/* Layout: a fixed, slowly drifting light field behind everything; content floats above it in glass panels.
   Parallax layers move at different speeds on scroll. */
:root {
  --bg: #e8eef3;
  --fg: #0c1a1d;
  --muted: #4a5a5f;
  --accent: #0a7a6b;
  --glass: rgba(255, 255, 255, .36);
  --glass-strong: rgba(255, 255, 255, .55);
  --edge: rgba(255, 255, 255, .6);
  --hi: rgba(255, 255, 255, .9);
  --lo: rgba(20, 50, 60, .08);
  --spec: rgba(255, 255, 255, .6);
  --rim: rgba(255, 255, 255, .95);
  --shadow: 0 12px 40px rgba(25, 55, 75, .14);
  --orb-1: #a7d8cf;
  --orb-2: #e6bcc2;
  --orb-3: #b3d1e3;
  --orb-4: #e8d9b5;
  --orb-alpha: .55;
  --sky-top: #9fd3f0;
  --sky-bottom: #ffe1c9;
  --m-far: #c5d6e4;
  --m-mid: #8fb0c4;
  --m-near: #4f7d8c;
  --snow: #ffffff;
  --star: transparent;
  --font-display: "Bricolage Grotesque", "Avenir Next", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --blur: 22px;
  --r: 22px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #05090d; --fg: #e9f2f1; --muted: #9aaba9; --accent: #5eead4;
    --glass: rgba(255, 255, 255, .055); --glass-strong: rgba(255, 255, 255, .1);
    --edge: rgba(255, 255, 255, .12); --hi: rgba(255, 255, 255, .25); --lo: rgba(0, 0, 0, .45);
    --spec: rgba(255, 255, 255, .13); --rim: rgba(255, 255, 255, .45);
    --shadow: 0 24px 60px rgba(0, 0, 0, .5);
    --orb-1: #1f6b62; --orb-2: #6e3446; --orb-3: #24506e; --orb-4: #6b5328; --orb-alpha: .38;
   
    --sky-top: #070d1c; --sky-bottom: #1d2a44;
    --m-far: #2a3a55; --m-mid: #1a2840; --m-near: #0d1626; --snow: #c9d8ee; --star: #e8f0ff;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #05090d; --fg: #e9f2f1; --muted: #9aaba9; --accent: #5eead4;
  --glass: rgba(255, 255, 255, .055); --glass-strong: rgba(255, 255, 255, .1);
  --edge: rgba(255, 255, 255, .12); --hi: rgba(255, 255, 255, .25); --lo: rgba(0, 0, 0, .45);
  --spec: rgba(255, 255, 255, .13); --rim: rgba(255, 255, 255, .45);
  --shadow: 0 24px 60px rgba(0, 0, 0, .5);
  --orb-1: #1f6b62; --orb-2: #6e3446; --orb-3: #24506e; --orb-4: #6b5328; --orb-alpha: .38;
 
  --sky-top: #070d1c; --sky-bottom: #1d2a44;
  --m-far: #2a3a55; --m-mid: #1a2840; --m-near: #0d1626; --snow: #c9d8ee; --star: #e8f0ff;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg); color: var(--fg);
  font: 400 1rem/1.6 var(--font-body);
  padding-inline: 16px; padding-block: 0 40px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color .4s ease;
}
.wrap { max-width: 980px; margin: 0 auto; position: relative; }
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
code { font: 500 .85em var(--font-mono); }

