/* ═══════════════════════════════════════════════════
   SINGLE-COURSE.CSS
   ═══════════════════════════════════════════════════ */

/* COURSE HERO */
.course-hero {
  background: var(--white);
  padding: clamp(5.5rem,10vh,7rem) clamp(2rem,5.5vw,5.5rem) clamp(2rem,4vh,3rem);
}
.course-hero-inner { max-width: 1280px; margin: 0 auto; }
.course-hero-grid {
  display: grid;
  grid-template-columns: 52fr 48fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 36px;
}
.course-h1 {
  font-family: var(--fs);
  font-size: clamp(1.8rem,3.2vw,3.2rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--black);
  margin-bottom: 0;
}
.course-hero-media {
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 21/8;
  background: var(--surf);
  border: 1px solid rgba(13,13,13,.06);
  position: relative;
  flex-shrink: 0;
}
.course-hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center 30%; display: block; }
.course-hero-badge {
  position: absolute;
  bottom: 20px;
  left: 24px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(13,13,13,.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.10);
  padding: 9px 16px;
  border-radius: 9999px;
}
.course-hero-badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--gold);
  animation: ldot-pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes ldot-pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.55;transform:scale(.85)} }
.course-hero-badge-txt { font-size: 12px; font-weight: 600; color: rgba(255,255,255,.78); }

/* COURSE DETAILS SECTION */
.course-details { background: var(--surf); padding: clamp(5rem,10vw,8rem) 0; }
.course-details-wrap { max-width: 1280px; margin: 0 auto; padding: 0 clamp(2rem,5.5vw,5.5rem); }
.course-details-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--goldd);
  margin-bottom: 40px;
  display: block;
}

/* Pricing + schedule 2-col grid */
.course-det-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
  background: rgba(13,13,13,.08);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 3px;
}
.course-pricing {
  background: var(--black);
  padding: clamp(28px,4vw,44px);
}
.course-pricing-lbl {
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
  display: block;
}
.price-toggle { display: flex; gap: 6px; margin-bottom: 22px; }
.price-btn {
  font-size: 12px;
  font-weight: 700;
  font-family: var(--fs);
  padding: 8px 16px;
  border-radius: 9999px;
  border: 1.5px solid rgba(255,255,255,.18);
  background: transparent;
  cursor: pointer;
  color: rgba(255,255,255,.55);
  transition: all .2s;
}
.price-btn.active-native {
  border-color: var(--gold);
  background: rgba(245,197,24,.12);
  color: var(--gold);
}
.price-btn.active-freq {
  border-color: rgba(255,255,255,.30);
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.80);
}
.price-display {
  font-family: var(--fd);
  font-size: clamp(3rem,5.5vw,5rem);
  line-height: .88;
  letter-spacing: .01em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 6px;
}
.price-unit {
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .06em;
  color: rgba(255,255,255,.40);
  margin-bottom: 20px;
}
.price-freq-lbl {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.28);
  margin-bottom: 10px;
  display: block;
}
.freq-toggle { display: flex; gap: 6px; margin-bottom: 20px; }
.price-ctx {
  font-size: 12px;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 20px;
}
.price-divider { height: 1px; background: rgba(255,255,255,.07); margin-bottom: 16px; }
.price-note { font-size: 11px; font-weight: 500; color: rgba(255,255,255,.35); }
.price-individual { margin-top: 14px; }
.price-individual a {
  font-size: 12px;
  color: rgba(255,255,255,.40);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.course-schedule {
  background: var(--white);
  padding: clamp(28px,4vw,44px);
}
.course-schedule-lbl {
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--goldd);
  margin-bottom: 16px;
  display: block;
}
.sched-rows { display: flex; flex-direction: column; gap: 16px; }
.sched-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(13,13,13,.07);
}
.sched-row:last-child { border-bottom: none; }
.sched-key { font-size: 13px; font-weight: 600; color: rgba(13,13,13,.65); }
.sched-val { font-size: 15px; font-weight: 700; color: var(--black); text-align: right; }

