/* Emo. A dark 3D story that the page scrolls over, then warm paper sections.
   Type: Instrument Serif for display, Geist for text, Geist Mono for labels. */

:root {
  --paper: #f1ede6;
  --paper-2: #e8e2d8;
  --ink: #18150f;
  --ink-2: #5c554b;
  --rule: rgb(24 21 15 / 0.14);
  --night: #0c0f12;
  --night-2: #1b222a;
  --mist: #a7b4c0;
  --glow: #8fe3ff;

  --sight: #6ea2f0;
  --sound: #a68cf0;
  --smell: #5fc287;
  --speech: #eba25a;
  --touch: #ee7aa3;
  --temperature: #f07a5f;

  --serif: "Instrument Serif", "Times New Roman", serif;
  --sans: "Geist", "Segoe UI", system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, "Cascadia Mono", monospace;
  --pad: max(20px, 4.5vw);
  --ease: cubic-bezier(0.2, 0.7, 0.1, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--night); color: var(--ink); font: 400 17px/1.6 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
h1, h2, h3 { margin: 0; font-weight: 400; }
p { margin: 0; }
a { color: inherit; }
em { font-style: italic; }
img { max-width: 100%; height: auto; display: block; }
.mono { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; }
:focus-visible { outline: 2px solid var(--glow); outline-offset: 3px; }
.skip { position: absolute; left: -9999px; top: 10px; z-index: 99; background: #fff; color: #000; padding: 8px 14px; }
.skip:focus { left: 12px; }
.wrap { max-width: 1320px; margin: 0 auto; padding: 0 var(--pad); }

/* ---------- Top bar ---------- */
.bar {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; gap: 28px; height: 68px; padding: 0 var(--pad);
  color: var(--ink); transition: color 0.4s var(--ease), background-color 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.bar:not(.is-dark) { background: rgb(241 237 230 / 0.86); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom-color: var(--rule); }
.bar.is-dark { color: #eef3f7; }
.bar__brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.bar__brand .logo { width: 40px; height: 40px; }
.bar__word { font: 400 30px/1 var(--serif); letter-spacing: -0.01em; }
.bar__nav { display: flex; gap: 30px; margin-left: auto; }
.bar__nav a, .bar__cta { font: 400 12px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; text-decoration: none; opacity: 0.75; transition: opacity 0.2s; }
.bar__nav a:hover, .bar__cta:hover { opacity: 1; }
.bar__cta { opacity: 1; padding: 10px 14px; border: 1px solid currentColor; border-radius: 999px; }
@media (max-width: 860px) { .bar__nav { display: none; } .bar__cta { margin-left: auto; } }

/* ---------- Logo (inline SVG, animated) ---------- */
.logo .logo__head { fill: #15191e; }
.is-dark .logo .logo__head, .contact .logo .logo__head { stroke: rgb(255 255 255 / 0.22); stroke-width: 1.4; }
.logo .logo__eye { fill: var(--glow); transform-box: fill-box; transform-origin: center; animation: blink 6s infinite; }
.logo .o { fill: none; stroke: #15191e; stroke-linecap: round; }
.logo .w { fill: none; stroke: #fff; stroke-linecap: round; }
.logo .of { fill: #15191e; }
.logo .wf { fill: #fff; }
.logo .c { fill: none; stroke: #15191e; stroke-width: 1.4; stroke-linecap: round; }
.logo__arm { transition: transform 0.45s var(--ease); }
.logo__arm--l { transform-origin: 10px 35px; }
.logo__arm--r { transform-origin: 54px 35px; }
.bar__brand:hover .logo__arm--l, .logo--big:hover .logo__arm--l { transform: rotate(-7deg) translate(1px, -1px); }
.bar__brand:hover .logo__arm--r, .logo--big:hover .logo__arm--r { transform: rotate(7deg) translate(-1px, -1px); }
@keyframes blink { 0%, 92%, 100% { transform: scaleY(1); } 94% { transform: scaleY(0.08); } 96% { transform: scaleY(1); } }