/* ---------- Light field (fixed background) ---------- */
.field { position: fixed; inset: 0; z-index: -2; overflow: hidden; pointer-events: none; }
.orb {
  position: absolute; border-radius: 50%; filter: blur(70px); opacity: var(--orb-alpha);
  will-change: transform, translate;
}
.orb.o1 { width: 46vmax; height: 46vmax; left: -12vmax; top: -10vmax; background: var(--orb-1); animation: drift1 26s ease-in-out infinite alternate; }
.orb.o2 { width: 38vmax; height: 38vmax; right: -10vmax; top: 18vh; background: var(--orb-2); animation: drift2 30s ease-in-out infinite alternate; }
.orb.o3 { width: 42vmax; height: 42vmax; left: 20vw; top: 70vh; background: var(--orb-3); animation: drift3 34s ease-in-out infinite alternate; }
.orb.o4 { width: 26vmax; height: 26vmax; left: 55vw; top: 120vh; background: var(--orb-4); animation: drift1 22s ease-in-out infinite alternate-reverse; }
@keyframes drift1 { to { transform: translate(14vw, 10vh) scale(1.15); } }
@keyframes drift2 { to { transform: translate(-16vw, 14vh) scale(.9); } }
@keyframes drift3 { to { transform: translate(10vw, -18vh) scale(1.1); } }
.grain {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .05; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Liquid glass ---------- */
.glass {
  position: relative; isolation: isolate;
  border-radius: var(--r);
  background: var(--glass);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
  backdrop-filter: blur(var(--blur)) saturate(180%);
  border: 1px solid var(--edge);
  box-shadow: var(--shadow), inset 0 1px 0 var(--hi), inset 0 -1px 1px var(--lo);
}
/* moving specular light that follows the pointer */
.glass::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; z-index: -1; pointer-events: none;
  background: radial-gradient(520px circle at var(--mx, 20%) var(--my, -10%), var(--spec), transparent 42%);
  transition: background-position .2s;
}
/* bright rim on the top-left and bottom-right edges */
.glass::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; pointer-events: none;
  background: linear-gradient(140deg, var(--rim), transparent 32%, transparent 68%, var(--rim));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: .7;
}
/* Chromium only: real refraction through an SVG displacement filter */
.lens-on .lens { position: absolute; inset: 0; border-radius: inherit; z-index: -2; overflow: hidden;
  -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px); filter: url(#lg-distort) saturate(140%); }


/* ---------- Floating nav pill ---------- */
.nav {
  position: fixed; z-index: 20; left: 50%; transform: translateX(-50%);
  top: calc(env(safe-area-inset-top, 0px) + 14px);
  display: flex; align-items: center; gap: 6px; padding: 6px;
  border-radius: 999px; --r: 999px; --blur: 16px;
  width: max-content; max-width: calc(100vw - 32px);
}
.brand { font: 800 .95rem/1 var(--font-display); color: var(--fg); text-decoration: none; padding: 0 10px 0 12px; letter-spacing: -.01em; white-space: nowrap; }
.nav a.tab {
  font: 500 .85rem/1 var(--font-body); color: var(--muted); text-decoration: none;
  padding: 10px 14px; border-radius: 999px; transition: color .2s, background-color .2s;
}
.nav a.tab:hover { color: var(--fg); }
.nav a.tab[aria-current="page"] { color: var(--fg); background: var(--glass-strong); box-shadow: inset 0 1px 0 var(--hi), 0 2px 10px var(--lo); }
.theme-btn {
  width: 36px; height: 36px; border-radius: 50%; border: 0; background: transparent; color: var(--fg);
  display: grid; place-items: center; cursor: pointer;
}
.theme-btn:hover { background: var(--glass-strong); }
.theme-btn svg { width: 18px; height: 18px; }
.progress { position: absolute; left: 18px; right: 18px; bottom: 2px; height: 2px; border-radius: 2px; overflow: hidden; pointer-events: none; }
.progress i { display: block; height: 100%; width: 100%; background: var(--accent); transform-origin: left; transform: scaleX(var(--p, 0)); }

/* ---------- Hero ---------- */
.hero { position: relative; padding-block: 132px 40px; }
.status {
  display: inline-flex; align-items: center; gap: 10px; padding: 8px 14px 8px 10px; border-radius: 999px; --r: 999px; --blur: 14px;
  font: 500 .8rem/1 var(--font-mono); color: var(--fg);
}
.pulse { position: relative; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.pulse::after { content: ""; position: absolute; inset: -4px; border-radius: 50%; border: 2px solid var(--accent); animation: ping 2s ease-out infinite; }
@keyframes ping { from { transform: scale(.6); opacity: .9; } to { transform: scale(1.8); opacity: 0; } }

