/* ============================================================
   HARTS DIGITAL HUB — training.css
   AI Training Portal styles
   ============================================================ */

/* ── Bonus Banner ─────────────────────────────────────────── */
.tr-bonus-banner {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #fff;
  color: #000;
  font-family: 'DM Mono', monospace;
  font-size: 0.82rem;
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  margin-bottom: 2.5rem;
  letter-spacing: 0.02em;
}
.tr-bonus-icon { font-size: 1rem; }

/* ── Hero ─────────────────────────────────────────────────── */
.tr-hero {
  text-align: center;
  padding: 5rem 1.5rem 4rem;
  max-width: 780px;
  margin: 0 auto;
}
.tr-hero-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}
.tr-hero-sub {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 2.5rem;
}
.tr-hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.tr-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem 2rem;
  gap: 0.2rem;
}
.tr-stat-num {
  font-family: 'Syne', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
}
.tr-stat-label {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.tr-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* ── Buttons ──────────────────────────────────────────────── */
.tr-btn-primary {
  display: inline-block;
  background: #fff;
  color: #000;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  padding: 0.85rem 2rem;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.18s, transform 0.18s;
}
.tr-btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }

.tr-btn-outline {
  display: inline-block;
  background: transparent;
  color: #fff;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  padding: 0.85rem 2rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.18s, color 0.18s;
}
.tr-btn-outline:hover { border-color: #fff; color: #fff; }

/* ── Progress Bar ─────────────────────────────────────────── */
.tr-progress-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}
.tr-progress-header {
  display: flex;
  justify-content: space-between;
  width: 100%;
  max-width: 700px;
  font-size: 0.85rem;
  color: var(--muted);
}
.tr-welcome {
  font-family: 'Syne', sans-serif;
  color: #fff;
  font-size: 0.9rem;
}
.tr-progress-bar-wrap {
  width: 100%;
  max-width: 700px;
  height: 6px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.tr-progress-bar {
  height: 100%;
  background: #fff;
  border-radius: 999px;
  transition: width 0.5s ease;
}

/* ── Section Titles ───────────────────────────────────────── */
.tr-section-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}
.tr-section-sub {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 3rem;
}

/* ── Module Grid ──────────────────────────────────────────── */
.tr-modules {
  padding: 5rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}
.tr-module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}
.tr-module-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  position: relative;
  transition: border-color 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
}
.tr-module-card:hover {
  border-color: #444;
  transform: translateY(-2px);
}
.tr-module-card.completed {
  border-color: #fff;
}
.tr-module-num {
  font-family: 'Syne', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--border);
  line-height: 1;
  margin-bottom: 1rem;
  transition: color 0.2s;
}
.tr-module-card.completed .tr-module-num { color: #fff; }
.tr-module-body { flex: 1; }
.tr-module-title {
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}
.tr-module-desc {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}
.tr-module-topics {
  list-style: none;
  padding: 0;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.tr-module-topics li {
  font-size: 0.78rem;
  color: var(--muted);
  padding-left: 1rem;
  position: relative;
}
.tr-module-topics li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--border);
}
.tr-module-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.tr-module-time {
  font-size: 0.75rem;
  color: var(--muted);
}
.tr-module-btn {
  background: var(--border);
  color: #fff;
  border: none;
  border-radius: 999px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  padding: 0.5rem 1.2rem;
  cursor: pointer;
  transition: background 0.18s;
}
.tr-module-btn:hover { background: #333; }
.tr-module-card.completed .tr-module-btn {
  background: #fff;
  color: #000;
}
.tr-module-check {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  width: 26px;
  height: 26px;
  background: #fff;
  color: #000;
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
}
.tr-module-card.completed .tr-module-check { display: flex; }

/* ── Enroll Section ───────────────────────────────────────── */
.tr-enroll {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 5rem 1.5rem;
}
.tr-enroll-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.tr-enroll-perks {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.tr-enroll-perks li {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.5;
}
.tr-enroll-perks li strong,
.tr-enroll-perks li { color: #ccc; }

/* ── Form ─────────────────────────────────────────────────── */
.tr-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.tr-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.tr-field label {
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.tr-field input,
.tr-field select {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: #fff;
  font-family: 'DM Mono', monospace;
  font-size: 0.9rem;
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color 0.18s;
}
.tr-field input:focus,
.tr-field select:focus { border-color: #fff; }
.tr-field select option { background: #111; }
.tr-error {
  font-size: 0.75rem;
  color: #ff6b6b;
  min-height: 1em;
}
.tr-enroll-success {
  text-align: center;
  padding: 2rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.tr-success-icon {
  width: 52px;
  height: 52px;
  background: #fff;
  color: #000;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 auto 1rem;
}
.tr-enroll-success h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}
.tr-enroll-success p {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 1.5rem;
}

