/* ============================================================
   4Prep Academy — landing page
   ============================================================ */

:root{
  --teal:#53dfc4;
  --teal-deep:#0d6e5c;   /* AA on paper: 5.67:1 */
  --teal-ink:#0d3b33;
  --ink:#10140f;
  --ink-2:#2b322c;
  --muted:#566159;       /* AA on paper: 5.93:1 */
  --paper:#f7f5f0;
  --paper-2:#efece4;
  --white:#fff;
  --line:rgba(16,20,15,.12);
  --dark:#0d1411;

  --ease:cubic-bezier(.22,1,.36,1);      /* settle */
  --ease-soft:cubic-bezier(.4,0,.2,1);   /* ui */
  --t-fast:.28s;
  --t-mid:.5s;
  --t-slow:.9s;
  --max:1180px;
  --pad:clamp(20px,5vw,64px);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter',system-ui,sans-serif;
  font-size:17px;
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
em{font-style:italic}

/* ---------- texture + progress ---------- */
.grain{
  position:fixed;inset:0;z-index:9999;pointer-events:none;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
}
.scroll-bar{position:fixed;top:0;left:0;right:0;height:2px;z-index:999;background:transparent}
.scroll-bar span{display:block;height:100%;width:0;background:var(--teal);transition:width .1s linear}

/* ---------- orbs ---------- */
.orb{position:absolute;border-radius:50%;pointer-events:none;z-index:0;filter:blur(70px);will-change:transform}
.orb--a{width:46vw;height:46vw;max-width:620px;max-height:620px;top:-14%;right:-12%;
  background:radial-gradient(circle,rgba(83,223,196,.5),rgba(83,223,196,0) 70%)}
.orb--b{width:34vw;height:34vw;max-width:440px;max-height:440px;bottom:-8%;left:-12%;
  background:radial-gradient(circle,rgba(83,223,196,.3),rgba(83,223,196,0) 70%)}
.orb--c{width:40vw;height:40vw;max-width:520px;max-height:520px;top:6%;left:-14%;
  background:radial-gradient(circle,rgba(83,223,196,.22),rgba(83,223,196,0) 70%)}
.orb--d{width:50vw;height:50vw;max-width:640px;max-height:640px;top:-20%;left:50%;transform:translateX(-50%);
  background:radial-gradient(circle,rgba(83,223,196,.28),rgba(83,223,196,0) 70%)}

/* ---------- buttons ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;gap:.6em;
  padding:16px 30px;border:none;border-radius:999px;cursor:pointer;
  background:var(--ink);color:var(--paper);
  font:600 15px/1 'Inter',sans-serif;
  overflow:hidden;isolation:isolate;
  transition:transform .4s var(--ease),color .35s ease,box-shadow .4s var(--ease);
}
.btn::before{
  content:'';position:absolute;inset:0;z-index:-1;background:var(--teal);
  transform:translateY(101%);border-radius:inherit;transition:transform .45s var(--ease);
}
.btn:hover{transform:translateY(-3px);color:var(--ink);box-shadow:0 14px 30px -12px rgba(16,20,15,.4)}
.btn:hover::before{transform:translateY(0)}
.btn--sm{padding:11px 20px;font-size:14px}
.btn--ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn--ghost:hover{color:var(--ink);border-color:transparent}
.btn--light{background:var(--teal);color:var(--teal-ink)}
.btn--light::before{background:var(--white)}
.btn--light:hover{color:var(--teal-ink)}
.btn--full{width:100%;justify-content:center;margin-top:8px}
.play-dot{width:9px;height:9px;border-radius:50%;background:var(--teal-deep);
  box-shadow:0 0 0 0 rgba(83,223,196,.7);animation:ring 2.2s infinite}
@keyframes ring{70%{box-shadow:0 0 0 11px rgba(83,223,196,0)}100%{box-shadow:0 0 0 0 rgba(83,223,196,0)}}

/* ---------- nav ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:500;
  display:flex;align-items:center;gap:24px;padding:18px var(--pad);
  transition:background .4s var(--ease),box-shadow .4s var(--ease),padding .4s var(--ease);
}
.nav.is-stuck{
  background:rgba(247,245,240,.94);backdrop-filter:blur(14px) saturate(1.2);
  box-shadow:0 1px 0 var(--line),0 10px 30px -22px rgba(16,20,15,.5);
  padding-top:12px;padding-bottom:12px;
}
.nav__brand{display:flex;align-items:center;gap:10px;margin-right:auto}
.nav__logo{width:34px;height:34px;transition:transform .6s var(--ease)}
.nav__brand:hover .nav__logo{transform:rotate(-14deg) scale(1.08)}
.nav__name{font:700 18px/1 'Fraunces',serif;letter-spacing:-.01em;white-space:nowrap}
.nav__name em{font-weight:400;color:var(--muted)}
.nav__links{display:flex;gap:26px;font-size:15px;font-weight:500}
.nav__links a{position:relative;padding:4px 0;color:var(--ink-2)}
.nav__links a::after{
  content:'';position:absolute;left:0;bottom:0;height:2px;width:100%;background:var(--teal);
  transform:scaleX(0);transform-origin:right;transition:transform .4s var(--ease);
}
.nav__links a:hover::after{transform:scaleX(1);transform-origin:left}