.name {
  margin: 28px 0 0; font: 800 clamp(3.4rem, 13vw, 9.5rem)/.86 var(--font-display);
  letter-spacing: -.055em; display: grid;
}
.name span { display: block; will-change: translate; }
.name .l2 {
  padding-left: .55em;
  background: linear-gradient(100deg, var(--fg) 10%, var(--accent) 55%, var(--fg) 95%);
  background-size: 200% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: sheen 8s ease-in-out infinite alternate;
}
@keyframes sheen { to { background-position: 100% 0; } }

.hero-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 20px; margin-top: 36px; align-items: end; }
.intro { padding: 26px 28px; display: grid; gap: 18px; }
.lede { font-size: 1.15rem; line-height: 1.55; margin: 0; }
.lede strong { font-weight: 600; }
.links { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  font: 500 .9rem/1 var(--font-body); text-decoration: none; color: var(--fg);
  padding: 12px 16px; border-radius: 999px; --r: 999px; --blur: 12px;
  transition: transform .25s cubic-bezier(.2, .8, .2, 1.2);
}
.btn:hover { transform: translateY(-2px) scale(1.03); }
.btn.solid { background: var(--fg); color: var(--bg); border-color: transparent; }
.btn svg { width: 16px; height: 16px; }

.facts-card { padding: 22px 24px; display: grid; gap: 14px; }
.fact { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; border-bottom: 1px solid var(--edge); padding-bottom: 12px; }
.fact:last-child { border-bottom: 0; padding-bottom: 0; }
.fact dt { font: 400 .78rem/1.4 var(--font-mono); color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.fact dd { margin: 0; font: 600 1rem/1.3 var(--font-body); text-align: right; font-variant-numeric: tabular-nums; }

/* floating glass objects (decor) */
.float { position: absolute; pointer-events: none; z-index: -1; will-change: translate; }
.float > div { animation: bob 7s ease-in-out infinite alternate; }
@keyframes bob { to { transform: translateY(-18px) rotate(8deg); } }
.sphere { width: 130px; height: 130px; border-radius: 50%; --r: 50%; --blur: 6px;
  background: radial-gradient(circle at 32% 28%, var(--hi), transparent 30%), radial-gradient(circle at 70% 75%, var(--glass-strong), var(--glass) 70%); }
.ring { width: 170px; height: 170px; border-radius: 50%; border: 18px solid var(--glass-strong); --blur: 4px;
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
  box-shadow: inset 0 2px 0 var(--hi), 0 10px 30px var(--lo), 0 0 0 1px var(--edge); }
.pill { width: 200px; height: 64px; border-radius: 999px; --r: 999px; --blur: 8px; }
.f1 { right: 4%; top: 40px; }
.f2 { right: 30%; top: 300px; }
.f2 > div { animation-duration: 9s; }
.f3 { left: -60px; top: 520px; }
.f3 > div { animation-duration: 11s; animation-direction: alternate-reverse; }

/* ---------- Marquee ---------- */
.marquee { margin: 28px -16px 0; overflow: hidden; padding-block: 10px; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.track { display: flex; gap: 10px; width: max-content; will-change: translate; }
.marquee.rev .track { margin-left: -480px; }
.track span { padding: 10px 16px; border-radius: 999px; --r: 999px; --blur: 10px; font: 500 .9rem/1 var(--font-body); white-space: nowrap; }
.track span.hl { color: var(--accent); }

/* ---------- Sections ---------- */
section.block { position: relative; padding-block: 72px 8px; display: grid; gap: 22px; }
.kicker { font: 500 .78rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: .12em; color: var(--accent); }
h2 { font: 800 clamp(2rem, 5vw, 3.2rem)/1 var(--font-display); letter-spacing: -.035em; margin: 6px 0 0; text-wrap: balance; }
h3 { font: 600 1.08rem/1.3 var(--font-body); margin: 0; }
p { margin: 0; max-width: 62ch; }
.muted { color: var(--muted); }
.head { display: grid; gap: 4px; }

