/* ==========================================================================
   christopherleidli.com
   Dala-style dark system (scale + whitespace, no cards/shadows)
   re-keyed to the Rx for Biotech palette.
   ========================================================================== */

:root {
  /* Surfaces — Rx for Biotech navy, sampled from the podcast art */
  --bg: #05081D;
  --bg-raised: #0A0E2A;
  --line: rgba(255, 255, 255, 0.10);

  /* Text */
  --text: #FFFFFF;
  --text-2: #BDBFCC;   /* body */
  --text-3: #8A8DA3;   /* labels, inactive */

  /* Brand accents */
  --cyan: #1ED3EA;     /* primary action (Dala's violet role) */
  --cyan-ink: #04131A; /* text on cyan */
  --lime: #C6F432;     /* eyebrows & emphasis (Dala's saffron role) */
  --mint: #24E6A9;     /* Therapy4me / tertiary */

  /* Type */
  --font-display: "Inter Tight", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Rhythm (6px base) */
  --s1: 6px; --s2: 12px; --s3: 18px; --s4: 24px; --s5: 36px;
  --s6: 60px; --s7: 96px; --s8: 120px;
  --radius: 24px;
  --wrap: 1280px;
  --gutter: clamp(16px, 4vw, 48px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-2);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
::selection { background: var(--cyan); color: var(--cyan-ink); }
:focus-visible { outline: 2px solid var(--lime); outline-offset: 3px; border-radius: 6px; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

.skip {
  position: absolute; left: -9999px; top: 12px; z-index: 100;
  background: var(--cyan); color: var(--cyan-ink); padding: 10px 16px; border-radius: 999px; font-weight: 600;
}
.skip:focus { left: 12px; }

/* ---------- Type ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(56px, 9vw, 120px);
  line-height: 0.95;
  letter-spacing: -0.045em;
  color: var(--text);
  margin: 0;
}
.h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(32px, 4.2vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.035em;
  color: var(--text);
  margin: 0 0 var(--s4);
  text-wrap: balance;
}
.subhead {
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--text);
  font-weight: 300;
  margin: 0 0 var(--s4);
}
.eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lime);
  margin: 0 0 var(--s3);
}
.lead { font-size: clamp(17px, 1.4vw, 20px); line-height: 1.55; color: var(--text-2); }
.prose p { margin: 0 0 var(--s3); max-width: 60ch; }
.prose p:last-child { margin-bottom: 0; }
.accent-cyan { color: var(--cyan); }
.accent-lime { color: var(--lime); }

/* ---------- Buttons & links ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-body); font-weight: 600; font-size: 14px;
  letter-spacing: 0.04em; text-transform: uppercase; text-decoration: none;
  padding: 15px 24px; border-radius: 999px; border: 1px solid transparent;
  cursor: pointer; transition: transform .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--cyan); color: var(--cyan-ink); }
.btn--primary:hover { background: #5CE3F2; }
.btn--outline { border-color: rgba(255,255,255,.22); color: var(--text); background: transparent; }
.btn--outline:hover { border-color: var(--cyan); color: var(--cyan); }
.btn--sm { padding: 10px 18px; font-size: 12.5px; }

.link-ghost {
  color: var(--text); text-decoration: none; font-weight: 400; font-size: 15px;
  border-bottom: 1px solid rgba(255,255,255,.25); padding-bottom: 2px;
  transition: color .2s ease, border-color .2s ease;
}
.link-ghost:hover { color: var(--lime); border-color: var(--lime); }
.link-row { display: flex; flex-wrap: wrap; gap: var(--s3) var(--s4); margin-top: var(--s5); }