/* ---------- The story ---------- */
.story { position: relative; background: var(--night); color: #eef3f7; }
.stage {
  position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden;
  background:
    radial-gradient(ellipse 46% 58% at 64% 46%, rgb(143 227 255 / 0.07), transparent 70%),
    radial-gradient(ellipse 70% 80% at 62% 40%, var(--night-2), var(--night) 72%);
}
@media (max-width: 860px) { .stage { background: radial-gradient(ellipse 90% 60% at 50% 30%, var(--night-2), var(--night) 75%); } }
#scene { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: grab; }
#scene:active { cursor: grabbing; }
#leaders { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
#leaders line { stroke: rgb(230 240 248 / 0.55); stroke-width: 1; }
#leaders circle { stroke: var(--night); stroke-width: 2; }
#tags { position: absolute; inset: 0; pointer-events: none; }
.tag {
  position: absolute; left: 0; top: 0; display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 12px 6px 10px; border-radius: 999px; border: 1px solid rgb(255 255 255 / 0.18);
  background: rgb(12 15 18 / 0.75); color: #eef3f7; font: 400 11px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase;
  white-space: nowrap; visibility: hidden; pointer-events: none;
}
.tag .dot, .panel__idx .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c); display: inline-block; flex: none; }
.status { position: absolute; inset: 0; display: grid; place-items: center; color: var(--mist); font: 400 12px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; }
.status[hidden] { display: none; }

.hud { position: absolute; inset: 0; pointer-events: none; color: var(--mist); }
.hud p { font: 400 11px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; }
.hud__tl { position: absolute; top: 86px; right: var(--pad); }
.hud__bl { position: absolute; left: var(--pad); bottom: 28px; width: min(320px, 60vw); transition: opacity 0.5s var(--ease); }
.stage.on-hero .hud__bl { opacity: 0; }
.hud__label { margin-bottom: 10px; color: #dce6ee; }
.hud__track { height: 1px; background: rgb(255 255 255 / 0.16); position: relative; }
.hud__track span { position: absolute; inset: 0 auto 0 0; width: 0; background: var(--glow); box-shadow: 0 0 10px var(--glow); }
.hud__br { position: absolute; right: var(--pad); bottom: 28px; }
.hud__dance { position: absolute; top: 112px; right: var(--pad); display: flex; flex-direction: column; align-items: flex-end; gap: 8px; pointer-events: auto; }
.dance-btn {
  appearance: none; display: inline-flex; align-items: center; gap: 10px; padding: 9px 14px; border-radius: 999px; cursor: pointer;
  border: 1px solid rgb(255 255 255 / 0.22); background: rgb(12 15 18 / 0.55); color: #e8f0f6;
  font: 400 11px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; transition: border-color 0.2s, background-color 0.2s;
}
.dance-btn:hover { border-color: var(--glow); }
.dance-btn[aria-pressed="true"] { border-color: var(--glow); background: rgb(143 227 255 / 0.12); }
.dance-btn[hidden] { display: none; }
.dance-btn__eq { display: inline-flex; align-items: flex-end; gap: 2px; height: 11px; }
.dance-btn__eq i { width: 2px; height: 4px; background: var(--glow); border-radius: 1px; }
.dance-btn[aria-pressed="true"] .dance-btn__eq i { animation: eq 0.9s ease-in-out infinite; }
.dance-btn[aria-pressed="true"] .dance-btn__eq i:nth-child(2) { animation-delay: -0.3s; }
.dance-btn[aria-pressed="true"] .dance-btn__eq i:nth-child(3) { animation-delay: -0.6s; }
@keyframes eq { 0%, 100% { height: 3px; } 50% { height: 11px; } }
.dance-status { font: 400 10.5px/1.3 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--mist); text-align: right; min-height: 1em; }
.hud__br[hidden] { display: none; }

.panels { position: relative; z-index: 2; margin-top: -100vh; margin-top: -100svh; pointer-events: none; }
.panel { min-height: 92vh; min-height: 92svh; display: flex; align-items: flex-start; padding: 0 var(--pad); }
.panel--hero { min-height: 100vh; min-height: 100svh; align-items: flex-end; padding-bottom: 96px; }
.panel--sense { min-height: 72vh; min-height: 72svh; }
/* each panel's text holds at mid-screen while its panel scrolls past, and fades between panels */
.panel__body {
  position: sticky; top: calc(50vh - 130px); top: calc(50svh - 130px);
  max-width: 430px; pointer-events: auto; opacity: 0; transform: translateY(26px);
  transition: opacity 0.6s var(--ease), transform 0.9s var(--ease);
}
.panel--hero .panel__body { position: relative; top: auto; }
.panel.is-active .panel__body { opacity: 1; transform: none; }
.panel__idx { display: flex; align-items: center; gap: 10px; color: var(--mist); margin-bottom: 18px; }
.panel h2 { font: 400 clamp(46px, 5.4vw, 76px)/0.98 var(--serif); letter-spacing: -0.01em; color: #fff; }
.panel__body > p:last-child { margin-top: 18px; font-size: 18px; color: #c4cfd8; max-width: 38ch; }