.about { padding: 28px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; }
.skills { display: grid; gap: 14px; margin: 0; }
.skills dt { font: 500 .75rem/1 var(--font-mono); color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 8px; }
.skills dd { margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font: 400 .85rem/1 var(--font-body); padding: 7px 11px; border-radius: 999px; background: var(--glass-strong); box-shadow: inset 0 1px 0 var(--hi); }
.chip.hl { color: var(--accent); font-weight: 500; }

/* Timeline with a line that fills as you scroll */
.timeline { position: relative; display: grid; gap: 18px; padding-left: 34px; }
.rail { position: absolute; left: 9px; top: 8px; bottom: 8px; width: 2px; border-radius: 2px; background: var(--edge); overflow: hidden; }
.rail i { position: absolute; inset: 0; background: linear-gradient(var(--accent), var(--orb-3)); transform-origin: top; transform: scaleY(var(--fill, 0)); }
.job { padding: 22px 24px; display: grid; gap: 8px; }
.job::marker { content: none; }
.dot { position: absolute; left: -32px; top: 28px; width: 14px; height: 14px; border-radius: 50%; background: var(--bg); border: 2px solid var(--accent); box-shadow: 0 0 0 4px var(--glass); }
.job-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 16px; align-items: baseline; }
.when { font: 400 .82rem/1.5 var(--font-mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.org { color: var(--muted); font-size: .95rem; }
.now { color: var(--accent); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.tags span { font: 400 .75rem/1 var(--font-mono); padding: 5px 8px; border-radius: 6px; background: var(--glass-strong); color: var(--muted); }

/* Project */
.project { padding: 30px; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 30px; align-items: center;
  transform: perspective(1200px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); transition: transform .3s ease-out; }
.project h3 { font: 800 2.2rem/1 var(--font-display); letter-spacing: -.03em; }
.project-text { display: grid; gap: 14px; min-width: 0; }
.project ul { margin: 0; padding-left: 1.1em; display: grid; gap: 4px; }
.project li::marker { color: var(--accent); }
.pfacts { display: flex; flex-wrap: wrap; gap: 14px; font: 400 .8rem/1.4 var(--font-mono); color: var(--muted); }
.pfacts b { color: var(--fg); font-weight: 500; }
/* a small live preview of the TimIt popup */
.popup { padding: 18px; display: grid; gap: 12px; --r: 18px; --blur: 10px; background: var(--glass-strong); min-width: 0; }
.popup-top { display: flex; justify-content: space-between; align-items: center; font: 500 .75rem/1 var(--font-mono); color: var(--muted); }
.timer { font: 600 2.4rem/1 var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.task { display: flex; gap: 8px; align-items: center; font-size: .9rem; }
.swatch { width: 10px; height: 10px; border-radius: 3px; background: var(--accent); flex: none; }
.stop { justify-self: start; border: 0; border-radius: 999px; padding: 9px 16px; background: var(--fg); color: var(--bg); font: 500 .85rem/1 var(--font-body); cursor: pointer; }
.mini-row { display: flex; justify-content: space-between; font: 400 .8rem/1.4 var(--font-mono); color: var(--muted); border-top: 1px solid var(--edge); padding-top: 8px; font-variant-numeric: tabular-nums; }

/* Education */
.edu { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.edu .glass { padding: 20px; display: grid; gap: 6px; align-content: start; }
.certs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.cert { padding: 16px; display: grid; gap: 4px; align-content: start; --r: 16px; }
.cert h3 { font-size: .95rem; }

/* Contact */
.contact { padding: 34px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; align-items: center; }
.contact h2 { font-size: clamp(2.2rem, 6vw, 3.8rem); }
.contact-list { display: grid; gap: 12px; margin: 0; }
.contact-list div { display: grid; grid-template-columns: 84px minmax(0, 1fr); gap: 12px; }
.contact-list dt { font: 500 .78rem/1.7 var(--font-mono); color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.contact-list dd { margin: 0; overflow-wrap: anywhere; }
.copy { margin-left: 8px; border: 0; border-radius: 999px; padding: 4px 10px; font: 500 .75rem/1.2 var(--font-mono); color: var(--fg); background: var(--glass-strong); cursor: pointer; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 30; padding: 10px 14px; border-radius: 10px; background: var(--fg); color: var(--bg); }
.skip:focus { left: 16px; }
.notfound { min-height: 70vh; display: grid; align-content: center; gap: 18px; padding-top: 120px; }