/* ---------- Nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background-color .3s ease, backdrop-filter .3s ease;
}
.nav.is-scrolled { background: rgba(5, 8, 29, 0.82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.nav__inner {
  max-width: var(--wrap); margin: 0 auto; padding: 18px var(--gutter);
  display: flex; align-items: center; gap: var(--s5);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); margin-right: auto; }
.brand__mark { width: 26px; height: 26px; }
.brand__name { font-family: var(--font-display); font-weight: 500; font-size: 17px; letter-spacing: -0.01em; }
.nav__links { display: flex; gap: var(--s5); }
.nav__links a, .nav__mobile a {
  color: var(--text-3); text-decoration: none; font-weight: 600; font-size: 13px;
  letter-spacing: 0.1em; text-transform: uppercase; transition: color .2s ease;
}
.nav__links a:hover, .nav__links a.is-active { color: var(--text); }
.nav__toggle { display: none; }

@media (max-width: 900px) {
  .nav__links, .nav__cta { display: none; }
  .nav__toggle {
    display: grid; place-content: center; gap: 6px; width: 44px; height: 44px;
    background: transparent; border: 1px solid var(--line); border-radius: 999px; cursor: pointer;
  }
  .nav__toggle span { display: block; width: 18px; height: 1.5px; background: var(--text); transition: transform .25s ease; }
  .nav__toggle[aria-expanded="true"] span:first-child { transform: translateY(3.75px) rotate(45deg); }
  .nav__toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.75px) rotate(-45deg); }
  .nav__mobile {
    display: flex; flex-direction: column; gap: var(--s4);
    padding: var(--s4) var(--gutter) var(--s5); background: rgba(5,8,29,.96); backdrop-filter: blur(14px);
  }
  .nav__mobile[hidden] { display: none; }
  .nav__mobile a { font-size: 15px; color: var(--text); }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding-top: 120px; padding-bottom: var(--s5);
  overflow: hidden; isolation: isolate;
}
.hero__media {
  position: absolute; inset: 0 0 0 28%; z-index: -2;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 38%);
          mask-image: linear-gradient(90deg, transparent 0%, #000 38%);
}
.hero__media::after { /* brand tint + bottom fade into page */
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(5,8,29,.55) 0%, rgba(5,8,29,0) 22%, rgba(5,8,29,0) 62%, var(--bg) 100%),
    linear-gradient(90deg, rgba(5,8,29,.35), rgba(5,8,29,.05));
}
.hero__clip {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%;
  opacity: 0; transition: opacity 1.2s ease; filter: saturate(.9) contrast(1.04);
}
.hero__clip.is-active { opacity: 1; }
.hero__particles { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; pointer-events: none; }

.hero__content { position: relative; }
.hero__content > * { max-width: 640px; }
.hero__statement {
  font-family: var(--font-display); font-weight: 300;
  font-size: clamp(24px, 2.8vw, 38px); line-height: 1.18; letter-spacing: -0.025em;
  color: var(--text); margin: var(--s4) 0 var(--s3);
}
.hero__lead { max-width: 480px; margin: 0 0 var(--s5); }
.hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s4); }

.hero__dots { display: flex; align-items: center; gap: 10px; margin-top: var(--s6); }
.dot {
  width: 8px; height: 8px; padding: 0; border-radius: 999px; border: 0; cursor: pointer;
  background: rgba(255,255,255,.28); transition: width .35s ease, background-color .35s ease;
}
.dot.is-active { width: 32px; background: var(--cyan); }
.hero__pause {
  margin-left: 6px; width: 28px; height: 28px; display: grid; place-content: center;
  background: transparent; border: 1px solid var(--line); border-radius: 999px; cursor: pointer;
}
.hero__pause svg { width: 12px; height: 12px; fill: var(--text-2); }
.hero__pause .i-play { display: none; }
.hero__pause[aria-pressed="true"] .i-pause { display: none; }
.hero__pause[aria-pressed="true"] .i-play { display: block; }

@media (max-width: 760px) {
  .hero { justify-content: flex-start; padding-top: 0; }
  .hero__media {
    position: relative; inset: auto; height: 62svh; min-height: 380px; margin-bottom: -120px;
    -webkit-mask-image: linear-gradient(180deg, #000 55%, transparent 100%);
            mask-image: linear-gradient(180deg, #000 55%, transparent 100%);
  }
  .hero__clip { object-position: 50% 25%; }
  .hero__dots { margin-top: var(--s5); }
}