.nav__burger{display:none;width:40px;height:40px;background:none;border:none;cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:6px}
.nav__burger span{display:block;width:22px;height:2px;background:var(--ink);transition:transform .4s var(--ease)}
.nav__burger.is-open span:nth-child(1){transform:translateY(4px) rotate(45deg)}
.nav__burger.is-open span:nth-child(2){transform:translateY(-4px) rotate(-45deg)}

.drawer{
  position:fixed;inset:0;z-index:450;background:var(--paper);
  display:flex;flex-direction:column;justify-content:center;gap:4px;padding:0 var(--pad);
  clip-path:circle(0% at 100% 0);transition:clip-path .7s var(--ease);
}
.drawer.is-open{clip-path:circle(150% at 100% 0)}
.drawer a{font:600 clamp(26px,6.4vw,42px)/1.35 'Fraunces',serif;opacity:0;transform:translateY(16px);
  transition:opacity .5s var(--ease),transform .5s var(--ease),color .3s}
.drawer.is-open a{opacity:1;transform:none}
.drawer.is-open a:nth-child(1){transition-delay:.18s}
.drawer.is-open a:nth-child(2){transition-delay:.24s}
.drawer.is-open a:nth-child(3){transition-delay:.3s}
.drawer.is-open a:nth-child(4){transition-delay:.36s}
.drawer.is-open a:nth-child(5){transition-delay:.42s}
.drawer.is-open a:nth-child(6){transition-delay:.48s}
.drawer a:hover{color:var(--teal-deep)}
.drawer__cta{color:var(--teal-deep)}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;
  padding:150px var(--pad) 90px;overflow:hidden}
.hero__grid{position:relative;z-index:2;width:100%;max-width:var(--max);margin:0 auto;
  display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(30px,5vw,70px);align-items:center}

.eyebrow{font:500 12px/1 'JetBrains Mono',monospace;letter-spacing:.18em;
  text-transform:uppercase;color:var(--teal-deep);margin-bottom:24px}
.eyebrow--light{color:var(--teal)}

.hero__title{font:600 clamp(46px,7.4vw,92px)/1 'Fraunces',serif;letter-spacing:-.035em;margin-bottom:26px}
.hero__title em{color:var(--teal-deep);font-style:normal;position:relative;white-space:nowrap}
.hero__title em::after{
  content:'';position:absolute;left:0;right:0;bottom:.06em;height:.09em;background:var(--teal);
  opacity:.4;transform:scaleX(0);transform-origin:left;animation:underline 1s var(--ease) 1.3s forwards;
}
@keyframes underline{to{transform:scaleX(1)}}
.line{display:block;overflow:hidden;padding-bottom:.04em}
.line>span{display:block;transform:translateY(105%);animation:riseIn 1s var(--ease) forwards}
.line:nth-child(1)>span{animation-delay:.15s}
.line:nth-child(2)>span{animation-delay:.3s}
@keyframes riseIn{to{transform:translateY(0)}}

.hero__lead{font-size:clamp(16.5px,1.8vw,20px);color:var(--ink-2);max-width:48ch;margin-bottom:34px}
.hero__cta{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:34px}
.hero__chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none}
.hero__chips li{font:500 13px/1 'Inter',sans-serif;padding:9px 14px;border-radius:999px;
  background:rgba(83,223,196,.16);color:var(--teal-ink)}

/* hero collage */
.hero__media{position:relative;aspect-ratio:1/1.02;min-height:340px}
.shot{position:absolute;overflow:hidden;border-radius:20px;
  box-shadow:0 30px 60px -32px rgba(16,20,15,.55);background:var(--paper-2)}
.shot img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.shot:hover img{transform:scale(1.07)}
.shot--1{top:0;left:6%;width:62%;height:56%;animation:drift 9s ease-in-out infinite}
.shot--2{bottom:4%;left:0;width:48%;height:40%;animation:drift 11s ease-in-out infinite reverse}
.shot--3{bottom:12%;right:0;width:46%;height:46%;animation:drift 13s ease-in-out infinite}
@keyframes drift{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.badge--float{
  position:absolute;top:50%;right:4%;z-index:3;background:var(--white);
  border-radius:16px;padding:14px 18px;box-shadow:0 18px 40px -20px rgba(16,20,15,.5);
  text-align:center;animation:drift 7s ease-in-out infinite reverse;
}
.badge--float strong{display:block;font:600 26px/1 'Fraunces',serif;color:var(--teal-deep)}
.badge--float span{font-size:12px;color:var(--muted)}

.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:2;
  display:flex;align-items:center;gap:10px;
  font:500 11px/1 'JetBrains Mono',monospace;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.scroll-hint span{display:block;width:1px;height:34px;background:linear-gradient(var(--teal),transparent);
  animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.3;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}

/* ---------- sections ---------- */
.section{position:relative;padding:clamp(76px,10vw,132px) var(--pad);overflow:hidden}
.section>*:not(.orb):not(.deco){position:relative;z-index:2;max-width:var(--max);margin-inline:auto}
.section--tint{background:var(--paper-2)}
.section--dark{background:var(--dark);color:var(--paper)}