/* ── Lesson Modal ─────────────────────────────────────────── */
.tr-lesson-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.tr-lesson-backdrop.open {
  display: flex;
}
.tr-lesson-modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 720px;
  max-height: 88vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
}
.tr-lesson-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.tr-lesson-num {
  font-family: 'Syne', sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.tr-lesson-close {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.6rem;
  cursor: pointer;
  line-height: 1;
  padding: 0;
  transition: color 0.18s;
}
.tr-lesson-close:hover { color: #fff; }
.tr-lesson-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}
.tr-lesson-content {
  font-size: 0.9rem;
  line-height: 1.85;
  color: #ccc;
}
.tr-lesson-content h3 {
  font-family: 'Syne', sans-serif;
  color: #fff;
  font-size: 1rem;
  margin: 1.5rem 0 0.5rem;
}
.tr-lesson-content p { margin-bottom: 1rem; }
.tr-lesson-content ul {
  padding-left: 1.25rem;
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.tr-lesson-content li { color: #aaa; }
.tr-lesson-content .highlight {
  background: var(--card-bg);
  border-left: 3px solid #fff;
  padding: 0.75rem 1rem;
  border-radius: 0 0.5rem 0.5rem 0;
  margin: 1rem 0;
  font-size: 0.85rem;
}

/* Quiz */
.tr-lesson-quiz { margin-top: 2rem; }
.tr-quiz-title {
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  margin-bottom: 1.25rem;
  color: #fff;
}
.tr-quiz-q { margin-bottom: 1.5rem; }
.tr-quiz-q p {
  font-size: 0.88rem;
  color: #ccc;
  margin-bottom: 0.75rem;
  font-weight: 500;
}
.tr-quiz-options {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.tr-quiz-option {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.65rem 1rem;
  font-size: 0.82rem;
  color: #ccc;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.18s, background 0.18s;
  font-family: 'DM Mono', monospace;
}
.tr-quiz-option:hover { border-color: #555; }
.tr-quiz-option.correct { border-color: #4ade80; background: rgba(74,222,128,0.08); color: #4ade80; }
.tr-quiz-option.wrong { border-color: #f87171; background: rgba(248,113,113,0.08); color: #f87171; }
.tr-quiz-result {
  font-size: 0.85rem;
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--muted);
  display: none;
}

.tr-lesson-actions {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

/* ── FAQ ──────────────────────────────────────────────────── */
.tr-faq {
  padding: 5rem 1.5rem;
  max-width: 720px;
  margin: 0 auto;
}
.tr-faq-list { display: flex; flex-direction: column; gap: 0.75rem; }
.tr-faq-item {
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  overflow: hidden;
}
.tr-faq-item summary {
  padding: 1.1rem 1.5rem;
  font-family: 'Syne', sans-serif;
  font-size: 0.95rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.18s;
}
.tr-faq-item summary::-webkit-details-marker { display: none; }
.tr-faq-item summary::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--muted);
  transition: transform 0.2s;
}
.tr-faq-item[open] summary::after { transform: rotate(45deg); }
.tr-faq-item p {
  padding: 0 1.5rem 1.25rem;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.7;
}

/* ── CTA Footer ───────────────────────────────────────────── */
.tr-cta-footer {
  text-align: center;
  padding: 5rem 1.5rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.tr-cta-footer h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  margin-bottom: 0.75rem;
}
.tr-cta-footer p {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

/* ── Site Footer ──────────────────────────────────────────── */
.tr-site-footer {
  text-align: center;
  padding: 2rem 1.5rem;
  font-size: 0.78rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}
.tr-site-footer a { color: var(--muted); text-decoration: underline; }
.tr-site-footer a:hover { color: #fff; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 700px) {
  .tr-enroll-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .tr-stat { padding: 0.75rem 1rem; }
  .tr-lesson-modal { padding: 1.5rem; }
  .tr-lesson-actions { justify-content: stretch; }
  .tr-lesson-actions .tr-btn-outline,
  .tr-lesson-actions .tr-btn-primary { width: 100%; text-align: center; }
  .tr-hero-stats { border: none; gap: 0.5rem; }
  .tr-stat-divider { display: none; }
}