/* INCLUDED SECTION */
.course-included {
  background: rgba(13,13,13,.02);
  border-radius: 12px;
  overflow: hidden;
}
.course-included-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 1px;
  background: rgba(13,13,13,.06);
}
.course-include-item {
  background: var(--white);
  padding: 24px 28px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.course-include-icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 14px;
}
.course-include-label { font-size: 13.5px; font-weight: 600; color: var(--black); line-height: 1.4; }
.course-include-sub { font-size: 12px; color: rgba(13,13,13,.55); line-height: 1.4; margin-top: 3px; }

/* LEVEL SYSTEM */
.sec-white { background: var(--white); padding: clamp(5rem,10vw,8rem) 0; }
.sec-dark { background: var(--dark); padding: clamp(5rem,10vw,8rem) 0; }
.sec-surf { background: var(--surf); padding: clamp(5rem,10vw,8rem) 0; }
.sec-wrap { max-width: 1280px; margin: 0 auto; padding: 0 clamp(2rem,5.5vw,5.5rem); }
.ey { font-size: 10px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--gold); margin-bottom: 12px; display: block; }
.ey-dark { color: rgba(13,13,13,.65); }
.sec-h2 { font-family: var(--fd); font-size: clamp(2.5rem,5vw,5rem); line-height: .93; letter-spacing: .02em; text-transform: uppercase; margin-bottom: 24px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; }

.levels {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: rgba(13,13,13,.08);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 36px;
}
.lv {
  display: grid;
  grid-template-columns: 80px 120px 1fr;
  align-items: center;
  gap: 24px;
  padding: 20px 28px;
  background: var(--white);
  transition: background .2s;
}
.lv:hover { background: var(--surf); }
.lv-tag { font-family: var(--fd); font-size: 1.1rem; letter-spacing: .06em; color: var(--gold); }
.lv-name { font-size: 13px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--black); }
.lv-desc { font-size: 13.5px; font-weight: 500; color: rgba(13,13,13,.65); line-height: 1.5; }

/* WHAT YOU STUDY */
.study-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 1px;
  background: rgba(13,13,13,.06);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 40px;
}
.study-item { padding: 28px; background: var(--white); }
.study-label {
  font-family: var(--fd);
  font-size: 1.3rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--black);
  margin-bottom: 8px;
}
.study-desc { font-size: 13.5px; font-weight: 500; color: rgba(13,13,13,.68); line-height: 1.55; }

/* TEACHER CARDS (dark section) */
.teacher-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin-top: 48px; }
.tch {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color .2s var(--e1);
  text-decoration: none;
}
.tch:hover { border-color: rgba(255,255,255,.20); }
.tch-photo { aspect-ratio: 3/4; overflow: hidden; background: rgba(255,255,255,.05); }
.tch-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 15%;
  filter: brightness(.9) saturate(.85);
  transition: transform .5s var(--e1);
}
.tch:hover .tch-photo img { transform: scale(1.04); }
.tch-body { padding: 20px; }
.tch-name {
  font-family: var(--fd);
  font-size: 1.6rem;
  letter-spacing: .03em;
  text-transform: uppercase;
  color: var(--white);
  line-height: 1;
  margin-bottom: 6px;
}
.tch-role { font-size: 10px; font-weight: 700; letter-spacing: .10em; text-transform: uppercase; color: var(--gold); margin-bottom: 8px; }
.tch-cred { font-size: 12.5px; font-weight: 500; color: rgba(255,255,255,.65); line-height: 1.55; }