.hero { max-width: 660px; }
.hero__tag { display: inline-flex; align-items: center; gap: 10px; color: var(--mist); }
.hero__title { margin-top: 22px; font: 400 clamp(46px, 6.2vw, 94px)/0.96 var(--serif); letter-spacing: -0.015em; color: #fff; }
.hero__title em { color: var(--glow); }
.hero__lede { margin-top: 26px; font-size: 18px; color: #c4cfd8; max-width: 44ch; }
.scrollcue { display: inline-flex; align-items: center; gap: 14px; margin-top: 34px; color: #dce6ee; text-decoration: none; }
.scrollcue__line { width: 46px; height: 1px; background: rgb(255 255 255 / 0.25); position: relative; overflow: hidden; }
.scrollcue__line::after { content: ""; position: absolute; inset: 0; background: var(--glow); transform: translateX(-100%); animation: cue 2.2s var(--ease) infinite; }
@keyframes cue { 0% { transform: translateX(-100%); } 60%, 100% { transform: translateX(100%); } }
.live { width: 8px; height: 8px; border-radius: 50%; background: #3fd18f; box-shadow: 0 0 0 0 rgb(63 209 143 / 0.5); animation: live 2.4s infinite; display: inline-block; }
@keyframes live { 0% { box-shadow: 0 0 0 0 rgb(63 209 143 / 0.5); } 70% { box-shadow: 0 0 0 9px rgb(63 209 143 / 0); } 100% { box-shadow: 0 0 0 0 rgb(63 209 143 / 0); } }

@media (max-width: 860px) {
  .panel { align-items: flex-end; padding-bottom: 72px; }
  .panel--hero { padding-bottom: 84px; }
  .panel__body { top: auto; bottom: 64px; max-width: none; padding: 22px 0 0; background: linear-gradient(to top, rgb(12 15 18 / 0.92) 55%, rgb(12 15 18 / 0)); }
  .panel--hero .panel__body { background: linear-gradient(to top, rgb(12 15 18 / 0.95) 60%, rgb(12 15 18 / 0)); }
  .hud__tl { top: 80px; }
  .hud__bl, .hud__br { display: none; }
  .panel h2 { font-size: 46px; }
  .hero__title { font-size: 40px; margin-top: 16px; }
  .hero__lede { font-size: 16px; margin-top: 18px; }
  .scrollcue { margin-top: 24px; }
}

/* split headings: words rise into place */
[data-split] .sw-mask { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: 0.08em; margin-bottom: -0.08em; }
[data-split] .sw { display: inline-block; transform: translateY(105%); transition: transform 0.9s var(--ease); transition-delay: calc(var(--i) * 45ms); }
[data-split].is-in .sw { transform: none; }
[data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
[data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- Paper sections ---------- */
.paper { background: var(--paper); color: var(--ink); padding: 130px 0; }
.paper--alt { background: var(--paper-2); }
.sechead { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 0 40px; align-items: start; margin-bottom: 64px; }
.sechead__idx { color: var(--ink-2); padding-top: 14px; }
.sechead__title { font: 400 clamp(40px, 5vw, 74px)/1 var(--serif); letter-spacing: -0.015em; max-width: 16ch; }
.sechead__title em { color: #2b7f9c; }
.sechead__lede { grid-column: 2; margin-top: 24px; max-width: 48ch; font-size: 19px; color: var(--ink-2); }

.drawing { margin: 0; padding: 30px 0 22px; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.drawing img { width: 100%; mix-blend-mode: multiply; filter: contrast(1.05); }
.drawing figcaption { margin-top: 18px; color: var(--ink-2); }

.specs { margin: 56px 0 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--rule); }
.specs div { padding: 22px 22px 26px 0; border-bottom: 1px solid var(--rule); }
.specs div:not(:nth-child(4n)) { border-right: 1px solid var(--rule); }
.specs div:not(:nth-child(4n + 1)) { padding-left: 22px; }
.specs dt { color: var(--ink-2); }
.specs dd { margin: 10px 0 0; font: 400 26px/1.15 var(--serif); }

