/* =========================================
   DIY Injury Academy — Course Platform CSS
   Design tokens from landing page
   ========================================= */

:root {
  --ink: #0a0f1a;
  --slate: #2d3748;
  --muted: #64748b;
  --cream: #faf9f7;
  --warm: #f5f0eb;
  --navy: #002244;
  --action-green: #69BE28;
  --action-green-light: #82d63f;
  --silver: #A5ACAF;
  --white: #FFFFFF;
  --accent: #69BE28;
  --accent-light: #82d63f;
  --gold: #d4a853;
  --gold-light: #f0d78c;
  --border: rgba(0,0,0,0.08);
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
}

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

body {
  font-family: 'DM Sans', sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-family: 'Space Grotesk', sans-serif; }

/* ---- NAV ---- */
.nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  background: var(--navy);
  padding: 0 32px;
}
.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}
.nav-logo {
  display: flex;
  align-items: center;
  height: 50px;
}
.nav-logo img {
  height: 40px;
  width: auto;
}
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-link {
  font-size: 0.9rem;
  color: var(--silver);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  transition: background 0.15s;
}
.nav-link:hover { background: rgba(165,172,175,0.15); }
.nav-link.active { color: var(--action-green); }
.nav-cta {
  background: var(--action-green);
  color: var(--navy) !important;
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 600;
}
.nav-cta:hover { background: var(--action-green-light); }
.nav-greeting {
  font-size: 0.85rem;
  color: var(--silver);
  margin-right: 8px;
}
/* ---- HERO ---- */
.hero {
  padding: 140px 32px 80px;
  text-align: center;
}
.hero-inner {
  max-width: 720px;
  margin: 0 auto;
}
.hero-eyebrow {
  display: inline-block;
  background: rgba(196, 93, 62, 0.1);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 16px;
}
.hero p {
  font-size: 1.15rem;
  color: var(--slate);
  max-width: 540px;
  margin: 0 auto 32px;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,0,0,0.12); }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-light); }
.btn-outline {
  background: transparent;
  color: var(--ink);
  border: 2px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost { background: var(--warm); color: var(--ink); }
.btn-ghost:hover { background: #ede7df; }

/* ---- SECTION ---- */
.section {
  max-width: 1140px;
  margin: 0 auto;
  padding: 64px 32px;
}
.section-tag {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.section-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}
.section-desc {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 40px;
}

/* ---- COURSE CARDS ---- */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.course-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  color: inherit;
}
.course-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.course-thumb {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--warm);
}
.course-thumb-placeholder {
  width: 100%;
  height: 180px;
  background: linear-gradient(135deg, var(--warm) 0%, #e8e0d5 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.course-thumb-placeholder svg { opacity: 0.3; }
.course-body { padding: 24px; }
.course-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.course-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}
.course-card p {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.course-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.course-meta { font-size: 0.8rem; color: var(--muted); }

/* ---- PROGRESS BAR ---- */
.progress-wrap { display: flex; align-items: center; gap: 10px; }
.progress-label { font-size: 0.8rem; color: var(--muted); white-space: nowrap; }
.progress-bar {
  flex: 1;
  height: 6px;
  background: var(--warm);
  border-radius: 100px;
  overflow: hidden;
  min-width: 80px;
}
.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 100px;
  transition: width 0.4s ease;
}
.progress-pct { font-size: 0.8rem; font-weight: 600; color: var(--accent); }

/* ---- MODULE LIST ---- */
.module-list { display: flex; flex-direction: column; gap: 12px; }
.module-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: white;
  border-radius: 12px;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s, box-shadow 0.15s;
  border: 2px solid transparent;
}
.module-item:hover { transform: translateX(4px); box-shadow: var(--shadow-lg); }
.module-item.completed { border-color: rgba(196, 93, 62, 0.2); }
.module-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--warm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--slate);
  flex-shrink: 0;
}
.module-item.completed .module-number {
  background: var(--accent);
  color: white;
}
.module-info { flex: 1; }
.module-title { font-weight: 600; font-size: 0.95rem; margin-bottom: 4px; }
.module-desc { font-size: 0.82rem; color: var(--muted); }
.module-duration { font-size: 0.8rem; color: var(--muted); white-space: nowrap; }
.module-free-badge {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background: rgba(212, 168, 83, 0.15);
  color: var(--gold);
  padding: 3px 10px;
  border-radius: 100px;
}