/* ---------- decorative graphics ---------- */

/* faint engineering dot-grid behind dark sections */
.section--dark::before{
  content:'';position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:radial-gradient(rgba(83,223,196,.16) 1px,transparent 1px);
  background-size:26px 26px;
  -webkit-mask-image:radial-gradient(ellipse 85% 65% at 50% 0%,#000 10%,transparent 72%);
  mask-image:radial-gradient(ellipse 85% 65% at 50% 0%,#000 10%,transparent 72%);
}

/* orbit motif — echoes the ring in the logo */
.deco{position:absolute;z-index:1;pointer-events:none;color:var(--teal)}
.deco--orbit{width:clamp(220px,30vw,400px);height:auto;opacity:.5}
.deco--orbit.is-right{top:6%;right:-7%}
.deco--orbit.is-left{bottom:-6%;left:-8%;opacity:.35}
.deco .ring{fill:none;stroke:currentColor;stroke-width:.6;opacity:.45}
.deco .ring--dash{stroke-dasharray:3 7;opacity:.8;transform-origin:50% 50%;animation:spin 46s linear infinite}
.deco .ring--dash-rev{stroke-dasharray:1.5 9;opacity:.55;transform-origin:50% 50%;animation:spin 64s linear infinite reverse}
.deco .sat{fill:currentColor;transform-origin:50% 50%;animation:spin 46s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* thin rule with a travelling highlight, used under split headings */
.rule{position:relative;height:1px;background:var(--line);overflow:hidden;margin-top:34px}
.section--dark .rule{background:rgba(247,245,240,.14)}
.rule::after{
  content:'';position:absolute;top:0;left:-30%;width:30%;height:100%;
  background:linear-gradient(90deg,transparent,var(--teal),transparent);
  animation:sweep 5.5s var(--ease-soft) infinite;
}
@keyframes sweep{0%{left:-30%}60%,100%{left:100%}}

.sec-head{margin-bottom:clamp(40px,5.5vw,66px)}
.sec-head--split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);align-items:end}
.sec-title{font:600 clamp(31px,5vw,60px)/1.05 'Fraunces',serif;letter-spacing:-.03em}
.sec-title em{color:var(--teal-deep);font-style:normal}
.section--dark .sec-title em{color:var(--teal)}
.section .sec-lead{margin-top:18px;max-width:54ch;color:var(--ink-2);font-size:clamp(16px,1.6vw,18.5px)}
.sec-head--split .sec-lead{margin-top:0}
/* Dark sections win on equal specificity by coming later, so any lead inside
   one goes light automatically — no modifier class required. */
.section--dark .sec-lead,
.section .sec-lead--light{color:rgba(247,245,240,.78)}

.link-out{display:inline-flex;align-items:center;gap:9px;margin-top:34px;
  font-weight:600;font-size:15.5px;color:var(--teal);
  border-bottom:1px solid rgba(83,223,196,.4);padding-bottom:4px;transition:gap .35s var(--ease)}
.link-out:hover{gap:15px}
.link-out i{font-style:normal}

/* ---------- youtube facades ---------- */
.yt{
  position:relative;border-radius:20px;overflow:hidden;cursor:pointer;
  background:#0a0f0d;aspect-ratio:16/9;isolation:isolate;
  transition:transform .55s var(--ease),box-shadow .55s var(--ease);
}
.yt:hover,.yt:focus-visible{transform:translateY(-6px);box-shadow:0 30px 60px -30px rgba(0,0,0,.8);outline:none}
.yt:focus-visible{box-shadow:0 0 0 3px var(--teal)}
.yt__thumb{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;transform:scale(1.1);
  transition:opacity .9s var(--ease),transform 1.2s var(--ease),filter .5s;
}
.yt.is-loaded .yt__thumb{opacity:1;transform:scale(1)}
.yt:hover .yt__thumb{transform:scale(1.05)}
.yt::after{
  content:'';position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(to top,rgba(5,9,8,.96) 0%,rgba(5,9,8,.88) 22%,rgba(5,9,8,.3) 58%,rgba(5,9,8,.05) 100%);
}
.yt--feature::after{
  background:linear-gradient(to top,rgba(5,9,8,.94) 0%,rgba(5,9,8,.5) 38%,rgba(5,9,8,.05) 100%);
}
.yt__play{
  position:absolute;z-index:3;top:50%;left:50%;transform:translate(-50%,-50%) scale(.85);
  width:66px;height:66px;border-radius:50%;border:none;cursor:pointer;
  display:grid;place-items:center;color:var(--teal-ink);background:var(--teal);
  opacity:0;transition:opacity .6s var(--ease) .15s,transform .5s var(--ease),box-shadow .4s;
}
.yt.is-loaded .yt__play{opacity:1;transform:translate(-50%,-50%) scale(1)}
.yt:hover .yt__play{transform:translate(-50%,-50%) scale(1.12);box-shadow:0 0 0 14px rgba(83,223,196,.18)}
.yt__play svg{margin-left:3px}
.yt__meta{position:absolute;z-index:3;left:0;right:0;bottom:0;padding:22px 24px;
  transform:translateY(10px);opacity:0;transition:opacity .7s var(--ease) .2s,transform .7s var(--ease) .2s}
.yt.is-loaded .yt__meta{opacity:1;transform:none}
.yt__tag{display:inline-block;font:500 11px/1 'JetBrains Mono',monospace;letter-spacing:.14em;
  text-transform:uppercase;color:var(--teal);margin-bottom:9px}
.yt__meta h3{font:600 clamp(16px,1.9vw,21px)/1.25 'Fraunces',serif;letter-spacing:-.02em;color:#fff}
.yt--feature{margin-bottom:16px;aspect-ratio:2/1}