/* ---------- Proof strip ---------- */
.proof { padding: var(--s6) 0; }
.proof__inner { border-top: 1px solid var(--line); padding-top: var(--s5); }
.proof__label { margin: 0 0 var(--s3); font-size: 13px; letter-spacing: .1em; text-transform: uppercase; font-weight: 600; color: var(--text-3); line-height: 1.5; }
.proof__list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--s3) var(--s5); }
@media (max-width: 760px) { .proof__list { justify-content: flex-start; } }
.proof__list li { font-family: var(--font-display); font-size: clamp(20px, 2vw, 26px); font-weight: 400; letter-spacing: -0.02em; color: var(--text); opacity: .82; }

/* ---------- Sections & split layout ---------- */
.section { padding: var(--s7) 0; }
@media (min-width: 1000px) { .section { padding: var(--s8) 0; } }
.section__head { max-width: 780px; margin-bottom: var(--s6); }

.split { display: grid; gap: var(--s6); align-items: center; }
@media (min-width: 900px) {
  .split { grid-template-columns: 1.05fr 1fr; gap: clamp(48px, 7vw, 110px); }
  .split--media-left { grid-template-columns: 1fr 1.05fr; }
  .split--media-left > figure { order: -1; }
}
.split__text .btn { margin-top: var(--s5); }

figure { margin: 0; }
.portrait img, .media-frame video, .cover img {
  width: 100%; border-radius: var(--radius); object-fit: cover; background: var(--bg-raised);
}
.portrait img { aspect-ratio: 4 / 5; object-position: 50% 15%; }
.portrait--wide img { aspect-ratio: 1 / 1; object-position: 50% 30%; }
.media-frame video { aspect-ratio: 4 / 5; }
.media-frame--tall video { aspect-ratio: 4 / 5; object-position: 45% 50%; }
.cover img { aspect-ratio: 1 / 1; }

/* ---------- Pull quote ---------- */
.pullquote { margin-top: var(--s7); }
.pullquote p {
  margin: 0; max-width: 1080px;
  font-family: var(--font-display); font-weight: 300;
  font-size: clamp(28px, 4vw, 56px); line-height: 1.12; letter-spacing: -0.035em; color: var(--text);
  text-wrap: balance;
}
.pullquote em { font-style: normal; color: var(--lime); }

/* ---------- Genoplex video ---------- */
.embed {
  position: relative; aspect-ratio: 16 / 9; margin-top: var(--s5);
  border-radius: var(--radius); overflow: hidden; background: var(--bg-raised);
  border: 1px solid var(--line);
}
.embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ---------- Capabilities ---------- */
.capabilities { list-style: none; margin: var(--s5) 0 0; padding: 0; }
.capabilities li {
  display: flex; gap: var(--s4); align-items: baseline;
  padding: var(--s3) 0; border-top: 1px solid var(--line);
  font-family: var(--font-display); font-size: clamp(18px, 1.6vw, 21px); color: var(--text); letter-spacing: -0.01em; font-weight: 400;
}
.capabilities li:last-child { border-bottom: 1px solid var(--line); }
.capabilities span { font-family: var(--font-body); font-size: 12px; font-weight: 600; letter-spacing: .1em; color: var(--cyan); min-width: 22px; }

