/* ══════════════════════════════════════════════
   04-components.css
   Shared UI Components:
   Hero, Module Cards, Theory Cards,
   Game Container, Buttons, Feedback Box
   ══════════════════════════════════════════════ */

/* ─────────────────────────────────────────────
   HERO SECTION
───────────────────────────────────────────── */
.hero {
  text-align: center;
  padding: 48px 24px;
  max-width: 720px;
  margin: 0 auto 40px;
}

.hero-chip {
  display: inline-block;
  padding: 4px 14px;
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: 99px;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.hero-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero-accent {
  color: var(--accent);
  font-family: var(--font-mono);
  display: block;
}

.hero-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 30px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 24px;
  text-align: center;
  transition: var(--transition);
}
.stat-card:hover {
  border-color: var(--border-accent);
  background: var(--accent-glow);
}
.stat-num {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-mono);
  line-height: 1;
}
.stat-label {
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.hero-btn {
  display: inline-block;
  padding: 13px 36px;
  background: var(--accent);
  color: #000;
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition),
              box-shadow var(--transition);
  letter-spacing: 0.01em;
}
.hero-btn:hover {
  background: #00f0b8;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,212,161,0.35);
}
.hero-btn:active { transform: translateY(0); }

/* ─────────────────────────────────────────────
   MODULE CARDS (Home grid)
───────────────────────────────────────────── */
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.module-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition),
              box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.module-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-glow);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}
.module-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.module-card:hover::before { opacity: 1; }

.module-icon { font-size: 2rem; margin-bottom: 12px; }
.module-tag {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}
.module-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.module-card p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.module-footer {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 0.72rem;
  color: var(--accent);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}
.module-footer::before { content: '→'; }

/* ─────────────────────────────────────────────
   THEORY CARDS
───────────────────────────────────────────── */
.theory-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.theory-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
  transition: border-color var(--transition), transform var(--transition);
}
.theory-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
}
.theory-icon { font-size: 1.5rem; margin-bottom: 10px; }
.theory-card h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 7px; }
.theory-card p {
  font-size: 0.79rem;
  color: var(--text-secondary);
  line-height: 1.65;
}
.theory-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 12px; }
.tag {
  padding: 2px 8px;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 99px;
  font-size: 0.66rem;
  color: var(--text-secondary);
}

/* ─────────────────────────────────────────────
   GAME CONTAINER
───────────────────────────────────────────── */
.game-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
}

.game-header { margin-bottom: 20px; }
.game-header h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
.game-header p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.game-actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
  flex-wrap: wrap;
}

/* ─────────────────────────────────────────────
   BUTTONS
───────────────────────────────────────────── */
.btn-check {
  padding: 10px 22px;
  background: var(--accent);
  color: #000;
  font-family: var(--font-main);
  font-size: 0.84rem;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition),
              box-shadow var(--transition);
}
.btn-check:hover {
  background: #00f0b8;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,212,161,0.3);
}
.btn-check:active { transform: translateY(0); }

.btn-reset {
  padding: 10px 22px;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-main);
  font-size: 0.84rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}
.btn-reset:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

/* ─────────────────────────────────────────────
   FEEDBACK BOX
───────────────────────────────────────────── */
.feedback-box {
  margin-top: 16px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 0.84rem;
  line-height: 1.65;
  border: 1px solid var(--border);
  animation: fadeIn 0.3s ease;
}
.feedback-box.success {
  background: rgba(0,212,161,0.08);
  border-color: rgba(0,212,161,0.3);
  color: #7fffdf;
}
.feedback-box.error {
  background: rgba(255,77,109,0.08);
  border-color: rgba(255,77,109,0.3);
  color: #ffa0b0;
}
.feedback-box.info {
  background: rgba(124,111,255,0.08);
  border-color: rgba(124,111,255,0.3);
  color: #c0b8ff;
}

/* ─────────────────────────────────────────────
   RESPONSIVE ADJUSTMENTS
───────────────────────────────────────────── */
@media (max-width: 768px) {
  .hero { padding: 24px 0; }
  .theory-row { grid-template-columns: 1fr; }
  .module-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.5rem; }
  .module-grid { grid-template-columns: 1fr; }
  .game-container { padding: 16px; }
  .game-actions { flex-direction: column; }
  .btn-check, .btn-reset { width: 100%; text-align: center; }
}