/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  position: relative; overflow: hidden;
  padding: 100px 24px 60px;
}
.hero-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
  position: relative; z-index: 1;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px;
  background: rgba(0,212,255,0.08);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.78rem;
  color: var(--primary);
  font-family: var(--font-display);
  letter-spacing: 2px;
  margin-bottom: 28px;
  animation: fadeDown 0.8s ease both;
}
.hero-badge .dot { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(1.4)} }
@keyframes fadeDown { from{opacity:0;transform:translateY(-20px)} to{opacity:1;transform:translateY(0)} }

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 900;
  color: var(--text-bright);
  line-height: 1.1;
  margin-bottom: 24px;
  animation: fadeUp 0.9s 0.2s ease both;
}
.hero-title .line-primary { color: var(--primary); }
.hero-title .line-accent { color: var(--accent); }
@keyframes fadeUp { from{opacity:0;transform:translateY(30px)} to{opacity:1;transform:translateY(0)} }

.hero-desc {
  font-size: 1.05rem; line-height: 1.8;
  color: var(--text-muted); max-width: 500px;
  margin-bottom: 40px;
  animation: fadeUp 0.9s 0.35s ease both;
}
.hero-actions {
  display: flex; gap: 16px; flex-wrap: wrap;
  animation: fadeUp 0.9s 0.5s ease both;
}
.hero-stats {
  display: flex; gap: 40px; margin-top: 56px;
  animation: fadeUp 0.9s 0.65s ease both;
}
.stat-item { text-align: left; }
.stat-num {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 900;
  color: var(--primary);
  line-height: 1;
}
.stat-num span { color: var(--accent); }
.stat-label { font-size: 0.8rem; color: var(--text-muted); letter-spacing: 1px; margin-top: 4px; }

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex; align-items: center; justify-content: center;
  animation: fadeUp 1s 0.4s ease both;
}
.hero-ring {
  width: 420px; height: 420px;
  border-radius: 50%;
  border: 1px solid rgba(0,212,255,0.15);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  animation: spin 25s linear infinite;
}
.hero-ring-inner {
  width: 320px; height: 320px;
  border-radius: 50%;
  border: 1px solid rgba(0,255,136,0.1);
  display: flex; align-items: center; justify-content: center;
  animation: spin 18s linear infinite reverse;
}
.hero-core {
  width: 220px; height: 220px;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-card2));
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 8px;
  box-shadow: var(--glow-strong), inset 0 0 40px rgba(0,212,255,0.05);
  animation: none;
}
.hero-core-icon { font-size: 3rem; }
.hero-core-text {
  font-family: var(--font-display);
  font-size: 0.65rem; letter-spacing: 3px;
  color: var(--primary); font-weight: 700;
}
@keyframes spin { from{transform:rotate(0deg)} to{transform:rotate(360deg)} }

.orbit-dot {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: var(--glow);
  animation: none;
}
.orbit-dot:nth-child(1) { top: 20px; left: 50%; transform: translateX(-50%); background: var(--accent); }
.orbit-dot:nth-child(2) { bottom: 20px; right: 20px; }
.orbit-dot:nth-child(3) { top: 50%; left: 20px; transform: translateY(-50%); background: var(--secondary); }

.floating-chip {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 0.75rem;
  font-family: var(--font-display);
  color: var(--primary);
  letter-spacing: 1px;
  animation: float 4s ease-in-out infinite;
  white-space: nowrap;
}
.chip-1 { top: 30px; left: -40px; animation-delay: 0s; }
.chip-2 { bottom: 60px; right: -50px; animation-delay: 1.5s; color: var(--accent); border-color: rgba(0,255,136,0.3); }
.chip-3 { top: 50%; left: -60px; animation-delay: 0.8s; color: var(--secondary); border-color: rgba(255,107,0,0.3); }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }

/* ===== COURSES ===== */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}
.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.course-card:hover {
  border-color: var(--primary);
  box-shadow: var(--glow);
  transform: translateY(-6px);
}
.course-header {
  padding: 28px 28px 20px;
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 16px;
}
.course-icon-wrap {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.course-badge {
  font-family: var(--font-display);
  font-size: 0.62rem;
  letter-spacing: 2px;
  padding: 5px 12px;
  border-radius: 100px;
  font-weight: 600;
}
.badge-hot { background: rgba(255,107,0,0.15); color: var(--secondary); border: 1px solid rgba(255,107,0,0.3); }
.badge-new { background: rgba(0,255,136,0.1); color: var(--accent); border: 1px solid rgba(0,255,136,0.3); }
.badge-top { background: rgba(0,212,255,0.1); color: var(--primary); border: 1px solid var(--border); }