/* ---------- Timeline ---------- */
.timeline {
  list-style: none; margin: 0; padding: 0; position: relative;
  display: grid; grid-template-columns: repeat(9, minmax(0, 1fr)); gap: var(--s3);
}
.timeline::before {
  content: ""; position: absolute; left: 0; right: 0; top: 34px; height: 1px;
  background: linear-gradient(90deg, rgba(255,255,255,.08), var(--cyan) 70%, var(--lime));
}
.timeline li { position: relative; padding-top: 58px; }
.timeline li::before {
  content: ""; position: absolute; top: 30px; left: 0; width: 9px; height: 9px; border-radius: 999px;
  background: var(--bg); border: 1.5px solid var(--cyan);
}
.timeline li.is-current::before { background: var(--lime); border-color: var(--lime); box-shadow: 0 0 0 6px rgba(198,244,50,.15); }
.timeline__year { position: absolute; top: 0; left: 0; font-size: 12px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--lime); }
.timeline__org { display: block; font-family: var(--font-display); font-size: clamp(16px, 1.45vw, 20px); line-height: 1.2; letter-spacing: -0.015em; color: var(--text); font-weight: 400; }
.timeline__role { display: block; margin-top: 6px; font-size: 13px; color: var(--text-3); }

@media (max-width: 900px) {
  .timeline { grid-template-columns: 1fr; gap: 0; padding-left: 28px; }
  .timeline::before { left: 4px; right: auto; top: 6px; bottom: 6px; width: 1px; height: auto;
    background: linear-gradient(180deg, rgba(255,255,255,.08), var(--cyan) 70%, var(--lime)); }
  .timeline li { padding: 0 0 var(--s4); }
  .timeline li::before { top: 8px; left: -28px; }
  .timeline__year { position: static; display: block; margin-bottom: 2px; }
}

.education { margin-top: var(--s7); }
.education__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0 var(--s5); }
@media (min-width: 760px) { .education__list { grid-template-columns: 1fr 1fr; } }
.education__list li { display: flex; flex-direction: column; gap: 4px; padding: var(--s3) 0; border-top: 1px solid var(--line); }
.education__list strong { font-family: var(--font-display); font-weight: 400; font-size: clamp(19px, 1.7vw, 23px); letter-spacing: -0.015em; color: var(--text); }
.education__list span { font-size: 15px; color: var(--text-3); }

/* ---------- Podcast ---------- */
.section--podcast { background: radial-gradient(900px 600px at 20% 38%, rgba(30,211,234,.08), transparent 70%); }
.platforms { display: flex; flex-wrap: wrap; gap: var(--s2); margin-top: var(--s5); }
.platforms .btn { margin-top: 0; }
.powered { margin: var(--s4) 0 0; font-size: 14px; color: var(--text-3); }
.powered a { color: var(--mint); text-decoration: none; font-weight: 600; }
.powered a:hover { text-decoration: underline; }

.guests { margin-top: var(--s7); }
.guests__list {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); column-gap: var(--s5);
}
.guests__list li { border-top: 1px solid var(--line); }
.guests__list a {
  display: flex; flex-direction: column; gap: 2px; padding: var(--s3) 0;
  color: inherit; text-decoration: none;
}
.guests__list strong { font-family: var(--font-display); font-weight: 400; color: var(--text); font-size: 19px; letter-spacing: -0.01em; transition: color .2s; }
.guests__list span { font-size: 14px; color: var(--text-3); }
.guests__list em { margin-top: 6px; font-style: normal; font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--cyan); opacity: .75; transition: opacity .2s; }
.guests__list a:hover strong, .guests__list a:focus-visible strong { color: var(--cyan); }
.guests__list a:hover em, .guests__list a:focus-visible em { opacity: 1; }

/* ---------- Talks ---------- */
.talks { display: grid; gap: var(--s6); margin-top: var(--s7); }
@media (min-width: 1000px) { .talks { grid-template-columns: 1fr 1.6fr; gap: var(--s7); } }
.talks__label { font-size: 13px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--text-3); margin: 0 0 var(--s3); }
.talks__label--upcoming { color: var(--lime); display: flex; align-items: center; gap: 10px; }
.talks__label--upcoming::before { content: ""; width: 8px; height: 8px; border-radius: 99px; background: var(--lime); box-shadow: 0 0 0 0 rgba(198,244,50,.5); animation: pulse 2.4s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(198,244,50,0); } 100% { box-shadow: 0 0 0 0 rgba(198,244,50,0); } }
@media (prefers-reduced-motion: reduce) { .talks__label--upcoming::before { animation: none; } }

