/* Final lecturer art direction — 2026-09-19
   Scientific editorial hero + explicit teaching philosophy.
   Keep the page factual: visual energy comes from composition, not slogans. */

:root{
  --edu-final-navy:#12365f;
  --edu-final-ink:#202b34;
  --edu-final-muted:#68717a;
  --edu-final-gold:#a8833c;
  --edu-final-rule:rgba(18,54,95,.13);
  --edu-final-paper:#f6f3ed;
}

/* ---------------- Hero ---------------- */
.hero{
  position:relative!important;
  display:grid!important;
  grid-template-columns:minmax(0,1fr) minmax(330px,400px)!important;
  grid-template-areas:
    "lead visual"
    "detail visual"!important;
  column-gap:70px!important;
  row-gap:26px!important;
  align-items:start!important;
  align-content:start!important;
  min-height:0!important;
  padding:76px 0 72px!important;
  isolation:isolate;
  overflow:visible;
}
.hero::before{
  content:"PHYSICS"!important;
  position:absolute!important;
  z-index:-2!important;
  top:42px!important;
  right:-26px!important;
  bottom:auto!important;
  left:auto!important;
  width:auto!important;
  height:auto!important;
  background:none!important;
  color:transparent!important;
  -webkit-text-stroke:1px rgba(18,54,95,.085);
  font-family:Arial,Helvetica,sans-serif!important;
  font-size:clamp(92px,13.2vw,176px)!important;
  font-weight:800!important;
  line-height:.82!important;
  letter-spacing:-.075em!important;
  white-space:nowrap;
  opacity:1!important;
  pointer-events:none;
}
.hero::after{
  content:""!important;
  position:absolute!important;
  z-index:-1!important;
  top:134px!important;
  right:175px!important;
  width:285px!important;
  height:118px!important;
  background-repeat:no-repeat!important;
  background-position:center!important;
  background-size:contain!important;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 285 118'%3E%3Cpath d='M2 63 C20 63 20 39 38 39 S56 87 74 87 92 24 110 24 128 97 146 97 164 48 182 48 200 71 218 71 236 56 254 56 272 62 283 62' fill='none' stroke='%2312365f' stroke-opacity='.28' stroke-width='1.5'/%3E%3Ccircle cx='110' cy='24' r='3' fill='%23a8833c' fill-opacity='.72'/%3E%3Ccircle cx='218' cy='71' r='2.5' fill='%2312365f' fill-opacity='.42'/%3E%3C/svg%3E")!important;
  opacity:1!important;
  pointer-events:none;
}
.hero-lead{grid-area:lead!important;position:relative;z-index:2;max-width:780px}
.hero-visual{grid-area:visual!important;position:relative!important;z-index:2;align-self:center!important;width:100%!important;margin:0!important;padding:14px 0 0!important}
.hero-detail{grid-area:detail!important;position:relative;z-index:2;margin:0!important;max-width:760px}

.hero-role{
  display:flex!important;
  align-items:center!important;
  gap:10px!important;
  margin:0 0 13px!important;
  font-size:11px!important;
  letter-spacing:.08em!important;
}
.hero-role::before{
  content:"01";
  color:var(--edu-final-gold);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:9px;
  letter-spacing:.08em;
}
.hero-name{
  margin:0!important;
  color:#102f53!important;
  font-size:clamp(70px,7.2vw,104px)!important;
  line-height:.88!important;
  letter-spacing:-.065em!important;
  font-weight:700!important;
}
.hero-focus{
  margin:18px 0 0!important;
  color:#34495b!important;
  font-size:13.5px!important;
  line-height:1.55!important;
  letter-spacing:.015em!important;
}
.hero-route{
  display:flex;
  align-items:center;
  gap:10px;
  width:max-content;
  max-width:100%;
  margin-top:11px;
  color:#777269;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:9.5px;
  line-height:1.4;
  letter-spacing:.08em;
  white-space:nowrap;
}
.hero-route i{
  color:var(--edu-final-gold);
  font-style:normal;
}
.hero-thesis{
  display:inline-block!important;
  max-width:none!important;
  margin:19px 0 0!important;
  padding-top:10px!important;
  border-top:1px solid var(--edu-final-rule)!important;
  color:#29445f!important;
  font-family:inherit!important;
  font-size:13px!important;
  line-height:1.4!important;
  font-weight:650!important;
  letter-spacing:.06em!important;
}
.hero-intro{
  max-width:730px!important;
  margin:10px 0 0!important;
  color:#525c64!important;
  font-size:13.5px!important;
  line-height:1.78!important;
}