.course-body { padding: 0 28px 28px; }
.course-title {
  font-family: var(--font-display);
  font-size: 1.05rem; font-weight: 700;
  color: var(--text-bright); margin-bottom: 10px;
}
.course-desc { font-size: 0.88rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 20px; }
.course-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.tag {
  font-size: 0.72rem; padding: 4px 12px;
  background: rgba(0,212,255,0.06);
  border: 1px solid rgba(0,212,255,0.15);
  border-radius: 6px; color: var(--text-muted);
  font-family: var(--font-display); letter-spacing: 0.5px;
}
.course-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 28px;
  border-top: 1px solid var(--border);
  background: rgba(0,0,0,0.15);
}
.course-meta { display: flex; align-items: center; gap: 16px; }
.meta-item { display: flex; align-items: center; gap: 6px; font-size: 0.8rem; color: var(--text-muted); }
.meta-item i { color: var(--primary); font-size: 0.85rem; }
.course-price {
  font-family: var(--font-display);
  font-size: 1.1rem; font-weight: 700;
  color: var(--accent);
}

/* Course filter */
.filter-tabs {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 48px;
}
.filter-tab {
  padding: 9px 20px;
  font-family: var(--font-display);
  font-size: 0.72rem; letter-spacing: 1.5px;
  font-weight: 600; text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}
.filter-tab:hover, .filter-tab.active {
  background: rgba(0,212,255,0.1);
  border-color: var(--primary);
  color: var(--primary);
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.about-visual {
  position: relative;
}
.about-img-frame {
  width: 100%; aspect-ratio: 1;
  max-width: 460px;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-card2));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  box-shadow: var(--glow);
}
.about-img-frame::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(0,212,255,0.05), transparent 60%);
}
.about-big-icon { font-size: 8rem; opacity: 0.15; }
.about-cards-float {
  position: absolute; right: -30px; top: 50%;
  transform: translateY(-50%);
  display: flex; flex-direction: column; gap: 12px;
}
.mini-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  display: flex; align-items: center; gap: 12px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
  animation: float 5s ease-in-out infinite;
  min-width: 180px;
}
.mini-card:nth-child(2) { animation-delay: 1.2s; }
.mini-card:nth-child(3) { animation-delay: 2.4s; }
.mini-card-icon { font-size: 1.5rem; }
.mini-card-info { line-height: 1.2; }
.mini-card-val { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; color: var(--primary); }
.mini-card-lbl { font-size: 0.75rem; color: var(--text-muted); }

.about-features { list-style: none; display: flex; flex-direction: column; gap: 16px; margin: 32px 0; }
.about-features li {
  display: flex; align-items: flex-start; gap: 14px;
  font-size: 0.95rem; color: var(--text-muted); line-height: 1.6;
}
.check-icon {
  width: 22px; height: 22px; flex-shrink: 0;
  background: rgba(0,255,136,0.1);
  border: 1px solid rgba(0,255,136,0.3);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent); font-size: 0.75rem; margin-top: 2px;
}

/* ===== TEAM ===== */
.team-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}
.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
}
.team-card:hover {
  border-color: var(--primary);
  box-shadow: var(--glow);
  transform: translateY(-6px);
}
.team-avatar {
  width: 90px; height: 90px;
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem;
  border: 2px solid var(--border);
  background: var(--bg-card2);
  position: relative;
}
.team-avatar::after {
  content: '';
  position: absolute; inset: -4px;
  border-radius: 50%;
  border: 1px solid transparent;
  background: linear-gradient(135deg, var(--primary), var(--accent)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
}
.team-name { font-family: var(--font-display); font-size: 1rem; font-weight: 700; color: var(--text-bright); margin-bottom: 6px; }
.team-role { font-size: 0.82rem; color: var(--primary); margin-bottom: 14px; letter-spacing: 1px; }
.team-bio { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 20px; }
.team-socials { display: flex; justify-content: center; gap: 10px; }
.social-btn {
  width: 36px; height: 36px;
  background: rgba(0,212,255,0.08);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 0.9rem;
  text-decoration: none; transition: var(--transition);
}
.social-btn:hover { background: var(--primary); color: var(--bg-dark); border-color: var(--primary); }

