/* ============================================================
   Conus Vision — one stage, one cone, coloured light.
   Single screen, no scroll.
   ============================================================ */

:root {
  --bg: #050507;
  --fg: #f1efe9;
  --fg-soft: #c9c6bf;
  --muted: #8a8884;
  --line: rgba(241, 239, 233, 0.14);
  --line-strong: rgba(241, 239, 233, 0.32);
  --accent: #d9d4c8;                  /* driven by JS to follow the light */
  --pad: clamp(1.1rem, 3.2vw, 3rem);
  --font-display: "Syne", "Manrope", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --glass: rgba(5, 5, 7, 0.42);
  --glass-strong: rgba(5, 5, 7, 0.6);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; }
html { background: var(--bg); -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  overflow: hidden;                    /* one screen */
  -webkit-font-smoothing: antialiased;
  -webkit-user-select: none;
  user-select: none;
}
@media (max-height: 520px) { body { overflow: auto; } }

::selection { background: var(--accent); color: #050507; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
p, h2, h3 { margin: 0; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; -webkit-appearance: none; appearance: none; }
[hidden] { display: none !important; }

/* ---------- stage ---------- */
#scene {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
  touch-action: none;
}
.is-dragging #scene { cursor: grabbing; }
.no-webgl #scene { display: none; }

.fallback {
  display: none;
  position: fixed; inset: 0; z-index: 0;
  background:
    radial-gradient(45% 60% at 50% 42%, rgba(255, 250, 240, 0.16), transparent 70%),
    radial-gradient(120% 90% at 50% 50%, #121216, #050507);
}
.fallback::after {
  content: "";
  position: absolute; left: 50%; top: 46%;
  width: min(40vmin, 360px); height: min(50vmin, 440px);
  transform: translate(-50%, -50%);
  background: linear-gradient(100deg, #f1efe9 20%, #6a6862 55%, #1a1a1e);
  clip-path: polygon(50% 0%, 96% 100%, 4% 100%);
}
.no-webgl .fallback { display: block; }

/* every UI block floats over the stage */
.top, .front, .stack, .bottom { position: fixed; z-index: 5; }

/* ---------- top ---------- */
.top {
  left: var(--pad); right: var(--pad); top: calc(var(--pad) * 0.8);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.brand { display: block; color: var(--fg); line-height: 0; }
.brand-logo { height: clamp(1.85rem, 3.1vw, 2.75rem); width: auto; aspect-ratio: 531 / 92.9; display: block; overflow: visible; }
.brand-mark { transform-box: fill-box; transform-origin: 50% 50%; transition: transform 0.2s linear; will-change: transform; }

.site-nav { display: flex; gap: clamp(1rem, 2.2vw, 2.1rem); }
.nav-btn {
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-soft);
  display: inline-flex;
  align-items: baseline;
  gap: 0.5em;
  padding: 0.4em 0;
  position: relative;
  transition: color 0.3s;
}
.nav-btn::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.35s cubic-bezier(.2,.7,.2,1), background 0.4s;
}
.nav-btn:hover, .nav-btn:focus-visible, .nav-btn.is-active, .nav-btn[aria-expanded="true"] { color: var(--fg); outline: none; }
.nav-btn:hover::after, .nav-btn:focus-visible::after, .nav-btn.is-active::after, .nav-btn[aria-expanded="true"]::after { transform: scaleX(1); }

/* ---------- text in front of the cone ---------- */
.front {
  left: 57%; top: 47%;
  width: min(36vw, 30rem);
  transform: translateY(-50%) translateY(6px);
  pointer-events: none;
  opacity: 0;
  filter: blur(14px);
  transition: opacity 0.7s ease, filter 0.7s ease, transform 0.7s cubic-bezier(.2,.7,.2,1);
}
.front.on { opacity: 1; filter: blur(0); transform: translateY(-50%); }
.front-line {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.4vw, 2.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: balance;
  text-shadow: 0 2px 30px rgba(5, 5, 7, 0.7);
}
.front-sub {
  margin-top: 0.9rem;
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  color: var(--fg-soft);
  max-width: 24rem;
  text-shadow: 0 1px 18px rgba(5, 5, 7, 0.8);
}

/* ---------- the stack: a popup above the three buttons ---------- */
.stack {
  left: 50%; bottom: calc(var(--pad) + 3.2rem);
  transform: translateX(-50%);
  width: min(92vw, 52rem);
  display: flex; flex-direction: column; align-items: stretch; gap: 0.7rem;
}