.portrait-stage{
  position:relative!important;
  width:min(100%,338px)!important;
  margin:0 0 0 auto!important;
  padding:0!important;
}
.portrait-stage::before{
  content:"";
  position:absolute;
  z-index:-1;
  inset:-26px -30px -22px -38px;
  border:1px solid rgba(18,54,95,.13);
  border-radius:50%;
  transform:rotate(-9deg);
}
.portrait-stage::after{
  content:"";
  position:absolute;
  z-index:4;
  width:9px;
  height:9px;
  right:-22px;
  top:28%;
  border-radius:50%;
  background:var(--edu-final-gold);
  box-shadow:0 0 0 7px var(--edu-final-paper);
}
.portrait-frame{
  position:relative!important;
  overflow:hidden!important;
  border-radius:2px!important;
  box-shadow:0 24px 54px rgba(19,43,70,.16)!important;
}
.portrait-frame::after{
  content:"";
  position:absolute;
  inset:0;
  border:1px solid rgba(255,255,255,.42);
  pointer-events:none;
}
.hero-visual figcaption{
  position:relative;
  z-index:5;
  width:min(100%,338px);
  margin:-1px 0 0 auto!important;
  padding:0!important;
  background:transparent!important;
  border:0!important;
  backdrop-filter:none!important;
  -webkit-backdrop-filter:none!important;
}
.hero-proof{
  display:grid!important;
  grid-template-columns:1fr 1fr!important;
  margin:0!important;
  gap:0!important;
  border:0!important;
  background:#17191d!important;
  color:#fff!important;
  box-shadow:0 14px 30px rgba(16,28,42,.14);
}
.proof-item{
  min-height:92px!important;
  padding:15px 16px 14px!important;
  display:flex!important;
  flex-direction:column!important;
  justify-content:center!important;
}
.proof-item+.proof-item{
  padding-left:16px!important;
  border-left:1px solid rgba(255,255,255,.16)!important;
}
.proof-item small{
  display:block!important;
  color:#c9c7c3!important;
  font-size:10.5px!important;
  line-height:1.45!important;
  letter-spacing:.01em!important;
}
.proof-item strong{
  display:block!important;
  margin-top:4px!important;
  color:#fff!important;
  font-family:var(--display,Arial,sans-serif)!important;
  font-size:40px!important;
  line-height:.95!important;
  font-weight:700!important;
  letter-spacing:-.045em!important;
}
.proof-item span{
  display:block!important;
  margin-top:4px!important;
  color:#c9c7c3!important;
  font-size:10.5px!important;
  line-height:1.4!important;
}
.hero-caption{
  margin:10px 0 0!important;
  color:#6b6f70!important;
  font-size:10.5px!important;
  line-height:1.58!important;
}

.hero-highlights{
  display:grid!important;
  grid-template-columns:repeat(3,minmax(0,1fr))!important;
  margin:0!important;
  border-top:1px solid var(--edu-final-rule)!important;
  border-bottom:1px solid var(--edu-final-rule)!important;
}
.hero-highlight{
  min-height:0!important;
  padding:11px 15px 11px 0!important;
}
.hero-highlight+.hero-highlight{
  padding-left:15px!important;
  border-left:1px solid var(--edu-final-rule)!important;
}
.hero-highlight small{
  color:#8b8174!important;
  font-size:9.5px!important;
  letter-spacing:.03em!important;
}
.hero-highlight strong{
  margin-top:3px!important;
  color:#354b5e!important;
  font-size:11.6px!important;
  line-height:1.5!important;
  font-weight:620!important;
}
.hero-education{
  margin-top:12px!important;
}
.hero-actions{
  margin-top:13px!important;
}

/* ---------------- Teaching philosophy ---------------- */
.teaching-section{
  position:relative;
}
.teaching-philosophy{
  display:grid;
  grid-template-columns:minmax(220px,.72fr) minmax(0,1.28fr);
  gap:52px;
  margin-top:28px;
  padding:27px 0 26px;
  border-top:1px solid var(--edu-final-rule);
  border-bottom:1px solid var(--edu-final-rule);
}
.teaching-philosophy-title .kicker{
  margin-bottom:9px!important;
}
.teaching-philosophy-lead{
  max-width:360px;
  margin:0;
  color:#153b66;
  font-family:var(--serif,serif);
  font-size:clamp(25px,2.15vw,32px);
  line-height:1.32;
  font-weight:520;
  letter-spacing:-.025em;
}
.teaching-philosophy-copy{
  align-self:end;
  max-width:720px;
}
.teaching-philosophy-copy p{
  margin:0;
  color:#4e5961;
  font-size:13.5px;
  line-height:1.86;
}
.teaching-philosophy-copy p+p{
  margin-top:8px;
}

.principle-grid-specific{
  margin-top:21px!important;
  border-top:0!important;
}
.principle-grid-specific .principle{
  background:transparent!important;
}
.principle-grid-specific .principle:nth-child(2){
  background:transparent!important;
}
.principle-grid-specific .principle h3{
  color:#234563!important;
}
.principle-grid-specific .principle p{
  color:#62686d!important;
}

/* Make the course poster important without pretending a low-res source is high-res. */
.featured-course-poster-button img{
  image-rendering:auto!important;
}
.featured-course-poster-hint{
  color:#77736d!important;
}