/* ---------- Life: parallax mountains ---------- */
.peaks { position: relative; margin: 0 -16px; height: clamp(360px, 62vh, 560px); overflow: hidden; border-radius: 0 0 32px 32px; }
.peaks svg { position: absolute; left: 0; bottom: 0; width: 100%; height: 100%; }
.sky { fill: url(#skyGrad); }
.layer { will-change: translate; }
.far { fill: var(--m-far); }
.mid { fill: var(--m-mid); }
.near { fill: var(--m-near); }
.snow { fill: var(--snow); opacity: .9; }
.star { fill: var(--star); animation: twinkle 3s ease-in-out infinite alternate; }
.star.d1 { animation-delay: .4s; } .star.d2 { animation-delay: .8s; } .star.d3 { animation-delay: 1.2s; } .star.d4 { animation-delay: 1.6s; } .star.d5 { animation-delay: 2s; }
.sky-top { stop-color: var(--sky-top); } .sky-bottom { stop-color: var(--sky-bottom); }
@keyframes twinkle { to { opacity: .25; } }
.peak-label { fill: var(--fg); font: 500 13px var(--font-mono); }
.peak-sub { fill: var(--muted); font: 400 12px var(--font-mono); }
.peak-tick { stroke: var(--fg); stroke-width: 1; opacity: .6; }
.peaks-title { position: absolute; left: 50%; bottom: 36px; transform: translateX(-50%); width: min(560px, calc(100% - 32px)); padding: 24px 28px; text-align: left; display: grid; gap: 10px; }
.peaks-title h1 { margin: 0; font: 800 clamp(2.6rem, 9vw, 4.6rem)/.9 var(--font-display); letter-spacing: -.05em; }

.life-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
.card { padding: 24px; display: grid; gap: 10px; align-content: start; }
.trip { padding: 0; overflow: hidden; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.trip-body { padding: 28px; display: grid; gap: 12px; align-content: center; }
.trip-body h3 { font: 800 1.9rem/1 var(--font-display); letter-spacing: -.03em; }
.alt { display: grid; gap: 8px; padding: 22px 26px; align-content: center; font: 400 .85rem/1.4 var(--font-mono); background: var(--glass); border-left: 1px solid var(--edge); }
.alt-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center; }
.alt-bar { grid-column: 1 / -1; height: 6px; border-radius: 3px; background: var(--glass-strong); overflow: hidden; }
.alt-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--orb-3)); border-radius: 3px; }
.alt-row b { font-weight: 500; font-variant-numeric: tabular-nums; }
.alt-row.mine { color: var(--accent); }
.w-100 { width: 100%; } .w-80 { width: 80%; } .w-60 { width: 60%; }
.placeholder { border: 1px dashed var(--edge); border-radius: var(--r); padding: 20px 24px; color: var(--muted); }

footer { margin-top: 80px; padding: 18px 22px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; font: 400 .8rem/1.5 var(--font-mono); color: var(--muted); --r: 18px; }

/* Drift: content moves a little slower or faster than the scroll, set per element in data-drift */
[data-drift] { will-change: translate; }

@media (max-width: 760px) {
  .hero { padding-top: 104px; }
  :root { --blur: 16px; }
  .hero-grid, .about, .project, .contact, .life-grid, .trip { grid-template-columns: minmax(0, 1fr); }
  .edu { grid-template-columns: minmax(0, 1fr); }
  .certs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .alt { border-left: 0; border-top: 1px solid var(--edge); }
  .intro, .about, .project, .contact, .trip-body, .card { padding: 20px; }
  .brand { display: none; }
  .f2, .f3 { display: none; }
  .f1 { right: -30px; top: 10px; }
  .name .l2 { padding-left: .3em; }
}
@media (max-width: 420px) { .certs { grid-template-columns: minmax(0, 1fr); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}
.sr-svg { position: absolute; }