/* ---------- three directions (centred, glass cards like v1) ---------- */
.dirs {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.7rem;
}
.dir {
  display: flex; flex-direction: column; align-items: flex-start; gap: 0.45rem;
  text-align: left;
  padding: 1rem 1.2rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 0 0 1.2rem 0;
  background: var(--glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  color: var(--fg-soft);
  position: relative;
  overflow: hidden;
  transition: color 0.3s, border-color 0.35s, transform 0.4s cubic-bezier(.2,.7,.2,1), background 0.35s;
}
.dir::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(70% 60% at 100% 0%, var(--accent), transparent 70%);
  opacity: 0; transition: opacity 0.4s; pointer-events: none;
}
.dir-name { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; line-height: 1.1; letter-spacing: -0.01em; position: relative; }
.dir-go {
  font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); white-space: nowrap;
  display: block; position: relative; transition: color 0.3s;
}
.dir:hover, .dir:focus-visible, .dir.is-active, .dir[aria-expanded="true"] { color: var(--fg); border-color: var(--accent); transform: translateY(-4px); background: rgba(5, 5, 7, 0.55); outline: none; }
.dir:hover::before, .dir:focus-visible::before, .dir.is-active::before, .dir[aria-expanded="true"]::before { opacity: 0.16; }
.dir:hover .dir-go, .dir.is-active .dir-go, .dir[aria-expanded="true"] .dir-go { color: var(--fg); }
.dir[aria-expanded="true"] { transform: none; }

/* ---------- popups ---------- */
.pop {
  border: 1px solid var(--line);
  border-radius: 1.2rem 0 0 0;
  background: var(--glass-strong);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  color: var(--fg-soft);
  padding: 1.1rem 1.4rem 1.3rem;
  position: relative;
  opacity: 0;
  filter: blur(10px);
  transform: translateY(10px);
  transition: opacity 0.4s ease, filter 0.4s ease, transform 0.45s cubic-bezier(.2,.7,.2,1), border-color 0.4s;
  -webkit-user-select: text;
  user-select: text;
  outline: none;
}
.pop.is-open { opacity: 1; filter: blur(0); transform: none; border-color: var(--line-strong); }
.pop::before {
  content: "";
  position: absolute; inset: 0; border-radius: inherit;
  background: radial-gradient(60% 50% at 0% 0%, var(--accent), transparent 70%);
  opacity: 0.1; pointer-events: none;
}
.pop-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 0.9rem; position: relative; }
.pop-title { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em; color: var(--fg); display: flex; align-items: baseline; flex-wrap: wrap; }
.pop-gloss { font-family: var(--font-body); font-weight: 300; font-size: 0.9rem; letter-spacing: 0.02em; color: var(--muted); }
.pop-gloss::before { content: "/"; margin: 0 0.6em; opacity: 0.55; }
.pop-close {
  width: 2rem; height: 2rem; align-self: center;
  border: 1px solid var(--line); border-radius: 50%;
  color: var(--muted); font-size: 1.2rem; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
  transition: color 0.3s, border-color 0.3s, transform 0.3s;
}
.pop-close:hover, .pop-close:focus-visible { color: var(--fg); border-color: var(--accent); transform: rotate(90deg); outline: none; }