/* smaller cards: play button to the corner so it never sits on the title */
.yt-grid .yt__play,.diary .yt__play{
  top:16px;right:16px;left:auto;width:46px;height:46px;
  transform:translate(0,0) scale(.85);
}
.yt-grid .yt.is-loaded .yt__play,.diary .yt.is-loaded .yt__play{transform:translate(0,0) scale(1)}
.yt-grid .yt:hover .yt__play,.diary .yt:hover .yt__play{transform:translate(0,0) scale(1.12)}
.yt--feature .yt__meta{padding:30px 34px}
.yt--feature .yt__meta h3{font-size:clamp(20px,2.8vw,32px)}
.yt.is-playing{cursor:default}
.yt.is-playing::after,.yt.is-playing .yt__play,.yt.is-playing .yt__meta,.yt.is-playing .yt__thumb{opacity:0;pointer-events:none}
.yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0;z-index:4}

.yt-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.diary{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}

/* ---------- values ---------- */
.values{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:22px;overflow:hidden}
.val{background:var(--paper);padding:30px 28px;transition:background .45s var(--ease)}
.val:hover{background:var(--white)}
.val__ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(83,223,196,.18);color:var(--teal-deep);
  transform:scale(.8) rotate(-8deg);opacity:0;
  transition:transform .6s var(--ease),opacity .5s var(--ease),background .4s;
}
.val.is-in .val__ico{transform:none;opacity:1}
.val:hover .val__ico{background:var(--teal);color:var(--teal-ink)}
.val__ico svg{width:23px;height:23px;stroke:currentColor;stroke-width:1.6;fill:none;
  stroke-linecap:round;stroke-linejoin:round}
.val h3{font:600 23px/1.2 'Fraunces',serif;letter-spacing:-.02em;margin-bottom:10px}
.val p{font-size:15.5px;color:var(--ink-2)}

/* ---------- courses ---------- */
.courses{display:grid;grid-template-columns:repeat(auto-fit,minmax(256px,1fr));gap:16px}
.course{
  background:var(--white);border:1px solid var(--line);border-radius:22px;padding:30px 28px;
  display:flex;flex-direction:column;
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .4s;
}
.course:hover{transform:translateY(-7px);border-color:rgba(83,223,196,.6);
  box-shadow:0 26px 48px -26px rgba(16,20,15,.3)}
.course--wide{grid-column:1/-1}
.course__head{display:flex;align-items:baseline;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.course__head span{font:500 11.5px/1 'JetBrains Mono',monospace;letter-spacing:.12em;
  text-transform:uppercase;color:var(--teal-deep);padding:6px 10px;border-radius:999px;
  background:rgba(83,223,196,.16)}
.course__head h3{font:600 26px/1.1 'Fraunces',serif;letter-spacing:-.025em}
.course p{font-size:15.5px;color:var(--ink-2);margin-bottom:22px;flex:1}
.course__bar{height:4px;border-radius:999px;background:var(--paper-2);overflow:hidden;margin-bottom:10px}
.course__bar i{display:block;height:100%;width:0;border-radius:inherit;
  background:linear-gradient(90deg,var(--teal),var(--teal-deep));transition:width 1.3s var(--ease) .2s}
.course.is-in .course__bar i{width:var(--w)}
.course__note{font:500 12px/1 'JetBrains Mono',monospace;letter-spacing:.1em;
  text-transform:uppercase;color:var(--muted)}

/* ---------- gallery ---------- */
.gallery-sec{padding:0 0 clamp(70px,9vw,110px)}
.gallery{
  display:flex;gap:14px;overflow-x:auto;padding:8px var(--pad) 20px;
  scrollbar-width:none;overscroll-behavior-x:contain;
}
/* snapping only where a finger does the scrolling — it fights the JS rail */
@media (pointer:coarse){.gallery{scroll-snap-type:x mandatory}}
.gallery::-webkit-scrollbar{display:none}
.gl{position:relative;flex:0 0 clamp(210px,26vw,300px);aspect-ratio:3/4;border-radius:18px;
  overflow:hidden;scroll-snap-align:center;background:var(--paper-2)}
.gl img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease),filter .6s}
.gl:hover img{transform:scale(1.07)}
.gl figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:16px 18px;color:#fff;
  font:500 12px/1 'JetBrains Mono',monospace;letter-spacing:.14em;text-transform:uppercase;
  background:linear-gradient(to top,rgba(5,9,8,.88),rgba(5,9,8,0));
}
.gallery__hint{text-align:center;font:500 11px/1 'JetBrains Mono',monospace;
  letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
  transition:color .4s var(--ease)}

