/* =====================================================
   DNDC — Course detail page styles
   ===================================================== */

.course-body { background: var(--bg); }

/* ---------- Course hero ---------- */
.c-hero {
  position: relative;
  min-height: 100vh;
  padding: 140px clamp(24px, 4vw, 64px) 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  isolation: isolate;
  background: var(--bg);
}
.c-hero::before {
  content: '';
  position: absolute;
  top: 20%; left: -10%;
  width: 50%; height: 50%;
  background: radial-gradient(circle, rgba(226, 103, 67, 0.08), transparent 60%);
  z-index: 0;
  pointer-events: none;
  filter: blur(40px);
}
.c-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  column-gap: clamp(40px, 6vw, 96px);
  align-items: center;
  padding: 32px 0 56px;
}
.c-hero__left { display: flex; flex-direction: column; }
.c-hero__meta {
  display: flex; gap: 16px; align-items: center;
  margin-bottom: 32px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  flex-wrap: wrap;
}
.c-hero__tag {
  display: inline-block;
  padding: 7px 14px;
  background: var(--orange);
  color: var(--bg);
  border-radius: 999px;
  font-weight: 500;
}
.c-hero__cat { color: var(--beige); }
.c-hero__title {
  font-family: var(--font-serif);
  font-size: clamp(56px, 8.4vw, 132px);
  font-weight: 500;
  line-height: 0.96;
  letter-spacing: -0.035em;
}
.c-hero__title .line { display: block; overflow: hidden; padding: 0.04em 0; }
.c-hero__title .italic { font-style: italic; color: var(--orange); font-weight: 400; padding-left: 0.1em; }
.c-hero__sub {
  margin-top: 32px;
  max-width: 500px;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.65;
  color: var(--cream-2);
}
.c-hero__ctas {
  margin-top: 40px;
  display: flex; gap: 16px;
  flex-wrap: wrap;
}

/* RIGHT — art panel + highlights card */
.c-hero__right {
  position: relative;
  display: grid;
  grid-template-rows: minmax(220px, 1fr) auto;
  gap: 20px;
  align-self: stretch;
  min-height: 540px;
}
.c-hero__canvas {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 220px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.c-hero__canvas::after {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at top, rgba(14, 12, 10, 0.55) 0%, transparent 55%),
    linear-gradient(180deg, transparent 50%, rgba(14, 12, 10, 0.5) 100%);
  pointer-events: none;
}
.c-hero__card {
  padding: 28px;
  background: rgba(241, 234, 216, 0.03);
  border: 1px solid var(--line);
  border-radius: 8px;
  backdrop-filter: blur(8px);
  display: flex; flex-direction: column; gap: 20px;
  position: relative;
  overflow: hidden;
}
.c-hero__card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 60px; height: 1px;
  background: var(--orange);
}
.c-hero__card-top {
  display: flex; justify-content: space-between; align-items: center;
}
.c-hero__card-eyebrow {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--beige);
}
.c-hero__card-pill {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  padding: 4px 10px;
  border: 1px solid var(--orange);
  border-radius: 999px;
}
.c-hero__highlights {
  display: flex; flex-direction: column;
  gap: 14px;
}
.c-hero__highlights li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 14px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.5;
  color: var(--cream);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.c-hero__highlights li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.c-hero__highlights li span {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--orange);
  letter-spacing: 0.04em;
}
.c-hero__card-foot {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.c-hero__card-foot div { display: flex; flex-direction: column; gap: 4px; }
.c-hero__card-foot .k {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--beige);
}
.c-hero__card-foot .v {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--cream);
}

/* STATS strip across bottom */
.c-hero__stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  padding: 28px 0 0;
  border-top: 1px solid var(--line);
}
.c-hero__stats li { display: flex; flex-direction: column; gap: 8px; }
.c-hero__stats .k {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--beige);
}
.c-hero__stats .v {
  font-family: var(--font-serif);
  font-size: clamp(18px, 1.6vw, 22px);
  font-weight: 500;
  letter-spacing: -0.01em;
}
@media (max-width: 960px) {
  .c-hero__inner {
    grid-template-columns: 1fr;
    row-gap: 40px;
  }
  .c-hero__right { min-height: auto; }
  .c-hero__canvas { min-height: 280px; }
  .c-hero__stats { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}
@media (max-width: 600px) {
  .c-hero__stats { grid-template-columns: 1fr 1fr; }
}

