/* ============================================================
   Protegido.Digital — Cursos CSS
   Herda todas as variaveis do style.css
   ============================================================ */

/* ===== PAGE HEADER ===== */
.page-header {
  position: relative; overflow: hidden;
  padding: 140px 28px 80px;
  background: var(--c-bg);
}
.page-header::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 70% 15%, rgba(73,235,211,0.08) 0%, transparent 55%),
    radial-gradient(ellipse 50% 70% at 5% 65%, rgba(13,148,136,0.09) 0%, transparent 50%);
  pointer-events: none;
}
.page-header-bg { position: absolute; inset: 0; pointer-events: none; }
.page-header-content { position: relative; z-index: 2; max-width: 700px; }
.page-header-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800; line-height: 1.1;
  letter-spacing: -0.02em; margin-bottom: 16px;
}
.page-header-sub {
  color: var(--c-muted); font-size: 1.05rem;
  line-height: 1.7; max-width: 520px;
}

/* ===== FILTROS ===== */
.cursos-filters {
  padding: 32px 0;
  background: var(--c-bg2);
  border-bottom: 1px solid var(--c-border);
  position: sticky; top: 72px; z-index: 100;
  backdrop-filter: blur(20px);
}
.cursos-filters .container {
  display: flex; align-items: center;
  gap: 16px; flex-wrap: wrap;
}
.filter-chips { display: flex; gap: 8px; flex-wrap: wrap; flex: 1; }
.filter-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 16px; border-radius: 50px;
  background: var(--c-bg3); border: 1px solid var(--c-border);
  color: var(--c-muted); font-size: 0.82rem; font-weight: 600;
  cursor: pointer; transition: all var(--t) var(--ease);
  white-space: nowrap;
}
.filter-chip:hover { border-color: var(--c-border-a); color: var(--c-white); }
.filter-chip.active {
  background: var(--c-accent-xs); border-color: var(--c-accent);
  color: var(--c-accent);
}
.filter-chip .chip-x {
  width: 14px; height: 14px; border-radius: 50%;
  background: rgba(73,235,211,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem; line-height: 1;
}
.filter-sort {
  display: flex; align-items: center; gap: 8px;
  color: var(--c-muted); font-size: 0.82rem;
}
.filter-sort select {
  background: var(--c-bg3); border: 1px solid var(--c-border);
  border-radius: var(--r-xs); color: var(--c-white);
  font-family: 'Inter', sans-serif; font-size: 0.82rem;
  padding: 7px 12px; cursor: pointer; outline: none;
  transition: border-color var(--t);
}
.filter-sort select:focus { border-color: var(--c-border-a); }
.filter-count {
  color: var(--c-dim); font-size: 0.8rem;
  white-space: nowrap;
}

/* ===== BUSCA ===== */
.cursos-search {
  position: relative; min-width: 220px;
}
.cursos-search i {
  position: absolute; left: 14px; top: 50%;
  transform: translateY(-50%);
  color: var(--c-dim); font-size: 0.85rem;
  pointer-events: none;
}
.cursos-search input {
  width: 100%;
  background: var(--c-bg3); border: 1px solid var(--c-border);
  border-radius: 50px; color: var(--c-white);
  font-family: 'Inter', sans-serif; font-size: 0.85rem;
  padding: 9px 16px 9px 38px;
  transition: all var(--t); outline: none;
}
.cursos-search input::placeholder { color: var(--c-dim); }
.cursos-search input:focus {
  border-color: var(--c-border-a);
  background: rgba(73,235,211,0.03);
  box-shadow: 0 0 0 3px rgba(73,235,211,0.08);
}

/* ===== CARROSSEL CONTINUAR ===== */
.continuar-section {
  padding: 48px 0 0;
  background: var(--c-bg);
}
.continuar-scroll {
  display: flex; gap: 16px;
  overflow-x: auto; padding-bottom: 8px;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}
.continuar-scroll::-webkit-scrollbar { display: none; }
.continuar-card {
  flex-shrink: 0; width: 280px;
  background: var(--c-bg3); border: 1px solid var(--c-border);
  border-radius: var(--r-sm); padding: 20px;
  scroll-snap-align: start;
  transition: all var(--t) var(--ease);
  text-decoration: none; color: inherit;
  position: relative; overflow: hidden;
}
.continuar-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--g-main);
}
.continuar-card:hover { border-color: var(--c-border-a); transform: translateY(-3px); }
.continuar-card h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 12px; }
.continuar-progress-bar {
  height: 4px; background: var(--c-border);
  border-radius: 2px; overflow: hidden; margin-bottom: 8px;
}
.continuar-progress-fill {
  height: 100%; background: var(--g-main);
  border-radius: 2px; transition: width 0.6s var(--ease);
}
.continuar-pct { font-size: 0.75rem; color: var(--c-accent); font-weight: 600; }