/* progress through the strip — shows why the page paused */
.rail{display:grid;gap:12px;justify-items:center;padding:0 var(--pad)}
.rail__track{width:min(220px,46vw);height:2px;border-radius:2px;background:var(--line);overflow:hidden}
.rail__track span{
  display:block;width:100%;height:100%;border-radius:inherit;background:var(--teal-deep);
  transform:scaleX(0);transform-origin:left;transition:transform .18s linear;
}
.gallery-sec.is-driving .gallery__hint{color:var(--teal-deep)}
.gallery-sec.is-driving .rail__track{background:rgba(13,110,92,.18)}

/* ---------- figures ---------- */
.figures{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;list-style:none;
  border-top:1px solid var(--line);padding-top:32px}
.figures strong{display:block;font:600 clamp(32px,5vw,58px)/1 'Fraunces',serif;
  letter-spacing:-.035em;margin-bottom:8px;color:var(--teal-deep)}
.figures span{font-size:14.5px;color:var(--muted)}
.figures__src{margin-top:26px;font-size:13px;color:var(--muted)}

/* ---------- method ---------- */
.method{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(32px,6vw,80px);align-items:start}
.method__list{list-style:none;position:relative;padding-left:30px}
/* rail: a track, and a fill that draws downward as the list comes into view */
.method__list::before{content:'';position:absolute;left:5px;top:14px;bottom:14px;width:2px;
  border-radius:2px;background:var(--line)}
.method__rail{position:absolute;left:5px;top:14px;width:2px;border-radius:2px;
  background:linear-gradient(var(--teal),var(--teal-deep));
  height:0;transition:height 1.6s var(--ease) .15s}
.method__list.is-in .method__rail{height:calc(100% - 28px)}
.method__list li{position:relative;display:flex;gap:20px;padding:22px 0;
  border-bottom:1px solid var(--line);transition:padding-left .45s var(--ease)}
.method__list li:hover{padding-left:10px}
.method__list li::before{
  content:'';position:absolute;left:-30px;top:30px;width:12px;height:12px;border-radius:50%;
  background:var(--paper);border:2px solid var(--line);
  transition:border-color .5s var(--ease),background .5s var(--ease),transform .5s var(--ease);
}
.method__list li.is-in::before{border-color:var(--teal);background:var(--teal);transform:scale(1.15)}
.method__list span{font:500 12px/1.9 'JetBrains Mono',monospace;color:var(--teal-deep);flex:0 0 26px}
.method__list h3{font:600 clamp(19px,2.3vw,25px)/1.2 'Fraunces',serif;letter-spacing:-.02em;margin-bottom:6px}
.method__list p{font-size:15.5px;color:var(--ink-2)}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.qa{border-bottom:1px solid var(--line)}
.qa summary{list-style:none;cursor:pointer;padding:23px 50px 23px 0;position:relative;
  font:600 clamp(17.5px,2.1vw,24px)/1.3 'Fraunces',serif;letter-spacing:-.02em;transition:color .3s}
.qa summary::-webkit-details-marker{display:none}
.qa summary:hover{color:var(--teal-deep)}
.qa summary i{position:absolute;right:6px;top:50%;width:16px;height:16px;margin-top:-8px}
.qa summary i::before,.qa summary i::after{
  content:'';position:absolute;top:50%;left:0;width:16px;height:2px;margin-top:-1px;
  background:var(--teal-deep);border-radius:2px;transition:transform .4s var(--ease);
}
.qa summary i::after{transform:rotate(90deg)}
.qa[open] summary i::after{transform:rotate(0)}
.qa__body{overflow:hidden;animation:openQa .45s var(--ease)}
.qa__body p{padding:0 50px 25px 0;color:var(--ink-2);max-width:72ch}
.qa__body a{color:var(--teal-deep);font-weight:600;border-bottom:1px solid rgba(13,110,92,.35)}
@keyframes openQa{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}

/* ---------- contact ---------- */
.contact{display:grid;grid-template-columns:1fr .95fr;gap:clamp(36px,6vw,80px);align-items:start}
.contact__list{list-style:none;margin-top:36px;border-top:1px solid var(--line)}
.contact__list li{display:flex;justify-content:space-between;gap:16px;padding:15px 0;
  border-bottom:1px solid var(--line)}
.contact__list span{font:500 12px/1.4 'JetBrains Mono',monospace;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted)}
.contact__list a{font-weight:600;transition:color .3s}
.contact__list a:hover{color:var(--teal-deep)}

.form{background:var(--white);border:1px solid var(--line);border-radius:24px;
  padding:clamp(24px,3.4vw,38px);display:grid;gap:17px}
.field{display:grid;gap:8px}
.field>span{font:500 12px/1 'JetBrains Mono',monospace;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted)}
.field input,.field select{
  width:100%;padding:14px 16px;font:400 16px/1 'Inter',sans-serif;color:var(--ink);
  background:var(--paper);border:1.5px solid transparent;border-radius:12px;outline:none;
  transition:border-color .3s,background .3s;
}
.field input:focus,.field select:focus{border-color:var(--teal);background:var(--white)}
.field input::placeholder{color:#a8b0aa}
.field.is-bad input,.field.is-bad select{border-color:#e0695f}