/* ---------- Tech ---------- */
.tech { background: var(--bg); padding-bottom: 100px; }
.tech__grid {
  margin: 40px clamp(20px, 4vw, 60px) 0;
  display: flex; flex-wrap: wrap;
  gap: 12px;
}
.tech__chip {
  padding: 14px 24px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--cream);
  transition: all 0.4s var(--ease);
  background: rgba(241, 234, 216, 0.02);
}
.tech__chip:hover {
  background: var(--orange);
  color: var(--bg);
  border-color: var(--orange);
  transform: translateY(-4px);
}

/* ---------- Syllabus timeline ---------- */
.syllabus { background: var(--bg); padding-bottom: 140px; }
.timeline {
  position: relative;
  margin: 60px clamp(20px, 4vw, 60px) 0;
  padding-left: 60px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 8px; top: 12px; bottom: 12px;
  width: 1px;
  background: var(--line);
}
.timeline::after {
  content: '';
  position: absolute;
  left: 8px; top: 12px;
  width: 1px;
  height: var(--timeline-progress, 0%);
  background: var(--orange);
  transition: height 0.2s linear;
}
.t-step {
  position: relative;
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}
.t-step:last-child { border-bottom: none; }
.t-step__dot {
  position: absolute;
  left: -60px;
  top: 50px;
  width: 15px; height: 15px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--beige);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.t-step.is-active .t-step__dot {
  background: var(--orange);
  border-color: var(--orange);
  transform: scale(1.2);
  box-shadow: 0 0 24px rgba(226, 103, 67, 0.4);
}
.t-step__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 40px;
  align-items: start;
}
.t-step__head {
  display: flex; flex-direction: column;
  gap: 8px;
  padding-right: 16px;
}
.t-step__month {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--cream);
}
.t-step__hours {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--beige);
}
.t-step__body h3 {
  grid-column: 2;
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.6vw, 34px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 12px;
}
.t-step__body p {
  grid-column: 2;
  font-size: 14px;
  color: var(--cream-2);
  max-width: 580px;
  line-height: 1.65;
  margin-bottom: 20px;
}
.t-step__topics {
  grid-column: 2;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 28px;
  margin-bottom: 24px;
}
.t-step__topics li {
  position: relative;
  padding-left: 18px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--cream);
}
.t-step__topics li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 8px; height: 1px;
  background: var(--orange);
}
.t-step__foot {
  grid-column: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.t-step__foot > div {
  display: flex; flex-direction: column;
  gap: 4px;
}
.t-step__foot .k {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--beige);
}
.t-step__foot .v {
  font-size: 13px;
  color: var(--cream);
  line-height: 1.45;
}
@media (max-width: 860px) {
  .timeline { padding-left: 32px; }
  .t-step__dot { left: -32px; top: 44px; }
  .t-step__body {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .t-step__body h3,
  .t-step__body p,
  .t-step__topics,
  .t-step__foot { grid-column: 1; }
  .t-step__topics { grid-template-columns: 1fr; }
  .t-step__foot { grid-template-columns: 1fr; }
}

/* ---------- Stacked tiers (data-driven syllabus) ---------- */
.tiers {
  margin: 56px clamp(20px, 4vw, 60px) 0;
  display: flex;
  flex-direction: column;
  gap: clamp(20px, 2.4vw, 36px);
}
.tier {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--bg-2);
  padding: clamp(28px, 3vw, 44px);
  transition: border-color 0.5s var(--ease);
}
.tier:hover { border-color: var(--line-strong); }
.tier__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  padding-bottom: 28px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--line);
}
.tier__index {
  display: block;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--beige);
  margin-bottom: 12px;
}
.tier__name {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.tier__blurb {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--cream-2);
  max-width: 560px;
}
.tier__badges {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  flex: 0 0 auto;
}
.tier__duration {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--cream);
  white-space: nowrap;
}
.tier__level {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
  border: 1px solid rgba(226, 103, 67, 0.35);
  border-radius: 999px;
  padding: 5px 12px;
  white-space: nowrap;
}
.tier__modules {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px 36px;
}
.tier__module {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.tier__module-num {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--orange);
  padding-top: 2px;
  flex: 0 0 auto;
}
.tier__module-body h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--cream);
  margin: 0 0 5px;
  letter-spacing: -0.005em;
}
.tier__module-body p {
  font-size: 13px;
  line-height: 1.55;
  color: var(--cream-2);
  margin: 0;
}
@media (max-width: 860px) {
  .tier__head { flex-direction: column; gap: 18px; }
  .tier__badges { flex-direction: row; align-items: center; }
  .tier__modules { grid-template-columns: 1fr; gap: 18px; }
}