.pop-body {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 0.4rem 2rem;
  max-height: min(56vh, calc(100vh - 30rem));
  overflow: auto; overscroll-behavior: contain;
  scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent;
  position: relative;
}
.pop-body--one { grid-template-columns: 1fr; }
.pop-list li + li { margin-top: 0.25rem; }
.pop-item {
  display: block; width: 100%; text-align: left;
  padding: 0.45rem 0.6rem 0.5rem; margin-left: -0.6rem;
  border-radius: 0.4rem;
  color: var(--fg-soft);
  transition: color 0.3s, background 0.3s;
}
a.pop-item:hover, a.pop-item:focus-visible, button.pop-item:hover, button.pop-item:focus-visible { color: var(--fg); background: rgba(241, 239, 233, 0.05); outline: none; }
.pop-name { display: block; font-family: var(--font-display); font-weight: 700; font-size: 0.98rem; line-height: 1.2; letter-spacing: -0.005em; }
a.pop-item .pop-name::after, button.pop-item .pop-name::after {
  content: "→"; display: inline-block; margin-left: 0.45em; font-family: var(--font-body); font-weight: 400;
  color: var(--muted); transition: transform 0.3s, color 0.3s;
}
button.pop-item .pop-name::after { content: "▶"; font-size: 0.6em; vertical-align: 0.15em; }
a.pop-item:hover .pop-name::after, button.pop-item:hover .pop-name::after { transform: translateX(0.25em); color: var(--accent); }
.pop-desc { display: block; font-size: 0.74rem; line-height: 1.45; color: var(--muted); margin-top: 0.15rem; transition: color 0.3s; }
a.pop-item:hover .pop-desc, button.pop-item:hover .pop-desc { color: var(--fg-soft); }
.pop-item.is-soon { color: var(--muted); }
.pop-item.is-soon .pop-name { color: var(--fg-soft); }
.pop-tag { display: block; text-transform: uppercase; letter-spacing: 0.18em; font-size: 0.58rem; color: var(--muted); margin-top: 0.35rem; }
.pop-list--grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 2rem; align-items: start; }
.pop-list--grid li + li { margin-top: 0; }
.pop-row { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 0.4rem 2rem; }
.pop-type .ch { opacity: 0; transition: opacity 0.35s ease; }
.pop-type .ch.on { opacity: 1; }
.pop-sub { font-size: 0.6rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--muted); margin: 0.9rem 0 0.35rem; }
.pop-list--oss .pop-desc { font-size: 0.7rem; }
.pop-aside { padding-top: 0.45rem; }
.pop-kicker { font-size: 0.6rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--accent); margin: 0 0 0.35rem; transition: color 0.4s; }
.pop-kicker + .pop-text + .pop-kicker { margin-top: 1rem; }
.pop-text { font-weight: 300; font-size: 0.82rem; line-height: 1.6; color: var(--fg-soft); text-wrap: pretty; }
.pop-text + .pop-text { margin-top: 0.7rem; }
.pop-text--foot { margin-top: 1rem; padding-top: 0.9rem; border-top: 1px solid var(--line); max-width: 44rem; }

/* ---------- contact form ---------- */
.cform { display: grid; grid-template-columns: 1fr 1fr; gap: 0.9rem 1.4rem; }
.cf-field { display: grid; gap: 0.35rem; }
.cf-field--wide { grid-column: 1 / -1; }
.cf-label { font-size: 0.6rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--muted); }
.cf-input {
  width: 100%;
  font: inherit; font-size: 0.9rem; color: var(--fg);
  background: transparent; border: 0; border-bottom: 1px solid var(--line-strong); border-radius: 0;
  padding: 0.35rem 0 0.45rem; outline: none; resize: vertical; min-height: 0;
  transition: border-color 0.3s;
  -webkit-user-select: text; user-select: text;
}
.cf-input::placeholder { color: rgba(138, 136, 132, 0.6); }
.cf-input:focus { border-color: var(--accent); }
.cf-input:user-invalid, .cform.is-checked .cf-input:invalid { border-color: rgba(255, 120, 110, 0.7); }
textarea.cf-input { line-height: 1.5; }
.cf-hp { position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.cf-row { grid-column: 1 / -1; display: flex; align-items: center; gap: 1.1rem; flex-wrap: wrap; margin-top: 0.2rem; }
.cf-submit {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 9rem; padding: 0.75em 1.8em;
  border: 1px solid var(--line-strong); border-radius: 0 0 0.9rem 0;
  font-size: 0.7rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--fg);
  transition: border-color 0.3s, color 0.3s, background 0.3s;
}
.cf-submit:hover, .cf-submit:focus-visible { border-color: var(--accent); background: rgba(241, 239, 233, 0.06); outline: none; }
.cf-submit:disabled { cursor: progress; }
.cf-submit-text { transition: opacity 0.25s; }
.cf-spin {
  position: absolute; left: 50%; top: 50%; width: 1.1rem; height: 1.1rem; margin: -0.55rem 0 0 -0.55rem;
  border: 1.5px solid rgba(241, 239, 233, 0.18); border-top-color: var(--accent); border-radius: 50%;
  opacity: 0; transition: opacity 0.25s;
}
.cf-submit.is-sending .cf-submit-text { opacity: 0.25; }
.cf-submit.is-sending .cf-spin { opacity: 1; animation: cf-spin 0.8s linear infinite; }
@keyframes cf-spin { to { transform: rotate(360deg); } }
.cf-msg { font-size: 0.78rem; color: var(--muted); min-height: 1.2em; flex: 1 1 12rem; }
.cf-msg.is-error { color: #ff9a90; }
.cf-msg.is-ok { color: var(--fg); }
.cf-note { grid-column: 1 / -1; font-size: 0.7rem; color: var(--muted); }
.cf-note a { color: var(--fg-soft); border-bottom: 1px solid var(--line); transition: color 0.3s, border-color 0.3s; }
.cf-note a:hover { color: var(--fg); border-color: var(--accent); }
.cform.is-sent .cf-field, .cform.is-sent .cf-submit { display: none; }
.cform.is-sent .cf-msg { font-size: 0.95rem; font-weight: 300; }

