); font-size: 1.1rem; font-weight: 700; color: white; }
.track-progress-bar-bg { height: 8px; background: rgba(255,255,255,0.08); border-radius: 4px; }
.track-progress-bar-fill { height: 100%; border-radius: 4px; transition: width 1s ease; }
.php-fill { background: linear-gradient(90deg, var(--php), #a78bfa); }
.oop-fill { background: linear-gradient(90deg, var(--accent), #67e8f9); }
.laravel-fill { background: linear-gradient(90deg, var(--laravel), #fb923c); }
.advanced-fill { background: linear-gradient(90deg, var(--yellow), #fde68a); }

.quiz-history { display: flex; flex-direction: column; gap: 0.75rem; }
.quiz-history-item { display: flex; justify-content: space-between; align-items: center; background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; }
.quiz-history-info strong { display: block; font-size: 0.9rem; color: white; }
.quiz-history-info span { font-size: 0.78rem; color: var(--text-dim); }
.quiz-history-score { font-family: var(--font-mono); font-weight: 700; }
.empty-state { text-align: center; padding: 3rem; color: var(--text-dim); }
.empty-state span { font-size: 2rem; display: block; margin-bottom: 0.75rem; }
.empty-state a { color: var(--accent); }

/* ============================================
   SEARCH PAGE
   ============================================ */
.search-box-wrap { max-width: 640px; margin: 0 auto 1.5rem; }
.search-box { display: flex; align-items: center; gap: 0.75rem; background: var(--card-bg); border: 1px solid var(--border); border-radius: 50px; padding: 0.75rem 1.5rem; transition: border-color 0.3s; }
.search-box:focus-within { border-color: rgba(124,58,237,0.5); box-shadow: var(--glow-php); }
.search-icon { font-size: 1.1rem; flex-shrink: 0; }
.search-box input { flex: 1; background: transparent; border: none; outline: none; font-family: var(--font-sans); font-size: 1rem; color: white; }
.search-box input::placeholder { color: var(--text-dim); }
.search-clear { background: none; border: none; color: var(--text-dim); cursor: pointer; font-size: 0.9rem; padding: 2px; }
.search-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; max-width: 640px; margin: 0 auto 2.5rem; justify-content: center; }
.search-tag { font-size: 0.78rem; background: rgba(255,255,255,0.06); border: 1px solid var(--border); color: var(--text-muted); padding: 0.3rem 0.8rem; border-radius: 50px; cursor: pointer; transition: all 0.2s; font-family: var(--font-mono); }
.search-tag:hover { background: rgba(124,58,237,0.15); border-color: rgba(124,58,237,0.4); color: white; }

.search-count { font-size: 0.85rem; color: var(--text-dim); margin-bottom: 1rem; }
.search-results { display: flex; flex-direction: column; gap: 0.75rem; }
.search-result-item { display: flex; justify-content: space-between; align-items: center; background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem 1.5rem; transition: all 0.3s; gap: 1rem; }
.search-result-item:hover { border-color: rgba(124,58,237,0.4); transform: translateX(4px); }
.search-result-info { flex: 1; }
.search-result-info h4 { font-size: 0.95rem; margin: 0.4rem 0 0.3rem; color: white; }
.search-result-info p { font-size: 0.83rem; margin: 0; }
.search-result-meta { display: flex; align-items: center; gap: 1rem; flex-shrink: 0; }
.search-result-meta span { font-size: 0.78rem; color: var(--text-dim); }
.search-empty { text-align: center; padding: 4rem 2rem; color: var(--text-dim); }
.search-empty span { font-size: 2.5rem; display: block; margin-bottom: 1rem; }

.search-default h3 { font-size: 1rem; color: white; margin-bottom: 1.25rem; }
.search-popular-grid { display: flex; flex-direction: column; gap: 0.75rem; }

@media (max-width: 900px) {
  .lesson-layout { grid-template-columns: 1fr; }
  .lesson-sidebar { display: none; }
  .lesson-main { padding: 2rem; }
  .progress-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .progress-stats { grid-template-columns: 1fr 1fr; }
  .quiz-container { padding: 1rem; }
}