/* ---------------- Responsive ---------------- */
@media(max-width:900px){
  .hero{
    grid-template-columns:1fr 300px!important;
    grid-template-areas:
      "lead visual"
      "detail detail"!important;
    column-gap:36px!important;
    row-gap:24px!important;
    padding:52px 0 50px!important;
  }
  .hero::before{
    top:54px!important;
    right:-10px!important;
    font-size:112px!important;
  }
  .hero::after{
    right:82px!important;
    top:118px!important;
    width:230px!important;
  }
  .hero-name{font-size:70px!important}
  .portrait-stage{width:270px!important}
  .hero-visual figcaption{width:100%!important;margin:-20px 0 0!important}
  .teaching-philosophy{
    grid-template-columns:1fr!important;
    gap:14px!important;
  }
  .teaching-philosophy-copy{max-width:760px}
}

@media(max-width:767px){
  .hero{
    grid-template-columns:1fr!important;
    grid-template-areas:
      "lead"
      "visual"
      "detail"!important;
    gap:18px!important;
    padding:29px 0 26px!important;
    overflow:hidden!important;
  }
  .hero::before{
    top:60px!important;
    right:-22px!important;
    font-size:92px!important;
    -webkit-text-stroke-color:rgba(18,54,95,.07);
  }
  .hero::after{
    top:136px!important;
    right:-30px!important;
    width:205px!important;
    opacity:.8!important;
  }
  .hero-role{margin-bottom:9px!important}
  .hero-name{
    font-size:clamp(51px,15vw,64px)!important;
    line-height:.9!important;
  }
  .hero-focus{
    margin-top:12px!important;
    font-size:12.2px!important;
  }
  .hero-route{
    gap:7px!important;
    margin-top:8px!important;
    font-size:8.3px!important;
    letter-spacing:.055em!important;
  }
  .hero-thesis{
    margin-top:13px!important;
    padding-top:8px!important;
    font-size:11.5px!important;
    letter-spacing:.045em!important;
  }
  .hero-intro{
    margin-top:8px!important;
    font-size:12.2px!important;
    line-height:1.68!important;
  }
  .hero-visual{
    width:min(100%,390px)!important;
    margin:0 auto!important;
    padding-top:5px!important;
  }
  .portrait-stage{
    width:min(62vw,230px)!important;
    margin:0 auto!important;
  }
  .portrait-stage::before{
    inset:-17px -22px -16px -24px!important;
  }
  .portrait-stage::after{
    width:7px!important;
    height:7px!important;
    right:-15px!important;
    box-shadow:0 0 0 5px var(--edu-final-paper)!important;
  }
  .hero-visual figcaption{
    width:min(100%,286px)!important;
    margin:-1px auto 0!important;
    padding:0!important;
  }
  .hero-proof{
    display:grid!important;
    grid-template-columns:1fr 1fr!important;
    background:#17191d!important;
    box-shadow:0 11px 24px rgba(16,28,42,.13)!important;
  }
  .proof-item{
    min-height:72px!important;
    padding:11px 12px 10px!important;
  }
  .proof-item+.proof-item{
    padding-left:12px!important;
  }
  .proof-item small,.proof-item span{
    font-size:9px!important;
  }
  .proof-item strong{
    margin-top:3px!important;
    font-size:30px!important;
  }
  .hero-caption{
    margin-top:8px!important;
    padding:0 2px!important;
    font-size:9.4px!important;
    line-height:1.52!important;
  }
  .hero-highlights{
    grid-template-columns:1fr!important;
  }
  .hero-highlight{
    display:grid!important;
    grid-template-columns:95px minmax(0,1fr)!important;
    gap:10px!important;
    padding:8px 0!important;
  }
  .hero-highlight+.hero-highlight{
    padding-left:0!important;
    border-left:0!important;
    border-top:1px solid rgba(18,54,95,.075)!important;
  }

  .teaching-philosophy{
    grid-template-columns:1fr!important;
    gap:11px!important;
    margin-top:16px!important;
    padding:17px 0 16px!important;
  }
  .teaching-philosophy-lead{
    max-width:320px!important;
    font-size:21px!important;
    line-height:1.34!important;
  }
  .teaching-philosophy-copy p{
    font-size:11.7px!important;
    line-height:1.68!important;
  }
  .teaching-philosophy-copy p+p{
    margin-top:6px!important;
  }
  .principle-grid-specific{
    margin-top:13px!important;
  }
}

@media(prefers-reduced-motion:no-preference){
  .portrait-stage::before{
    animation:eduOrbit 14s ease-in-out infinite alternate;
  }
  .hero::after{
    animation:eduWave 8s ease-in-out infinite alternate;
  }
}
@keyframes eduOrbit{
  from{transform:rotate(-9deg) scale(1)}
  to{transform:rotate(-4deg) scale(1.018)}
}
@keyframes eduWave{
  from{transform:translateX(0)}
  to{transform:translateX(10px)}
}