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

:root {
  --gold:    #c9a84c;
  --gold-dim: rgba(201,168,76,0.15);
  --ink:     #050a07;
  --deep:    #0a100c;
  --mid:     #111a14;
  --text:    rgba(255,255,255,0.82);
  --muted:   rgba(255,255,255,0.45);
  --white:   #ffffff;
  --teal:    #2a8c6e;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--ink);
  color: var(--text);
  line-height: 1.75;
  overflow-x: hidden;
}

/* ─── NAV ─── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.4rem 3rem;
  background: rgba(5,10,7,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201,168,76,0.12);
}
.nav-logo {
  display: flex; align-items: center; gap: 0.9rem;
  text-decoration: none;
}
.nav-logo-chinese {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem; color: var(--gold); line-height: 1;
}
.nav-logo-divider { width: 1px; height: 22px; background: rgba(201,168,76,0.4); }
.nav-logo-en {
  font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted); line-height: 1.3;
}
.nav-links { display: flex; align-items: center; gap: 1.8rem; }
.nav-links a {
  color: var(--muted); text-decoration: none;
  font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--gold); }
.nav-cta {
  padding: 0.55rem 1.5rem; border-radius: 2rem;
  border: 1px solid var(--gold); color: var(--gold);
  text-decoration: none; font-size: 0.78rem; letter-spacing: 0.1em;
  text-transform: uppercase; font-weight: 500;
  transition: all 0.25s;
}
.nav-cta:hover { background: var(--gold); color: var(--ink); }

/* ─── COURSE INDEX HERO ─── */
.courses-hero {
  max-width: 800px; margin: 0 auto;
  padding: 9rem 2rem 3rem;
  text-align: center;
}

.courses-hero h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 300; color: var(--white);
  margin-bottom: 1rem;
}

.courses-hero p {
  font-size: 1.05rem; color: var(--muted);
  max-width: 560px; margin: 0 auto 1rem;
  line-height: 1.7;
}

.courses-hero .coming-soon-badge {
  display: inline-block;
  padding: 0.35rem 1.2rem;
  border: 1px solid rgba(201,168,76,0.4);
  border-radius: 2rem;
  font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 2rem;
}

/* ─── COURSE CARDS (index) ─── */
.course-cards {
  max-width: 960px; margin: 0 auto;
  padding: 0 2rem 3rem;
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.course-card {
  display: flex; flex-direction: column;
  border: 1px solid rgba(201,168,76,0.15);
  border-radius: 1rem;
  padding: 2rem 1.8rem;
  background: rgba(201,168,76,0.03);
  transition: border-color 0.3s, transform 0.3s;
  text-decoration: none;
}

.course-card:hover {
  border-color: rgba(201,168,76,0.4);
  transform: translateY(-4px);
}

.course-card-tier {
  font-size: 0.65rem; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 0.8rem;
}

.course-card-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem; font-weight: 400;
  color: var(--white); line-height: 1.25;
  margin-bottom: 0.8rem;
}

.course-card-desc {
  font-size: 0.88rem; color: var(--muted);
  line-height: 1.6; flex: 1;
  margin-bottom: 1.5rem;
}

.course-card-meta {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 1rem;
  border-top: 1px solid rgba(201,168,76,0.1);
}

.course-card-price {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem; color: var(--white); font-weight: 400;
}

.course-card-price .period {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem; color: var(--muted);
}

.course-card-cta {
  font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--gold);
}

/* ─── COURSE DETAIL PAGE ─── */
.course-detail {
  max-width: 760px; margin: 0 auto;
  padding: 8rem 2rem 4rem;
}

.course-tier-badge {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: 2rem;
  font-size: 0.68rem; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
}

.course-detail h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 300; color: var(--white);
  line-height: 1.15;
  margin-bottom: 1rem;
}

.course-subtitle {
  font-size: 1.05rem; color: var(--muted);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

/* Stats row */
.course-stats {
  display: flex; gap: 2rem;
  padding: 1.5rem 0;
  border-top: 1px solid rgba(201,168,76,0.12);
  border-bottom: 1px solid rgba(201,168,76,0.12);
  margin-bottom: 2.5rem;
}

.course-stat {
  text-align: center; flex: 1;
}

.course-stat-value {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.6rem; color: var(--white);
  line-height: 1;
  margin-bottom: 0.3rem;
}

.course-stat-label {
  font-size: 0.7rem; color: var(--muted);
  letter-spacing: 0.1em; text-transform: uppercase;
}

/* Section headings */
.course-section {
  margin-bottom: 2.5rem;
}

.course-section h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.6rem; font-weight: 400;
  color: var(--white);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(201,168,76,0.1);
}

.course-section p {
  font-size: 0.95rem; color: var(--text);
  margin-bottom: 1rem; line-height: 1.8;
}

