/* HealthPliant Training Portal — styles.css */

/* ── Reset & Base ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #0f4c81;
  --accent: #0ea5e9;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #1e293b;
  --text-secondary: #64748b;
  --border: #e2e8f0;
  --radius: 10px;
  --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);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

html { font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Typography ────────────────────────────────────────── */
h1 { font-size: 1.75rem; font-weight: 700; color: var(--primary); letter-spacing: -0.02em; }
h2 { font-size: 1.35rem; font-weight: 600; color: var(--primary); }
h3 { font-size: 1.1rem; font-weight: 600; color: var(--text); }
p { margin-bottom: 0.75rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ────────────────────────────────────────────── */
.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.nav {
  background: var(--primary);
  color: #fff;
  padding: 0 1.5rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.nav-brand {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
}
.nav-links { display: flex; gap: 1rem; align-items: center; }
.nav-link {
  color: rgba(255,255,255,0.85);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  transition: background 0.15s;
}
.nav-link:hover { background: rgba(255,255,255,0.15); color: #fff; text-decoration: none; }
.nav-link.active { background: rgba(255,255,255,0.2); color: #fff; }

.main-content {
  flex: 1;
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* ── Cards ─────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}

/* ── Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font);
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #0284c7; transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.btn-secondary { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: #e2e8f0; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #16a34a; }
.btn-sm { padding: 0.4rem 0.85rem; font-size: 0.8rem; }
.btn-block { width: 100%; justify-content: center; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ── Badges ────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.badge-chc { background: #dbeafe; color: #1e40af; }
.badge-hh { background: #dcfce7; color: #166534; }
.badge-complete { background: #dcfce7; color: #166534; }
.badge-incomplete { background: #fef3c7; color: #92400e; }
.badge-overdue { background: #fee2e2; color: #991b1b; }

/* ── Course Catalog ────────────────────────────────────── */
.catalog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.catalog-filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 0.4rem 1rem;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.825rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font);
  color: var(--text-secondary);
}
.filter-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.filter-btn:hover:not(.active) { border-color: var(--accent); color: var(--accent); }

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}
.course-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
}
.course-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.course-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.5rem;
}
.course-card-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  flex: 1;
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.course-card-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.78rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
  padding-top: 0.75rem;
  margin-top: auto;
}

/* ── Course Player ─────────────────────────────────────── */
.player-progress {
  background: #e2e8f0;
  height: 6px;
  border-radius: 3px;
  margin-bottom: 1.5rem;
  overflow: hidden;
}
.player-progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.4s ease;
}

.lesson-content p {
  margin-bottom: 1rem;
  line-height: 1.7;
  font-size: 0.95rem;
}
.lesson-content p:first-child::first-letter {
  font-size: 1.3em;
  font-weight: 600;
  color: var(--primary);
}

.scenario-box {
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-left: 4px solid var(--warning);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin: 1.5rem 0;
}
.scenario-box h3 { color: #92400e; margin-bottom: 0.5rem; font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* ── Quiz ──────────────────────────────────────────────── */
.quiz-question {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1rem;
}
.quiz-counter {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}
.quiz-option {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.85rem 1rem;
  margin-bottom: 0.5rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font);
  color: var(--text);
  line-height: 1.5;
}
.quiz-option:hover:not(:disabled) { border-color: var(--accent); background: #f0f9ff; }
.quiz-option.correct { border-color: var(--success); background: #f0fdf4; color: #166534; }
.quiz-option.incorrect { border-color: var(--danger); background: #fef2f2; color: #991b1b; }
.quiz-option.correct-reveal { border-color: var(--success); background: #f0fdf4; }
.quiz-option:disabled { cursor: default; }

.explanation-box {
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ── Results ───────────────────────────────────────────── */
.results-score {
  text-align: center;
  padding: 2rem;
}
.results-score .score-number {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.results-score .score-number.pass { color: var(--success); }
.results-score .score-number.fail { color: var(--danger); }
.results-score .score-label {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* ── Login ─────────────────────────────────────────────── */
.login-container {
  max-width: 400px;
  margin: 4rem auto;
}
.login-header {
  text-align: center;
  margin-bottom: 2rem;
}
.input-group { margin-bottom: 1rem; }
.input-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.35rem;
}
.input-group input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: var(--font);
  transition: border-color 0.15s;
}
.input-group input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(14,165,233,0.15); }
.error-msg { color: var(--danger); font-size: 0.85rem; margin-bottom: 0.75rem; }

/* ── Dashboard Stats ───────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
}
.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ── Loading ───────────────────────────────────────────── */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 4rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-right: 0.75rem;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 640px) {
  .main-content { padding: 1rem; }
  .course-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  h1 { font-size: 1.4rem; }
  .nav { padding: 0 1rem; }
  .nav-brand { font-size: 1rem; }
}