/* FAQ */
.faq { padding: clamp(5rem,10vw,8rem) 0; background: var(--white); }
.faq-wrap { max-width: 1280px; margin: 0 auto; padding: 0 clamp(2rem,5.5vw,5.5rem); }
.faq-h2 {
  font-family: var(--fd);
  font-size: clamp(2.5rem,5vw,4.5rem);
  line-height: .93;
  letter-spacing: .02em;
  text-transform: uppercase;
  color: var(--black);
  margin-bottom: 48px;
}
.faq-item { border-top: 1px solid rgba(13,13,13,.08); overflow: hidden; }
.faq-item:last-child { border-bottom: 1px solid rgba(13,13,13,.08); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  cursor: pointer;
  user-select: none;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
}
.faq-q-txt { font-size: 16px; font-weight: 700; color: var(--black); line-height: 1.4; }
.faq-icon {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 1.5px solid rgba(13,13,13,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: rgba(13,13,13,.50);
  flex-shrink: 0;
  transition: all .3s var(--e1);
}
.faq-item.open .faq-icon { background: var(--black); color: var(--white); border-color: var(--black); transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .5s var(--e2); }
.faq-item.open .faq-a { max-height: 400px; }
.faq-a-inner { padding: 0 0 24px; font-size: 14.5px; font-weight: 500; line-height: 1.80; color: rgba(13,13,13,.72); max-width: 780px; }

/* CTA SECTION */
.cta-s { background: var(--gold); padding: clamp(5rem,10vw,8rem) 0; }
.cta-s-wrap { max-width: 1280px; margin: 0 auto; padding: 0 clamp(2rem,5.5vw,5.5rem); }
.cta-g { display: grid; grid-template-columns: 1fr 400px; align-items: center; gap: 80px; }
.cta-s .cta-h2 {
  font-family: var(--fd);
  font-size: clamp(3rem,6.5vw,7rem);
  line-height: .9;
  letter-spacing: .01em;
  text-transform: uppercase;
  color: var(--black);
  margin-bottom: 20px;
}
.cta-sub { font-size: 15px; font-weight: 500; line-height: 1.7; color: rgba(13,13,13,.70); max-width: 380px; margin-bottom: 28px; }
.cta-cc { display: flex; gap: 20px; flex-wrap: wrap; }
.cta-c { font-size: 14px; font-weight: 700; color: rgba(13,13,13,.72); display: flex; align-items: center; gap: 6px; }

/* DOUBLE-BEZEL FORM */
.fshell { background: rgba(13,13,13,.07); border: 1px solid rgba(13,13,13,.09); border-radius: 2rem; padding: 6px; }
.fcore {
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: calc(2rem - 6px);
  padding: 32px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.90);
}
.fi {
  width: 100%;
  font-family: var(--fs);
  font-size: 14.5px;
  font-weight: 500;
  color: var(--black);
  background: var(--white);
  border: 1.5px solid rgba(13,13,13,.10);
  border-radius: 10px;
  padding: 13px 16px;
  outline: none;
  margin-bottom: 12px;
  transition: border-color .2s var(--e1), box-shadow .2s;
}
.fi:focus { border-color: var(--black); box-shadow: 0 0 0 3px rgba(13,13,13,.06); }
.fi::placeholder { color: rgba(13,13,13,.65); font-weight: 400; }
.fsub {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--black);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  font-family: var(--fs);
  padding: 15px 15px 15px 24px;
  border-radius: 9999px;
  border: none;
  cursor: pointer;
  transition: background .2s var(--e1), transform .15s;
}
.fsub:hover { background: #222; transform: translateY(-1px); }
.fsub-i {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: transform .2s var(--e1);
}
.fsub:hover .fsub-i { transform: translate(2px,-2px); }
.fmicro { margin-top: 12px; font-size: 11px; font-weight: 500; color: rgba(13,13,13,.65); text-align: center; }

/* RESPONSIVE */
@media (max-width: 1023px) {
  .course-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .course-det-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .teacher-row { grid-template-columns: 1fr 1fr; gap: 20px; }
  .cta-g { grid-template-columns: 1fr; gap: 36px; }
  .study-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .course-hero-grid { grid-template-columns: 1fr; }
  .study-grid { grid-template-columns: 1fr; }
  .teacher-row { grid-template-columns: 1fr 1fr; }
  .lv { grid-template-columns: 60px 1fr; gap: 12px; }
  .lv-name { display: none; }
  .cta-g { grid-template-columns: 1fr; gap: 28px; }
  .course-included-grid { grid-template-columns: 1fr 1fr; }
}