.check{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--ink-2);cursor:pointer}
.check input{appearance:none;flex:0 0 20px;width:20px;height:20px;margin-top:2px;
  border:1.5px solid var(--line);border-radius:6px;background:var(--paper);cursor:pointer;
  transition:background .3s,border-color .3s;position:relative}
.check input:checked{background:var(--teal);border-color:var(--teal)}
.check input:checked::after{content:'';position:absolute;left:6px;top:2px;width:5px;height:10px;
  border:solid var(--teal-ink);border-width:0 2px 2px 0;transform:rotate(45deg)}
.check.is-bad input{border-color:#e0695f}
.form__msg{font-size:14px;color:var(--teal-deep);font-weight:500;min-height:1em}

/* ---------- final ---------- */
.final{position:relative;overflow:hidden;background:var(--dark);color:var(--paper);
  text-align:center;padding:clamp(88px,12vw,160px) var(--pad)}
.final>*:not(.orb):not(.deco){position:relative;z-index:2}
.final__logo{width:76px;margin:0 auto 28px;animation:drift 6s ease-in-out infinite}
.final__title{font:600 clamp(40px,7.6vw,92px)/1 'Fraunces',serif;letter-spacing:-.04em;margin-bottom:22px}
.final__lead{max-width:40ch;margin:0 auto 38px;color:rgba(247,245,240,.7);font-size:clamp(16px,1.8vw,19px)}

/* ---------- footer ---------- */
.foot{display:flex;flex-wrap:wrap;gap:18px 40px;align-items:center;justify-content:space-between;
  padding:34px var(--pad);border-top:1px solid var(--line);max-width:var(--max);margin-inline:auto}
.foot__brand{display:flex;align-items:center;gap:10px;font:600 16px/1 'Fraunces',serif}
.foot__brand img{width:28px}
.foot__links{display:flex;flex-wrap:wrap;gap:20px;font-size:14.5px;color:var(--ink-2)}
.foot__links a:hover{color:var(--teal-deep)}
.foot__copy{font-size:12.5px;color:var(--muted);width:100%}

/* ---------- reveal ---------- */
.reveal{
  opacity:0;transform:translate3d(0,24px,0) scale(.994);
  transition:opacity var(--t-slow) var(--ease),transform var(--t-slow) var(--ease);
  will-change:opacity,transform;
}
.reveal.is-in{opacity:1;transform:none;will-change:auto}

/* while JS inertia scrolling drives the page, let JS own the animation */
html.has-smooth{scroll-behavior:auto}

/* first paint settles in instead of snapping (pure CSS — never leaves a blank page) */
body{animation:pageIn .55s var(--ease-soft) both}
@keyframes pageIn{from{opacity:0}to{opacity:1}}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .hero__grid{grid-template-columns:1fr;gap:46px}
  .hero__media{order:2;max-width:520px;width:100%}
  .method{grid-template-columns:1fr;gap:34px}
  .sec-head--split{grid-template-columns:1fr;align-items:start;gap:18px}
}
@media (max-width:900px){
  .nav__links{display:none}
  .nav .btn--sm{display:none}
  .nav__burger{display:flex}
  .contact{grid-template-columns:1fr}
  .figures{grid-template-columns:repeat(2,1fr);gap:22px}
}
@media (max-width:560px){
  body{font-size:16px}
  .eyebrow{letter-spacing:.11em;font-size:11px}
  .hero{padding-top:124px}
  .hero__cta .btn{flex:1 1 100%;justify-content:center}
  .hero__media{min-height:300px}
  .badge--float{right:0;padding:11px 14px}
  .yt__play{width:54px;height:54px}
  .yt--feature .yt__meta{padding:20px}
  .foot{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
  .line>span{transform:none}
  .yt__thumb,.yt__meta{opacity:1!important;transform:none!important}
  .yt__play{opacity:1!important}
}

/* ============================================================
   Multi-page additions
   ============================================================ */

/* active nav item */
.nav__links a.is-active{color:var(--ink)}
.nav__links a.is-active::after{transform:scaleX(1)}
.drawer a.is-active{color:var(--teal-deep)}

/* page header (inner pages) */
.page-head{
  position:relative;overflow:hidden;
  padding:clamp(130px,16vw,190px) var(--pad) clamp(50px,7vw,80px);
}
.page-head>*:not(.orb){position:relative;z-index:2;max-width:var(--max);margin-inline:auto}
.page-head__title{font:600 clamp(38px,6.6vw,80px)/1.02 'Fraunces',serif;letter-spacing:-.035em;margin-bottom:22px}
.page-head__lead{max-width:56ch;color:var(--ink-2);font-size:clamp(16.5px,1.8vw,20px)}
.page-head__nav{display:flex;flex-wrap:wrap;gap:9px;list-style:none;margin-top:32px}
.page-head__nav a{
  display:inline-block;font:500 13.5px/1 'Inter',sans-serif;padding:11px 16px;border-radius:999px;
  background:rgba(83,223,196,.16);color:var(--teal-ink);
  transition:background .35s var(--ease),transform .35s var(--ease);
}
.page-head__nav a:hover{background:var(--teal);transform:translateY(-2px)}