.talk { display: grid; grid-template-columns: 130px 1fr; gap: var(--s4); padding: var(--s4) 0; border-top: 1px solid var(--line); }
.talk time { font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--cyan); padding-top: 4px; }
.talk h3 { font-family: var(--font-display); font-weight: 400; font-size: clamp(19px, 1.7vw, 23px); line-height: 1.25; letter-spacing: -0.015em; color: var(--text); margin: 0 0 6px; }
.talk p { margin: 0 0 var(--s2); font-size: 15px; color: var(--text-3); }
.talk--video { grid-template-columns: minmax(150px, 220px) 1fr; align-items: center; }
.talk--video time { display: block; margin-bottom: 6px; padding: 0; }
.talk__thumb { position: relative; display: block; border-radius: 16px; overflow: hidden; }
.talk__thumb img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; transition: transform .4s ease; }
.talk__thumb:hover img { transform: scale(1.04); }
.play { position: absolute; inset: 0; margin: auto; width: 46px; height: 46px; border-radius: 999px; background: var(--cyan); }
.play::after { content: ""; position: absolute; left: 18px; top: 14px; border-left: 14px solid var(--cyan-ink); border-top: 9px solid transparent; border-bottom: 9px solid transparent; }
@media (max-width: 560px) {
  .talk, .talk--video { grid-template-columns: 1fr; gap: var(--s2); }
}

/* ---------- Connect / form ---------- */
.inquiry { margin-top: var(--s5); padding-top: var(--s4); border-top: 1px solid var(--line); }
.inquiry__title { font-size: 13px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--text-3); margin: 0 0 var(--s3); }
.inquiry__grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s3); }
.inquiry__grid .full { grid-column: 1 / -1; }
@media (max-width: 560px) { .inquiry__grid { grid-template-columns: 1fr; } }
.inquiry label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-3); }
.inquiry input, .inquiry textarea {
  font: inherit; font-size: 16px; color: var(--text); background: rgba(255,255,255,.04);
  border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; color-scheme: dark;
  transition: border-color .2s ease, background-color .2s ease;
}
.inquiry input:focus, .inquiry textarea:focus { outline: none; border-color: var(--cyan); background: rgba(30,211,234,.05); }
.inquiry textarea { resize: vertical; min-height: 96px; }
.inquiry .btn { margin-top: var(--s4); }
.inquiry__status { min-height: 1.4em; margin: var(--s2) 0 0; font-size: 14px; color: var(--lime); }

.socials { display: flex; flex-wrap: wrap; gap: var(--s4); margin-top: var(--s5); }
.socials a { color: var(--text-3); text-decoration: none; font-size: 14px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; transition: color .2s ease; }
.socials a:hover { color: var(--cyan); }

.closing {
  margin-top: var(--s8); margin-bottom: 0;
  font-family: var(--font-display); font-weight: 300; font-size: clamp(28px, 4.4vw, 60px);
  line-height: 1.1; letter-spacing: -0.035em; color: var(--text); text-wrap: balance;
}

/* ---------- Footer ---------- */
.footer { padding: var(--s6) 0 var(--s5); }
.footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--s3); border-top: 1px solid var(--line); padding-top: var(--s4); font-size: 14px; color: var(--text-3); }
.footer a { color: var(--text-3); text-decoration: none; }
.footer a:hover { color: var(--text); }
/* The logo's wordmark is navy, so it sits on a white plate to stay legible on the dark footer */
.footer__logo { display: inline-flex; padding: 10px 16px; border-radius: 14px; background: #fff; transition: transform .2s; }
.footer__logo:hover { transform: translateY(-1px); }
.footer__logo img { display: block; width: 190px; }

/* ---------- Reveal on scroll ---------- */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s ease, transform .9s cubic-bezier(.2,.7,.2,1); }
.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js .reveal { opacity: 1; transform: none; transition: none; } }