/* ===== TESTIMONIALS ===== */
.testimonials-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}
.testimonial-card:hover { border-color: var(--primary); box-shadow: var(--glow); }
.stars { color: #ffc107; letter-spacing: 2px; margin-bottom: 16px; }
.testimonial-text { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 24px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.author-avatar {
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--bg-card2); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
}
.author-name { font-family: var(--font-display); font-size: 0.88rem; font-weight: 700; color: var(--text-bright); }
.author-role { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }

/* ===== CONTACT ===== */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1.4fr;
  gap: 60px; align-items: start;
}
.contact-info-cards { display: flex; flex-direction: column; gap: 16px; margin-bottom: 36px; }
.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex; align-items: center; gap: 16px;
}
.contact-info-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: rgba(0,212,255,0.1);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: var(--primary); flex-shrink: 0;
}
.contact-info-label { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 4px; font-family: var(--font-display); letter-spacing: 1px; }
.contact-info-val { font-size: 0.92rem; color: var(--text-bright); font-weight: 500; }

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.form-title { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; color: var(--text-bright); margin-bottom: 28px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.form-label { font-size: 0.78rem; font-family: var(--font-display); letter-spacing: 1.5px; color: var(--text-muted); text-transform: uppercase; }
.form-input, .form-select, .form-textarea {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-main);
  transition: var(--transition);
  outline: none;
  width: 100%;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.08);
}
.form-textarea { resize: vertical; min-height: 120px; }
.form-select option { background: var(--bg-dark); }
.form-submit { width: 100%; padding: 16px; font-size: 0.85rem; margin-top: 8px; }

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-card2);
  border-top: 1px solid var(--border);
  padding: 70px 24px 32px;
}
.footer-grid {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px; margin-bottom: 56px;
}
.footer-brand p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; margin-top: 16px; max-width: 280px; }
.footer-socials { display: flex; gap: 10px; margin-top: 24px; }
.footer-col-title { font-family: var(--font-display); font-size: 0.75rem; letter-spacing: 3px; color: var(--text-bright); margin-bottom: 20px; text-transform: uppercase; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 0.88rem; color: var(--text-muted); text-decoration: none; transition: var(--transition); }
.footer-links a:hover { color: var(--primary); padding-left: 6px; }
.footer-bottom {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 28px; border-top: 1px solid var(--border);
  font-size: 0.82rem; color: var(--text-muted);
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom span { color: var(--primary); }

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(0,0,0,0.85); backdrop-filter: blur(10px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px; opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  max-width: 560px; width: 100%;
  transform: scale(0.9); transition: transform 0.3s;
  position: relative;
}
.modal-overlay.open .modal { transform: scale(1); }
.modal-close {
  position: absolute; top: 20px; right: 20px;
  background: rgba(0,212,255,0.08); border: 1px solid var(--border);
  border-radius: 8px; width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; color: var(--text-muted); font-size: 1.1rem;
  transition: var(--transition);
}
.modal-close:hover { background: var(--primary); color: var(--bg-dark); }

/* ===== TOAST ===== */
.toast {
  position: fixed; bottom: 32px; right: 32px; z-index: 3000;
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 24px;
  display: flex; align-items: center; gap: 12px;
  font-size: 0.9rem; color: var(--text-bright);
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
  transform: translateY(100px); opacity: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}
.toast.show { transform: translateY(0); opacity: 1; pointer-events: all; }
.toast-icon { font-size: 1.2rem; color: var(--accent); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; gap: 60px; }
  .hero-desc { margin: 0 auto 40px; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { order: -1; }
  .about-grid { grid-template-columns: 1fr; }
  .about-img-frame { max-width: 100%; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 70px 0; }
  .form-row { grid-template-columns: 1fr; }
  .hero-ring { width: 280px; height: 280px; }
  .hero-ring-inner { width: 210px; height: 210px; }
  .hero-core { width: 150px; height: 150px; }
  .hero-core-icon { font-size: 2rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .courses-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr 1fr; }
}