/* home: programme teaser list */
.teaser{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}
.teaser a{
  display:flex;flex-direction:column;height:100%;gap:7px;
  background:var(--white);border:1px solid var(--line);border-radius:20px;padding:26px 24px;
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .4s;
}
.teaser a:hover{transform:translateY(-7px);border-color:rgba(83,223,196,.6);
  box-shadow:0 26px 48px -26px rgba(16,20,15,.3)}
.teaser__lv{font:500 11.5px/1 'JetBrains Mono',monospace;letter-spacing:.12em;
  text-transform:uppercase;color:var(--teal-deep)}
.teaser h3{font:600 22px/1.15 'Fraunces',serif;letter-spacing:-.02em}
.teaser p{font-size:14.5px;color:var(--ink-2);flex:1}
.teaser i{font-style:normal;color:var(--teal-deep);font-size:18px;transition:transform .4s var(--ease)}
.teaser a:hover i{transform:translateX(6px)}
.link-out--dark{color:var(--teal-deep);border-bottom-color:rgba(13,110,92,.35)}

/* courses: programme blocks */
.progs{display:grid;gap:clamp(56px,8vw,104px)}
.prog{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,64px);align-items:center;
  scroll-margin-top:96px}
.prog--flip .prog__img{order:-1}
.prog__lv{display:inline-block;font:500 11.5px/1 'JetBrains Mono',monospace;letter-spacing:.14em;
  text-transform:uppercase;color:var(--teal-deep);padding:7px 12px;border-radius:999px;
  background:rgba(83,223,196,.16);margin-bottom:16px}
.prog__title{font:600 clamp(30px,4.4vw,52px)/1.05 'Fraunces',serif;letter-spacing:-.03em;margin-bottom:16px}
.prog__lead{color:var(--ink-2);font-size:clamp(16px,1.6vw,18.5px);margin-bottom:22px;max-width:52ch}
.prog__list{list-style:none;margin-bottom:22px;display:grid;gap:10px}
.prog__list li{position:relative;padding-left:26px;font-size:15.5px;color:var(--ink-2)}
.prog__list li::before{
  content:'';position:absolute;left:0;top:.52em;width:11px;height:2px;border-radius:2px;background:var(--teal)
}
.prog__fmt{font-size:15px;color:var(--ink-2);margin-bottom:10px}
.prog__fmt b{font:500 11.5px/1 'JetBrains Mono',monospace;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);margin-right:9px}
.prog__note{font-size:14.5px;color:var(--muted);max-width:50ch;margin-bottom:26px;
  border-left:2px solid var(--line);padding-left:14px}
.prog__img{border-radius:22px;overflow:hidden;aspect-ratio:4/3;background:var(--paper-2)}
.prog__img img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.prog__img:hover img{transform:scale(1.05)}

/* about: two-column split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,70px);align-items:center}
.split__img{border-radius:22px;overflow:hidden;aspect-ratio:4/3;background:var(--paper-2)}
.split__img img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.split__img:hover img{transform:scale(1.05)}
.split .sec-lead + .sec-lead{margin-top:14px}

/* ---------- location map ---------- */
.mapwrap{display:grid;grid-template-columns:1.55fr 1fr;gap:16px;align-items:stretch}
.mapwrap__frame{
  position:relative;border-radius:22px;overflow:hidden;min-height:340px;
  border:1px solid rgba(247,245,240,.14);background:#0a0f0d;
}
.mapwrap__frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0;
  filter:grayscale(.35) contrast(1.04)}
.mapwrap__card{
  background:rgba(247,245,240,.05);border:1px solid rgba(247,245,240,.14);
  border-radius:22px;padding:30px 28px;display:flex;flex-direction:column;align-items:flex-start;
  transition:border-color .45s var(--ease),background .45s var(--ease);
}
.mapwrap__card:hover{border-color:rgba(83,223,196,.45);background:rgba(83,223,196,.07)}
.mapwrap__pin{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:rgba(83,223,196,.18);color:var(--teal);margin-bottom:18px}
.mapwrap__pin svg{width:23px;height:23px;fill:none;stroke:currentColor;stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round}
.mapwrap__card h3{font:600 24px/1.2 'Fraunces',serif;letter-spacing:-.02em;margin-bottom:5px}
.mapwrap__card>p{color:rgba(247,245,240,.7);font-size:15px;margin-bottom:20px}
.mapwrap__meta{list-style:none;width:100%;margin-bottom:24px;border-top:1px solid rgba(247,245,240,.14)}
.mapwrap__meta li{display:flex;justify-content:space-between;gap:14px;padding:11px 0;
  border-bottom:1px solid rgba(247,245,240,.14);font-size:14.5px}
.mapwrap__meta span{font:500 11px/1.5 'JetBrains Mono',monospace;letter-spacing:.14em;
  text-transform:uppercase;color:rgba(247,245,240,.55)}
.mapwrap__meta a:hover{color:var(--teal)}
.mapwrap__card .btn i{font-style:normal}

