/* ============================================
   ISTech - Courses Page (courses.css)
   ============================================ */

/* ---------- Filter Bar ---------- */
.filter-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: var(--nav-h);
  z-index: 100;
}

.filter-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  max-width: 1180px;
  margin: 0 auto;
  gap: 20px;
}

.filter-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.filter-tab {
  padding: 9px 20px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface-alt);
  border: 1px solid var(--border);
  transition: all var(--transition);
  font-family: var(--font-body);
  cursor: pointer;
}

.filter-tab:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.filter-tab.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.filter-count {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
}

.filter-count span {
  font-weight: 700;
  color: var(--accent);
  font-size: 16px;
}

/* ---------- Courses Grid ---------- */
.all-courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* ---------- Full Course Card ---------- */
.full-course-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
}

.full-course-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.fcc-header {
  height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.fcc-icon {
  font-size: 52px;
  filter: drop-shadow(0 4px 16px rgba(0,0,0,0.2));
}

.fcc-cat-badge {
  position: absolute;
  top: 14px; right: 14px;
  background: rgba(255,255,255,0.2);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 50px;
  backdrop-filter: blur(6px);
}

/* Color variants */
.fcc-blue   { background: linear-gradient(135deg, #0a2540 0%, #1a4a8a 100%); }
.fcc-teal   { background: linear-gradient(135deg, #006b5f 0%, #00c2a8 100%); }
.fcc-orange { background: linear-gradient(135deg, #c44a00 0%, #ff6b35 100%); }
.fcc-purple { background: linear-gradient(135deg, #4a0080 0%, #9b59b6 100%); }
.fcc-green  { background: linear-gradient(135deg, #1a6b00 0%, #4caf50 100%); }
.fcc-red    { background: linear-gradient(135deg, #8b0000 0%, #e53935 100%); }
.fcc-navy   { background: linear-gradient(135deg, #001a40 0%, #0d3a6e 100%); }
.fcc-indigo { background: linear-gradient(135deg, #1a0066 0%, #5c35cc 100%); }

.fcc-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.fcc-body h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

.fcc-body > p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.fcc-features {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 16px;
  background: var(--surface-alt);
  border-radius: var(--radius-sm);
}

.fcc-features li {
  font-size: 13px;
  color: var(--text);
  font-weight: 400;
}

.fcc-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.fcc-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(10,37,64,0.07);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  border-radius: 50px;
}

.fcc-btn {
  margin-top: auto;
  width: 100%;
  justify-content: center;
  padding: 14px;
}

/* ---------- Courses CTA ---------- */
.courses-cta-section {
  background: var(--surface-alt);
  border-top: 1px solid var(--border);
  padding: 60px 0;
  text-align: center;
}

.courses-cta-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
}

.courses-cta-inner p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 28px;
  font-weight: 300;
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .all-courses-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
  .all-courses-grid { grid-template-columns: 1fr; }
  .filter-inner { flex-direction: column; align-items: flex-start; }
}