/* ============================================================
   PlayCourse Frontend — Premium Course Theme
   ============================================================ */

:root {
  --pco-primary-color:        #7A3FF2;
  /* color-mix() — all tints/shades derive from --pco-primary-color */
  --primary-color-dark:   color-mix(in srgb, var(--pco-primary-color) 80%, black);
  --primary-color-light:  color-mix(in srgb, var(--pco-primary-color) 12%, white);
  --primary-color-xlight: color-mix(in srgb, var(--pco-primary-color)  6%, white);
  --pc-text:           #111827;
  --pc-text-muted:     color-mix(in srgb, var(--pc-text) 42%, white);
  --pc-border:         color-mix(in srgb, var(--pc-text) 12%, white);
  --pc-surface:        #ffffff;
  --pc-bg:             #f8fafc;
  --pc-radius:         12px;
  --pc-shadow:         0 2px 8px rgba(0,0,0,.08);
  --pc-font:           -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* ── Course Archive ───────────────────────────────────────── */
.pc-course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 24px;
  margin: 32px 0;
}

.pc-course-card {
  background: var(--pc-surface);
  border-radius: var(--pc-radius);
  border: 1px solid var(--pc-border);
  box-shadow: var(--pc-shadow);
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.pc-course-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.12); }

.pc-course-thumb { position: relative; padding-top: 56%; overflow: hidden; background: var(--primary-color-light); }
.pc-course-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.pc-course-thumb-placeholder {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 48px; color: var(--pco-primary-color); opacity: .3;
}

.pc-course-body  { padding: 18px 20px; }
.pc-course-cat   { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; color: var(--pco-primary-color); margin-bottom: 6px; }
.pc-course-title { font-size: 16px; font-weight: 700; color: var(--pc-text); margin: 0 0 8px; line-height: 1.4; }
.pc-course-title a { color: inherit; text-decoration: none; }
.pc-course-title a:hover { color: var(--pco-primary-color); }
.pc-course-excerpt { font-size: 13px; color: var(--pc-text-muted); margin: 0 0 14px; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.pc-course-meta {
  display: flex; gap: 14px;
  font-size: 12px; color: var(--pc-text-muted);
  padding: 12px 0;
  border-top: 1px solid var(--pc-border);
  border-bottom: 1px solid var(--pc-border);
  margin-bottom: 14px;
}
.pc-course-meta span { display: flex; align-items: center; gap: 4px; }
.pc-course-meta i   { color: var(--pco-primary-color); }

.pc-course-footer { display: flex; justify-content: space-between; align-items: center; }
.pc-course-price  { font-size: 18px; font-weight: 700; color: var(--pc-text); }
.pc-course-price-free { color: var(--pco-primary-color); }

.pc-enroll-btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--pco-primary-color); color: #fff;
  padding: 8px 16px; border-radius: 8px;
  font-size: 13px; font-weight: 600;
  text-decoration: none; border: none; cursor: pointer;
  transition: background .2s;
}
.pc-enroll-btn:hover { background: var(--primary-color-dark); }

/* ── Single Course ────────────────────────────────────────── */
.pc-course-hero {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
  color: #fff;
  padding: 48px 32px;
  border-radius: var(--pc-radius);
  margin-bottom: 32px;
}
.pc-course-hero-title   { font-size: 30px; font-weight: 800; margin: 0 0 12px; line-height: 1.2; }
.pc-course-hero-excerpt { font-size: 15px; opacity: .85; margin: 0 0 24px; }
.pc-course-hero-meta    { display: flex; gap: 20px; font-size: 13px; opacity: .75; flex-wrap: wrap; }
.pc-course-hero-meta span { display: flex; align-items: center; gap: 5px; }

.pc-course-layout { display: grid; grid-template-columns: 1fr 340px; gap: 28px; align-items: start; }
@media (max-width: 900px) { .pc-course-layout { grid-template-columns: 1fr; } }

.pc-course-content h2 { font-size: 20px; font-weight: 700; margin: 28px 0 12px; }
.pc-curriculum-section { margin-bottom: 10px; }
.pc-curriculum-section-title {
  background: var(--pc-bg); padding: 12px 16px;
  border-radius: 8px; font-weight: 600; font-size: 14px;
  cursor: pointer; display: flex; justify-content: space-between; align-items: center;
  border: 1px solid var(--pc-border);
}
.pc-curriculum-lessons { padding: 4px 0 4px 12px; }
.pc-lesson-row {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 8px; font-size: 13px;
  color: var(--pc-text-muted);
}
.pc-lesson-row:hover { background: var(--pc-bg); }
.pc-lesson-row i { color: var(--pco-primary-color); font-size: 15px; }

.pc-course-sidebar-card {
  background: var(--pc-surface); border-radius: var(--pc-radius);
  border: 1px solid var(--pc-border); box-shadow: var(--pc-shadow);
  padding: 24px; position: sticky; top: 32px;
}
.pc-sidebar-price { font-size: 30px; font-weight: 800; margin: 0 0 16px; }
.pc-sidebar-enroll {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--pco-primary-color); color: #fff;
  padding: 13px; border-radius: 10px;
  font-size: 15px; font-weight: 700; text-decoration: none;
  border: none; cursor: pointer; width: 100%; margin-bottom: 16px;
  transition: background .2s;
}
.pc-sidebar-enroll:hover { background: var(--primary-color-dark); }
.pc-sidebar-features { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.pc-sidebar-features li { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--pc-text-muted); }
.pc-sidebar-features i  { color: var(--pco-primary-color); font-size: 15px; }