/* ---------- 3D geographic map ---------- */
.geomap{display:grid;gap:clamp(26px,4vw,44px);--tilt:50deg;--spin:-14deg}
.geomap__stage{position:relative;perspective:1250px;perspective-origin:50% 42%;padding:10px 0 30px}
.geomap__plane{
  position:relative;transform-style:preserve-3d;
  transform:rotateX(var(--tilt)) rotateZ(var(--spin));
  transition:transform 1.4s var(--ease);
  animation:mapFloat 11s ease-in-out infinite;
}
.geomap__svg{display:block;width:100%;height:auto;overflow:visible}

/* soft ground shadow under the landmass */
.geomap__shadow{
  position:absolute;left:12%;right:12%;bottom:6%;height:60px;border-radius:50%;
  background:radial-gradient(ellipse at 50% 50%,rgba(16,20,15,.3),rgba(16,20,15,0) 70%);
  filter:blur(14px);z-index:-1;
}
@keyframes mapFloat{
  0%,100%{transform:rotateX(var(--tilt)) rotateZ(var(--spin)) translateY(0)}
  50%{transform:rotateX(var(--tilt)) rotateZ(var(--spin)) translateY(-14px)}
}

/* extruded side wall: stacked copies of the silhouette */
.geomap__extrude use{fill:#c3bdac}
.geomap__extrude use:last-child{fill:#d2ccbd}

.state{
  fill:#e8e4d9;stroke:var(--paper);stroke-width:1;stroke-linejoin:round;
  transition:fill .45s var(--ease),filter .45s var(--ease);
}
.state:hover{fill:#d8d2c3}
.state.is-on{
  fill:var(--teal);stroke:rgba(255,255,255,.65);
  filter:drop-shadow(0 0 9px rgba(83,223,196,.85));
}
.geomap.is-in .state.is-on{animation:stateGlow 3.6s var(--ease-soft) infinite}
@keyframes stateGlow{
  0%,100%{filter:drop-shadow(0 0 6px rgba(83,223,196,.6))}
  50%{filter:drop-shadow(0 0 18px rgba(83,223,196,1))}
}

/* upright markers standing on the tilted plane */
.pin{position:absolute;left:var(--x);top:var(--y);width:0;height:0;transform-style:preserve-3d}
.pin__stem,.pin__tag{
  position:absolute;left:0;bottom:0;
  transform:rotateZ(calc(-1 * var(--spin))) rotateX(calc(-1 * var(--tilt)));
  transform-origin:0 100%;
}
.pin__stem{
  width:2px;height:54px;margin-left:-1px;border-radius:2px;
  background:linear-gradient(to top,var(--teal),rgba(83,223,196,.15));
}
.pin__stem::after{
  content:'';position:absolute;left:50%;bottom:-4px;width:9px;height:9px;margin-left:-4.5px;
  border-radius:50%;background:var(--teal);box-shadow:0 0 0 0 rgba(83,223,196,.6);
  animation:pinPing 2.6s var(--ease-soft) infinite;
}
@keyframes pinPing{70%{box-shadow:0 0 0 12px rgba(83,223,196,0)}100%{box-shadow:0 0 0 0 rgba(83,223,196,0)}}
.pin__tag{
  display:flex;align-items:center;gap:7px;white-space:nowrap;
  margin-bottom:54px;padding:7px 12px;border-radius:999px;
  background:var(--white);color:var(--ink);
  font:500 13px/1 'Inter',sans-serif;
  box-shadow:0 10px 24px -10px rgba(16,20,15,.55),0 0 0 1px rgba(16,20,15,.06);
  translate:-50% 0;
}
.pin__tag b{font:600 12px/1 'JetBrains Mono',monospace;color:var(--teal-deep)}

@media (max-width:860px){
  .geomap{--tilt:38deg;--spin:-8deg}
  .pin__tag{font-size:11.5px;padding:5px 9px;gap:5px}
  .pin__stem{height:38px}
  .pin__tag{margin-bottom:38px}
}
/* at phone width the labels collide, so markers stay and the legend names them */
@media (max-width:700px){
  .geomap{--tilt:30deg;--spin:-6deg}
  .pin__tag{display:none}
  .pin__stem{height:26px}
  .pin__stem::after{width:11px;height:11px;margin-left:-5.5px;bottom:-5px}
}
@media (prefers-reduced-motion:reduce){
  .geomap__plane{animation:none}
  .geomap.is-in .state.is-on{animation:none}
  .pin__stem::after{animation:none}
}

.usmap__legend{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:8px}
.usmap__legend li{
  font-size:13.5px;color:var(--ink-2);padding:8px 14px;border-radius:999px;
  background:rgba(83,223,196,.16);
}
.usmap__legend b{font:600 13px/1 'JetBrains Mono',monospace;color:var(--teal-deep);margin-right:7px}
.section .usmap__note{margin-top:24px;margin-inline:0;font-size:13px;color:var(--muted);max-width:66ch}

@media (max-width:980px){
  .prog,.split,.mapwrap{grid-template-columns:1fr}
  .prog--flip .prog__img{order:0}
  .prog__img,.split__img{aspect-ratio:16/10}
  .mapwrap__frame{min-height:300px}
}
@media (max-width:560px){
  .page-head{padding-top:112px}
}

/* honeypot — hidden from people, bots fill it and get silently dropped */
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}