/* Syllabus */
.syllabus {
  list-style: none; padding: 0;
}

.syllabus li {
  display: flex; align-items: baseline; gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 0.92rem; color: var(--text);
}

.syllabus-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.1rem; color: var(--gold);
  min-width: 1.8rem;
}

.syllabus-title { flex: 1; }

.syllabus-duration {
  font-size: 0.75rem; color: var(--muted);
  white-space: nowrap;
}

/* What you'll learn */
.learn-list {
  list-style: none; padding: 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem;
}

.learn-list li {
  font-size: 0.9rem; color: var(--text);
  padding-left: 1.4rem;
  position: relative;
}

.learn-list li::before {
  content: '✓';
  position: absolute; left: 0;
  color: var(--gold); font-size: 0.85rem;
}

/* Pricing box */
.pricing-box {
  margin-top: 2.5rem;
  padding: 2.5rem;
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: 1rem;
  background: rgba(201,168,76,0.04);
  text-align: center;
}

.pricing-box .price {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3rem; color: var(--white);
  font-weight: 300;
  margin-bottom: 0.3rem;
}

.pricing-box .price-note {
  font-size: 0.82rem; color: var(--muted);
  margin-bottom: 1.5rem;
}

.pricing-box .price-cta {
  display: inline-block;
  padding: 0.9rem 2.5rem;
  border-radius: 3rem;
  background: var(--gold); color: var(--ink);
  text-decoration: none;
  font-size: 0.85rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  transition: background 0.2s;
}

.pricing-box .price-cta:hover { background: #e0bc5a; }

.pricing-box .price-cta.coming-soon {
  background: transparent;
  border: 1px solid var(--gold);
  color: var(--gold);
  cursor: default;
}

/* Notify form */
.notify-form {
  display: flex; gap: 0;
  max-width: 420px; margin: 1.2rem auto 0;
  border: 1px solid rgba(201,168,76,0.35);
  border-radius: 3rem; overflow: hidden;
  background: rgba(255,255,255,0.05);
}

.notify-form input[type="email"] {
  flex: 1; padding: 0.85rem 1.3rem;
  background: transparent; border: none;
  color: var(--white); font-size: 0.88rem; outline: none;
  font-family: 'Inter', sans-serif;
}

.notify-form input::placeholder { color: var(--muted); }

.notify-form button {
  padding: 0.85rem 1.5rem;
  background: var(--gold); color: var(--ink);
  border: none; font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  cursor: pointer; transition: background 0.2s; white-space: nowrap;
  border-radius: 0 3rem 3rem 0;
  font-family: 'Inter', sans-serif;
}

.notify-form button:hover { background: #e0bc5a; }

/* FAQ */
.faq-item {
  border-bottom: 1px solid rgba(201,168,76,0.1);
  padding: 1.2rem 0;
}

.faq-q {
  font-size: 0.95rem; color: var(--white);
  font-weight: 500; margin-bottom: 0.5rem;
}

.faq-a {
  font-size: 0.88rem; color: var(--muted);
  line-height: 1.7;
}

/* Instructor mini */
.instructor-mini {
  display: flex; align-items: center; gap: 1.2rem;
  padding: 1.5rem;
  border: 1px solid rgba(201,168,76,0.12);
  border-radius: 0.8rem;
  background: rgba(201,168,76,0.03);
}

.instructor-mini img {
  width: 64px; height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(201,168,76,0.3);
}

.instructor-mini-info h4 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.1rem; color: var(--white);
  font-weight: 400; margin-bottom: 0.2rem;
}

.instructor-mini-info p {
  font-size: 0.78rem; color: var(--muted);
  margin: 0; line-height: 1.5;
}

/* Footer */
.courses-footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid rgba(201,168,76,0.08);
  font-size: 0.72rem; color: var(--muted);
}
.courses-footer a { color: var(--gold); text-decoration: none; }
.courses-footer a:hover { text-decoration: underline; }

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .course-cards { grid-template-columns: 1fr; }
  .learn-list { grid-template-columns: 1fr; }
  .course-stats { gap: 1rem; }
}

@media (max-width: 640px) {
  nav { padding: 1rem 1.5rem; }
  .courses-hero { padding: 7rem 1.2rem 2rem; }
  .course-detail { padding: 6.5rem 1.2rem 3rem; }
  .course-cards { padding: 0 1.2rem 3rem; }
  .nav-links { gap: 1rem; }
  .notify-form { flex-direction: column; border-radius: 1rem; }
  .notify-form input[type="email"] { border-radius: 1rem 1rem 0 0; text-align: center; }
  .notify-form button { border-radius: 0 0 1rem 1rem; padding: 0.9rem; }
}