/* ── Lesson Player ────────────────────────────────────────── */
.pc-lesson-layout { display: grid; grid-template-columns: 1fr 300px; gap: 24px; }
@media (max-width: 900px) { .pc-lesson-layout { grid-template-columns: 1fr; } }

.pc-video-wrap {
  position: relative; padding-top: 56.25%;
  background: #000; border-radius: var(--pc-radius); overflow: hidden; margin-bottom: 20px;
}
.pc-video-wrap iframe, .pc-video-wrap video {
  position: absolute; inset: 0; width: 100%; height: 100%; border: none;
}
.pc-lesson-nav { display: flex; gap: 10px; }

.pc-lesson-sidebar { background: var(--pc-surface); border-radius: var(--pc-radius); border: 1px solid var(--pc-border); overflow: hidden; }
.pc-lesson-sidebar-title { padding: 14px 16px; font-weight: 700; font-size: 14px; border-bottom: 1px solid var(--pc-border); background: var(--pc-bg); }
.pc-lesson-list { list-style: none; padding: 0; margin: 0; }
.pc-lesson-list-item a { display: flex; align-items: center; gap: 8px; padding: 11px 16px; font-size: 13px; text-decoration: none; color: var(--pc-text); border-bottom: 1px solid var(--pc-border); transition: background .15s; }
.pc-lesson-list-item a:hover { background: var(--primary-color-light); color: var(--pco-primary-color); }
.pc-lesson-list-item.pc-active a { background: var(--primary-color-light); color: var(--pco-primary-color); font-weight: 600; }
.pc-lesson-list-item i { font-size: 15px; }

/* ── Schedule Notice (single course) ─────────────────────────── */
.pc-schedule-notice {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: var(--pc-radius);
  margin-bottom: 24px;
  font-size: 14px;
}

.pc-schedule-notice--upcoming {
  background: color-mix(in srgb, var(--pco-primary-color) 8%, white);
  border: 1px solid color-mix(in srgb, var(--pco-primary-color) 25%, white);
  color: var(--primary-color-dark);
}

.pc-schedule-notice--started {
  background: color-mix(in srgb, var(--pco-primary-color) 8%, white);
  border: 1px solid color-mix(in srgb, var(--pco-primary-color) 25%, white);
  color: var(--primary-color-dark);
}

.pc-schedule-notice-icon {
  font-size: 22px;
  flex-shrink: 0;
  line-height: 1;
}

.pc-schedule-notice-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.pc-schedule-notice-content strong {
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .4px;
}

.pc-schedule-notice-content span {
  font-size: 14px;
}

.pc-coming-soon-pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 100px;
  background: var(--pco-primary-color);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .4px;
  text-transform: uppercase;
  flex-shrink: 0;
}

/* ── Coming Soon Badge (course thumbnail overlay) ─────────────── */
.pc-coming-soon-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border-radius: 100px;
  background: var(--pco-primary-color);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .4px;
  text-transform: uppercase;
  pointer-events: none;
  z-index: 2;
}

/* ── Course meta bar (single) ────────────────────────────────── */
.pc-course-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  background: var(--pc-bg);
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius);
  margin-bottom: 24px;
  font-size: 13px;
}

.pc-course-meta-bar-price { display: flex; align-items: center; gap: 8px; }

.pc-price-badge {
  font-size: 16px;
  font-weight: 800;
  color: var(--pc-text);
}

.pc-price-badge--free { color: var(--pco-primary-color); }
.pc-price-badge--sale { color: var(--pco-primary-color); }

.pc-price-regular {
  font-size: 13px;
  color: var(--pc-text-muted);
  text-decoration: line-through;
}

.pc-course-meta-bar-cats {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--pc-text-muted);
}

.pc-course-meta-bar-cats i { color: var(--pco-primary-color); }

.pc-course-meta-bar-tags { display: flex; flex-wrap: wrap; gap: 5px; }

.pc-tag-chip {
  display: inline-flex;
  padding: 2px 9px;
  background: var(--primary-color-light);
  color: var(--pco-primary-color);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
}

.pc-course-meta-bar-author {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--pc-text-muted);
  margin-left: auto;
}

.pc-course-author-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  vertical-align: middle;
}

/* ── Border utilities (Tailwind-compatible, preflight-safe) ── */
.border   { border-width: 1px; }
.border-0 { border-width: 0; }
.border-2 { border-width: 2px; }
.border-4 { border-width: 4px; }
.border-8 { border-width: 8px; }

.border-t { border-width: 1px 0 0 0; }
.border-r { border-width: 0 1px 0 0; }
.border-b { border-width: 0 0 1px 0; }
.border-l { border-width: 0 0 0 1px; }
.border-x { border-width: 0 1px 0 1px; }
.border-y { border-width: 1px 0 1px 0; }

.border-t-0 { border-top-width: 0; }
.border-t-2 { border-width: 2px 0 0 0; }
.border-t-4 { border-width: 4px 0 0 0; }
.border-t-8 { border-width: 8px 0 0 0; }

.border-r-0 { border-right-width: 0; }
.border-r-2 { border-width: 0 2px 0 0; }
.border-r-4 { border-width: 0 4px 0 0; }
.border-r-8 { border-width: 0 8px 0 0; }

.border-b-0 { border-bottom-width: 0; }
.border-b-2 { border-width: 0 0 2px 0; }
.border-b-4 { border-width: 0 0 4px 0; }
.border-b-8 { border-width: 0 0 8px 0; }

.border-l-0 { border-left-width: 0; }
.border-l-2 { border-width: 0 0 0 2px; }
.border-l-4 { border-width: 0 0 0 4px; }
.border-l-8 { border-width: 0 0 0 8px; }