/* ---- MODULE PLAYER ---- */
.player-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 0;
  height: calc(100vh - 72px);
  margin-top: 72px;
}
.player-main {
  padding: 32px 40px;
  overflow-y: auto;
}
.player-sidebar {
  background: var(--warm);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  padding: 24px;
}
.video-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--ink);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: white;
  margin-bottom: 28px;
}
.video-placeholder svg { opacity: 0.5; }
.video-placeholder span { font-size: 0.85rem; opacity: 0.5; }
.player-title { font-size: 1.8rem; font-weight: 700; letter-spacing: -0.5px; margin-bottom: 8px; }
.player-course { font-size: 0.85rem; color: var(--muted); margin-bottom: 24px; }
.player-course a { color: var(--accent); text-decoration: none; }
.player-desc { color: var(--slate); line-height: 1.7; margin-bottom: 32px; }
.mark-complete-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}
.mark-complete-btn:hover { background: var(--accent-light); transform: translateY(-1px); }
.mark-complete-btn.completed {
  background: #e8e8e8;
  color: var(--slate);
  cursor: default;
}
.mark-complete-btn.completed:hover { transform: none; }

/* ---- SIDEBAR ---- */
.sidebar-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}
.sidebar-modules { display: flex; flex-direction: column; gap: 8px; }
.sidebar-module {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--slate);
  font-size: 0.85rem;
  transition: background 0.15s;
}
.sidebar-module:hover { background: rgba(255,255,255,0.7); }
.sidebar-module.active { background: white; font-weight: 600; box-shadow: 0 1px 4px rgba(0,0,0,0.08); }
.sidebar-module-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
  color: var(--muted);
}
.sidebar-module.completed .sidebar-module-num {
  background: var(--accent);
  color: white;
}

/* ---- TEMPLATES ---- */
.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.template-card {
  background: white;
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--shadow);
  transition: transform 0.15s, box-shadow 0.15s;
}
.template-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.template-icon {
  width: 48px;
  height: 48px;
  background: var(--warm);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.template-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.template-card p { font-size: 0.82rem; color: var(--muted); margin-bottom: 20px; line-height: 1.5; }
.template-cat-badge {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  padding: 8px 16px;
  border: 2px solid var(--accent);
  border-radius: 8px;
  transition: background 0.15s, color 0.15s;
}
.download-btn:hover { background: var(--accent); color: white; }

/* ---- AUTH FORMS ---- */
.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 32px 40px;
  background: var(--cream);
}
.auth-box {
  width: 100%;
  max-width: 420px;
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--shadow-lg);
}
.auth-box h1 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}
.auth-box .sub { color: var(--muted); font-size: 0.9rem; margin-bottom: 28px; }
.auth-box .error-msg {
  background: rgba(220, 38, 38, 0.08);
  color: #dc2626;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.875rem;
  margin-bottom: 20px;
}
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: var(--slate); }
.form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: 10px;
  font-size: 0.95rem;
  font-family: 'DM Sans', sans-serif;
  background: var(--cream);
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s;
}
.form-group input:focus { border-color: var(--accent); }
.auth-box .btn { width: 100%; justify-content: center; margin-top: 4px; }
.auth-footer {
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 20px;
}
.auth-footer a { color: var(--accent); font-weight: 600; text-decoration: none; }

/* ---- 404 ---- */
.not-found {
  min-height: calc(100vh - 72px);
  margin-top: 72px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px;
}
.not-found h1 { font-size: 4rem; font-weight: 700; color: var(--warm); margin-bottom: 8px; }
.not-found p { color: var(--muted); margin-bottom: 32px; }

/* ---- PROGRESS HERO ---- */
.progress-hero {
  background: white;
  border-bottom: 1px solid var(--border);
  padding: 32px;
  margin-bottom: 40px;
  border-radius: 0 0 20px 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.progress-hero-inner { max-width: 900px; margin: 0 auto; }
.progress-hero h1 { font-size: 1.8rem; font-weight: 700; letter-spacing: -0.5px; margin-bottom: 4px; }
.progress-hero .subtitle { color: var(--muted); font-size: 0.9rem; margin-bottom: 20px; }
.progress-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.stat-item { display: flex; align-items: baseline; gap: 6px; }
.stat-num { font-family: 'Space Grotesk', sans-serif; font-size: 1.6rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 0.85rem; color: var(--muted); }

/* ---- TEMPLATE CATEGORY SECTIONS ---- */
.template-section { margin-bottom: 48px; }
.template-section h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .player-layout { grid-template-columns: 1fr; }
  .player-sidebar { display: none; }
  .course-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2rem; }
  .section { padding: 40px 20px; }
}