/* ---------- video lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 20;
  display: flex; align-items: center; justify-content: center;
  padding: var(--pad);
  background: rgba(5, 5, 7, 0.82);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  opacity: 0; transition: opacity 0.35s ease;
}
.lightbox.is-open { opacity: 1; }
.lightbox-box { position: relative; width: min(100%, 1100px, calc((100vh - 2 * var(--pad) - 4rem) * 16 / 9)); }
.lightbox-frame { position: relative; aspect-ratio: 16 / 9; background: #000; border: 1px solid var(--line-strong); overflow: hidden; }
.lightbox-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.lightbox-title { margin-top: 0.7rem; font-size: 0.62rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--muted); }
.lightbox-close {
  position: absolute; right: 0; top: -2.6rem; width: 2.1rem; height: 2.1rem;
  border: 1px solid var(--line-strong); border-radius: 50%;
  color: var(--fg-soft); font-size: 1.3rem; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
  transition: color 0.3s, border-color 0.3s, transform 0.3s;
}
.lightbox-close:hover, .lightbox-close:focus-visible { color: var(--fg); border-color: var(--accent); transform: rotate(90deg); outline: none; }

/* ---------- bottom (like v1: small details) ---------- */
.bottom {
  left: var(--pad); right: var(--pad); bottom: calc(var(--pad) * 0.8);
  display: flex; justify-content: center; align-items: center;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  font-size: 0.72rem; color: var(--muted); letter-spacing: 0.02em;
}
.foot-copy { display: inline-flex; align-items: center; gap: 0.9rem; }
.foot-mark { width: 1.35rem; height: 1.35rem; color: var(--fg-soft); }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .front { left: 60%; width: 34vw; }
  .front-line { font-size: clamp(1.3rem, 2.3vw, 2rem); }
  .dir-go { white-space: normal; }
}

@media (max-width: 760px) {
  .brand-logo { height: 1.65rem; }
  .site-nav { gap: 0.9rem; }
  .nav-btn { font-size: 0.6rem; letter-spacing: 0.14em; }

  .front {
    left: var(--pad); right: var(--pad); width: auto; top: auto; bottom: 13.4rem;
    transform: translateY(8px);
  }
  .front.on { transform: none; }
  .front-line { font-size: clamp(1.1rem, 5.2vw, 1.5rem); }
  .front-sub { margin-top: 0.5rem; font-size: 0.76rem; }

  .stack { width: calc(100vw - var(--pad) * 2); bottom: 5.6rem; gap: 0.5rem; }
  .dirs { grid-template-columns: repeat(3, 1fr); gap: 0.5rem; }
  .dir { padding: 0.7rem 0.6rem 0.65rem; gap: 0.3rem; }
  .dir:hover, .dir.is-active { transform: none; }
  .dir-name { font-size: 0.88rem; letter-spacing: -0.02em; }
  .dir-go { font-size: 0.5rem; letter-spacing: 0.08em; white-space: normal; }

  .pop { padding: 0.9rem 1rem 1rem; border-radius: 0.9rem 0 0 0; }
  .pop-title { font-size: 1rem; }
  .pop-body { grid-template-columns: 1fr; gap: 0.6rem; max-height: calc(100vh - 21rem); }
  .pop-aside { padding-top: 0.6rem; border-top: 1px solid var(--line); }
  .pop-text { font-size: 0.78rem; }
  .pop-list--grid { grid-template-columns: 1fr; gap: 0.25rem; }
  .pop-row { grid-template-columns: 1fr; gap: 0.6rem; }
  .pop-row .pop-aside { padding-top: 0.6rem; border-top: 1px solid var(--line); }
  .cform { grid-template-columns: 1fr; gap: 0.7rem; }
  .cf-submit { min-width: 0; width: 100%; }

  .lightbox { padding: 0.8rem; }
  .lightbox-close { top: -2.5rem; }

  .bottom { bottom: 0.9rem; font-size: 0.62rem; padding-top: 0.7rem; }
}