/* ===== GRID DE CURSOS ===== */
.cursos-main { padding: 48px 0 100px; background: var(--c-bg); }
.cursos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ===== COURSE CARD ===== */
.course-card {
  background: var(--c-bg3); border: 1px solid var(--c-border);
  border-radius: var(--r); overflow: hidden;
  transition: all var(--t) var(--ease);
  text-decoration: none; color: inherit;
  display: flex; flex-direction: column;
  position: relative;
}
.course-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(73,235,211,0.35), transparent);
  opacity: 0; transition: opacity var(--t);
}
.course-card:hover {
  border-color: var(--c-border-a);
  transform: translateY(-5px);
  box-shadow: var(--sh-card), 0 0 40px rgba(73,235,211,0.08);
}
.course-card:hover::before { opacity: 1; }

.course-card__thumb {
  position: relative; aspect-ratio: 16/9;
  background: var(--c-logo); overflow: hidden;
}
.course-card__thumb img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.course-card:hover .course-card__thumb img { transform: scale(1.04); }
.course-card__thumb-icon {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem; color: var(--c-accent); opacity: 0.3;
}
.course-card__badges {
  position: absolute; top: 12px; left: 12px;
  display: flex; gap: 6px; flex-wrap: wrap;
}
.course-badge {
  padding: 3px 10px; border-radius: 50px;
  font-size: 0.68rem; font-weight: 800;
  letter-spacing: 0.06em; text-transform: uppercase;
  backdrop-filter: blur(12px);
}
.course-badge--popular { background: var(--g-main); color: #0e1a18; }
.course-badge--novo { background: rgba(168,85,247,0.85); color: #fff; }
.course-badge--gratuito { background: rgba(34,197,94,0.85); color: #fff; }

.course-card__body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.course-card__meta {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 12px; flex-wrap: wrap;
}
.course-nivel {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px; border-radius: 50px;
  font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
}
.course-nivel--iniciante { background: rgba(34,197,94,0.12); color: #22c55e; }
.course-nivel--intermediario { background: rgba(245,158,11,0.12); color: #f59e0b; }
.course-nivel--avancado { background: rgba(239,68,68,0.12); color: #ef4444; }

.course-card__title {
  font-size: 1.05rem; font-weight: 700;
  margin-bottom: 8px; line-height: 1.3;
}
.course-card__desc {
  color: var(--c-muted); font-size: 0.85rem;
  line-height: 1.6; margin-bottom: 16px; flex: 1;
}
.course-card__stats {
  display: flex; gap: 14px; margin-bottom: 16px;
  font-size: 0.78rem; color: var(--c-dim);
}
.course-card__stats span { display: flex; align-items: center; gap: 5px; }
.course-card__stats i { color: var(--c-accent); font-size: 0.72rem; }
.course-card__rating {
  display: flex; align-items: center; gap: 5px;
  font-size: 0.78rem; color: var(--c-dim);
  margin-bottom: 16px;
}
.course-card__rating .stars { color: #f59e0b; font-size: 0.72rem; }
.course-card__rating .count { color: var(--c-dim); }
.course-card__footer {
  display: flex; align-items: center;
  justify-content: space-between; gap: 12px;
  padding-top: 16px; border-top: 1px solid var(--c-border);
}
.course-price { font-size: 1.1rem; font-weight: 800; color: var(--c-white); }
.course-price small {
  display: block; font-size: 0.72rem;
  font-weight: 400; color: var(--c-dim);
}
.course-price--free { color: #22c55e; }

/* ===== SKELETON ===== */
.skeleton { pointer-events: none; }
.skeleton-thumb {
  aspect-ratio: 16/9; background: var(--c-logo);
  border-radius: var(--r-sm) var(--r-sm) 0 0;
}
.skeleton-body { padding: 22px; }
.skeleton-line {
  height: 12px; border-radius: 6px;
  background: linear-gradient(90deg, var(--c-logo) 25%, var(--c-logo-l) 50%, var(--c-logo) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  margin-bottom: 10px;
}
.skeleton-line--title { height: 18px; width: 80%; }
.skeleton-line--text { width: 100%; }
.skeleton-line--short { width: 55%; }
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center; padding: 80px 28px;
  color: var(--c-dim);
}
.empty-state i { font-size: 3rem; margin-bottom: 16px; opacity: 0.4; }
.empty-state p { font-size: 1rem; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .cursos-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .cursos-grid { grid-template-columns: 1fr; }
  .cursos-filters .container { flex-direction: column; align-items: stretch; }
  .filter-chips { justify-content: flex-start; }
}