/* ---------- Projects ---------- */
.projects { background: var(--bg); padding-bottom: 140px; }
.projects__grid {
  margin: 60px clamp(20px, 4vw, 60px) 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.p-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.6s var(--ease-out), border-color 0.5s var(--ease);
  background: var(--bg-2);
}
.p-card:hover { transform: translateY(-8px); border-color: var(--orange); }
.p-card__visual {
  aspect-ratio: 16 / 10;
  background:
    radial-gradient(circle at 30% 30%, rgba(241, 234, 216, 0.15), transparent 60%),
    linear-gradient(135deg, var(--bg-3) 0%, transparent 100%);
  position: relative;
  overflow: hidden;
}
.p-card__visual::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 70% 70%, var(--p-shade, var(--orange)), transparent 60%);
  opacity: 0.5;
  mix-blend-mode: screen;
}
.p-card__visual::after {
  content: '';
  position: absolute; inset: 0;
  background:
    repeating-linear-gradient(
      45deg,
      transparent 0,
      transparent 18px,
      rgba(241, 234, 216, 0.03) 18px,
      rgba(241, 234, 216, 0.03) 19px
    );
}
.p-card__meta {
  padding: 32px 28px;
  display: flex; flex-direction: column; gap: 12px;
}
.p-card__meta > span {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--orange);
}
.p-card__meta h3 {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.2vw, 32px);
  font-weight: 500;
  letter-spacing: -0.01em;
}
.p-card__meta p {
  color: var(--cream-2);
  font-size: 15px;
}
@media (max-width: 760px) {
  .projects__grid { grid-template-columns: 1fr; }
}

/* ---------- Career ---------- */
.career { background: var(--bg); padding-bottom: 140px; overflow: hidden; }
.career__rail {
  margin: 60px clamp(20px, 4vw, 60px) 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.career__step {
  padding: 40px 24px;
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 16px;
  transition: background 0.4s var(--ease);
}
.career__step:last-child { border-right: none; }
.career__step:hover { background: rgba(217, 119, 66, 0.05); }
.career__num {
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--orange);
}
.career__step h3 {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 500;
  letter-spacing: -0.01em;
}
.career__step p { font-size: 14px; color: var(--cream-2); line-height: 1.5; }
@media (max-width: 860px) {
  .career__rail { grid-template-columns: repeat(2, 1fr); }
  .career__step { border-bottom: 1px solid var(--line); }
}

/* ---------- Mentor ---------- */
.mentor { background: var(--bg); padding-bottom: 140px; }
.mentor__team {
  margin: 48px clamp(20px, 4vw, 60px) 0;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  position: relative;
}
.mentor__team img {
  display: block;
  width: 100%;
  max-height: 460px;
  object-fit: cover;
  object-position: center 35%;
}
.mentor__team figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 40px 28px 22px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cream);
  background: linear-gradient(transparent, rgba(14, 12, 10, 0.85));
}
.mentor__grid {
  margin: 24px clamp(20px, 4vw, 60px) 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.mentor__card {
  padding: 36px 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-2);
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease);
}
.mentor__card:hover { transform: translateY(-8px); border-color: var(--orange); }
.mentor__photo {
  width: 80px; height: 80px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--mentor-tone, var(--orange));
  color: var(--bg);
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 500;
  margin-bottom: 24px;
  overflow: hidden;
}
.mentor__photo--img { background: var(--bg-3); }
.mentor__photo--img img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
}
.mentor__card h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.mentor__card > span {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--beige);
  margin: 4px 0 16px;
}
.mentor__card p { font-size: 15px; color: var(--cream-2); }
@media (max-width: 1100px) {
  .mentor__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .mentor__grid { grid-template-columns: 1fr; }
}

/* ---------- FAQ ---------- */
.faq { background: var(--bg); padding-bottom: 160px; }
.faq__list {
  margin: 60px clamp(20px, 4vw, 60px) 0;
  border-top: 1px solid var(--line);
}
.faq__item {
  border-bottom: 1px solid var(--line);
  padding: 4px 0;
}
.faq__item summary {
  list-style: none;
  padding: 28px 8px;
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 500;
  letter-spacing: -0.01em;
  cursor: none;
  transition: color 0.4s var(--ease);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--orange); }
.faq__plus {
  font-size: 28px;
  color: var(--beige);
  transition: transform 0.4s var(--ease), color 0.4s var(--ease);
  font-weight: 300;
}
.faq__item[open] .faq__plus { transform: rotate(45deg); color: var(--orange); }
.faq__item p {
  padding: 0 8px 32px;
  font-size: 16px;
  color: var(--cream-2);
  max-width: 720px;
  line-height: 1.6;
}