.uses { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.uses li {
  position: relative; display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 0 40px; align-items: baseline;
  padding: 26px 0; border-bottom: 1px solid var(--rule);
  font: 400 clamp(26px, 2.8vw, 40px)/1.15 var(--serif);
  transition: padding-left 0.5s var(--ease), color 0.3s;
}
.uses li .mono { color: var(--ink-2); }
.uses li::after {
  content: ""; position: absolute; left: 186px; top: 50%; width: 10px; height: 10px; margin-top: -5px; border-radius: 50%;
  background: var(--night); box-shadow: inset 0 0 0 3px var(--glow), 0 0 14px rgb(143 227 255 / 0.9); opacity: 0; transform: scale(0.4); transition: opacity 0.3s, transform 0.4s var(--ease);
}
.uses li:hover { padding-left: 14px; }
.uses li:hover::after { opacity: 1; transform: none; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--rule); }
.steps li { padding: 30px 30px 10px 0; position: relative; }
.steps li + li { padding-left: 30px; border-left: 1px solid var(--rule); }
.steps li::before { content: ""; position: absolute; top: -1px; left: 0; height: 2px; width: 0; background: var(--ink); transition: width 1.4s var(--ease) 0.3s; }
.steps li.is-done.is-in::before { width: 100%; }
.steps li.is-now.is-in::before { width: 45%; background: #2b7f9c; }
.steps .mono { display: inline-flex; align-items: center; gap: 10px; color: var(--ink-2); }
.steps h3 { margin: 16px 0 12px; font: 400 32px/1.08 var(--serif); }
.steps li p:last-child { color: var(--ink-2); max-width: 36ch; }

.founder { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 0 40px; }
.founder .sechead__idx { padding-top: 22px; }
.founder__name { font: 400 clamp(46px, 6.6vw, 104px)/0.98 var(--serif); letter-spacing: -0.02em; }
.founder__bio { margin-top: 30px; max-width: 54ch; font-size: 19px; color: var(--ink-2); }
.arrowlink { display: inline-flex; gap: 8px; margin-top: 28px; font: 400 13px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none; padding-bottom: 6px; background: linear-gradient(currentColor, currentColor) 0 100% / 100% 1px no-repeat; transition: background-size 0.4s var(--ease); }
.arrowlink:hover { background-size: 0 1px; background-position: 100% 100%; }
.arrowlink--light { color: #dce6ee; }

/* ---------- Contact ---------- */
.contact { background: var(--night); color: #eef3f7; padding: 130px 0 0; position: relative; overflow: hidden; }
.contact::before { content: ""; position: absolute; left: 50%; top: 40px; width: 900px; height: 600px; margin-left: -450px; background: radial-gradient(ellipse at center, rgb(143 227 255 / 0.09), transparent 65%); pointer-events: none; }
.contact__inner { position: relative; text-align: center; display: flex; flex-direction: column; align-items: center; }
.logo--big { width: 120px; height: 120px; margin-bottom: 34px; cursor: pointer; }
.contact__idx { color: var(--mist); }
.contact__title { margin-top: 18px; font: 400 clamp(40px, 5.2vw, 76px)/1 var(--serif); letter-spacing: -0.015em; max-width: 18ch; }
.contact__title em { color: var(--glow); }
.contact__mail {
  margin-top: 42px; font: 400 clamp(26px, 4.4vw, 60px)/1.1 var(--serif); color: #fff; text-decoration: none; overflow-wrap: anywhere;
  background: linear-gradient(var(--glow), var(--glow)) 0 100% / 0 2px no-repeat; padding-bottom: 6px; transition: background-size 0.6s var(--ease);
}
.contact__mail:hover { background-size: 100% 2px; }
.contact__links { display: flex; gap: 40px; margin-top: 44px; }
.contact__links .arrowlink { margin-top: 0; }
.foot { position: relative; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 120px; padding: 26px var(--pad); border-top: 1px solid rgb(255 255 255 / 0.08); color: var(--mist); }
.foot a { color: #dce6ee; text-decoration: none; }

@media (max-width: 860px) {
  .paper { padding: 90px 0; }
  .sechead, .founder { grid-template-columns: minmax(0, 1fr); }
  .sechead__idx { padding-top: 0; margin-bottom: 18px; }
  .sechead__lede { grid-column: 1; }
  .specs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .specs div { border-right: 0 !important; padding-left: 0 !important; }
  .specs div:nth-child(odd) { border-right: 1px solid var(--rule) !important; padding-right: 16px; }
  .specs div:nth-child(even) { padding-left: 16px !important; }
  .uses li { grid-template-columns: 52px minmax(0, 1fr); gap: 0 14px; }
  .uses li::after { display: none; }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .steps li, .steps li + li { padding: 26px 0 18px; border-left: 0; border-top: 1px solid var(--rule); }
  .drawing { overflow-x: auto; }
  .drawing img { min-width: 640px; }
}
@media (max-width: 520px) {
  .specs { grid-template-columns: minmax(0, 1fr); }
  .specs div:nth-child(odd) { border-right: 0 !important; padding-right: 0; }
  .specs div:nth-child(even) { padding-left: 0 !important; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  [data-reveal], [data-split] .sw, .panel__body { opacity: 1 !important; transform: none !important; }
}