/* Eyeconic — core design system */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght,SOFT@0,9..144,300..700,0..100;1,9..144,300..700,0..100&family=Instrument+Sans:ital,wght@0,400..700;1,400..700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* depth */
  --abyss:      #03132B;
  --abyss-2:    #020A1B;
  --ocean:      #061A33;
  --ocean-2:    #0A2240;
  --ocean-3:    #11335B;
  --brine:      #2B5A7A;

  /* iris */
  --iris:       #00B7E0;
  --iris-glow:  #00E0FF;
  --iris-deep:  #0066A8;

  /* amber (use sparingly) */
  --amber:      #E8B547;
  --amber-soft: #C99232;

  /* pearl text */
  --pearl:      #F4EDE0;
  --pearl-2:    #C7C3B8;
  --pearl-3:    #8C8A82;
  --pearl-4:    #4F5358;

  /* rare states */
  --danger:     #E0524E;
  --ok:         #6EE8A5;

  /* type */
  --display:    'Fraunces', ui-serif, Georgia, serif;
  --sans:       'Instrument Sans', ui-sans-serif, system-ui, sans-serif;
  --mono:       'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;

  /* spacing (8-unit) */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;
  --sp-10: 144px;
  --sp-11: 192px;

  /* layout */
  --gutter: clamp(20px, 4vw, 56px);
  --max-w:  1380px;
  --rail:   1px solid color-mix(in srgb, var(--pearl) 8%, transparent);

  /* radii */
  --r-1: 2px;
  --r-2: 4px;
  --r-3: 8px;

  /* easings */
  --ease-1: cubic-bezier(.2, .65, .25, 1);
  --ease-out-soft: cubic-bezier(.16, 1, .3, 1);
  --ease-in-deep: cubic-bezier(.65, 0, .35, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
*::selection { background: var(--iris-glow); color: var(--abyss); }

html, body {
  background: var(--abyss);
  color: var(--pearl);
  font-family: var(--sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100%;
  overflow-x: hidden;
}

body {
  position: relative;
  background:
    radial-gradient(80vw 50vh at 50% -10vh, color-mix(in srgb, var(--iris-deep) 18%, transparent), transparent 70%),
    radial-gradient(60vw 40vh at 100% 110%, color-mix(in srgb, var(--ocean-3) 35%, transparent), transparent 70%),
    var(--abyss);
}

img, svg, canvas, video { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

button, input, textarea, select {
  font: inherit; color: inherit; background: transparent; border: 0;
}
button { cursor: pointer; }

/* type primitives */
.display {
  font-family: var(--display);
  font-weight: 350;
  font-variation-settings: 'opsz' 144, 'SOFT' 30, 'WONK' 0;
  letter-spacing: -0.02em;
  line-height: 0.96;
}
.display em, .display i {
  font-style: italic;
  font-variation-settings: 'opsz' 144, 'SOFT' 100, 'WONK' 1;
  color: var(--iris-glow);
}
.eyebrow {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pearl-3);
  font-weight: 500;
}
.eyebrow .dot {
  display: inline-block;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--iris); margin-right: 10px;
  box-shadow: 0 0 12px var(--iris-glow);
  vertical-align: middle;
}
.kicker {
  font-family: var(--display);
  font-style: italic;
  font-variation-settings: 'opsz' 96, 'SOFT' 100;
  color: var(--pearl-2);
  font-weight: 350;
  letter-spacing: -0.005em;
}
.mono { font-family: var(--mono); }
.muted { color: var(--pearl-3); }
.iris-text { color: var(--iris-glow); }
.amber-text { color: var(--amber); }

/* layout */
.shell {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  position: relative;
}

/* page background canvas */
.ocean-bg {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  opacity: 0.55;
  pointer-events: none;
  filter: blur(0.4px);
}

/* film grain */
.grain {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.045;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='1.2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.7 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  mix-blend-mode: overlay;
}

/* nav */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: 64px;
  display: flex; align-items: center;
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  background: linear-gradient(180deg, color-mix(in srgb, var(--abyss-2) 78%, transparent), color-mix(in srgb, var(--abyss-2) 30%, transparent));
  border-bottom: var(--rail);
}
.nav .shell { display: flex; align-items: center; gap: var(--sp-6); }
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--display);
  font-style: italic;
  font-variation-settings: 'opsz' 24, 'SOFT' 80;
  font-weight: 450;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--pearl);
  position: relative;
}
.brand .mark {
  width: 22px; height: 22px;
  position: relative;
  display: inline-block;
}
.brand .mark svg { width: 100%; height: 100%; overflow: visible; }
.brand .mark .iris-r {
  fill: var(--iris-glow);
  filter: drop-shadow(0 0 8px var(--iris));
  transform-origin: 50% 50%;
  animation: pulse 4.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(0.9); }
}

.nav-links {
  display: flex; gap: var(--sp-6);
  margin-left: auto;
  font-size: 13px;
  letter-spacing: 0.02em;
}
.nav-links a {
  color: var(--pearl-2);
  position: relative;
  padding: 4px 0;
  transition: color .25s var(--ease-1);
}
.nav-links a:hover,
.nav-links a.is-active {
  color: var(--pearl);
}
.nav-links a::after {
  content: '';
  position: absolute; left: 0; bottom: -2px;
  width: 100%; height: 1px;
  background: var(--iris-glow);
  transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease-out-soft);
}
.nav-links a:hover::after,
.nav-links a.is-active::after { transform: scaleX(1); }

.nav-cta {
  margin-left: var(--sp-5);
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px;
  border: 1px solid color-mix(in srgb, var(--iris) 60%, transparent);
  border-radius: 999px;
  color: var(--pearl);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  background: linear-gradient(180deg, color-mix(in srgb, var(--iris) 20%, transparent), color-mix(in srgb, var(--iris) 5%, transparent));
  transition: all .25s var(--ease-1);
}
.nav-cta:hover {
  background: linear-gradient(180deg, color-mix(in srgb, var(--iris) 35%, transparent), color-mix(in srgb, var(--iris) 12%, transparent));
  border-color: var(--iris-glow);
  box-shadow: 0 0 30px -8px var(--iris);
}
.nav-cta .arrow { display: inline-block; transition: transform .3s var(--ease-1); }
.nav-cta:hover .arrow { transform: translateX(3px); }

.nav-burger { display: none; }

@media (max-width: 820px) {
  .nav-links, .nav-cta { display: none; }
  .nav-burger {
    margin-left: auto;
    display: flex; flex-direction: column; gap: 4px;
    padding: 10px;
  }
  .nav-burger span {
    display: block; width: 22px; height: 1.5px;
    background: var(--pearl);
  }
  .nav.is-open {
    height: auto; flex-direction: column; align-items: stretch;
  }
  .nav.is-open .nav-links,
  .nav.is-open .nav-cta {
    display: flex;
    flex-direction: column;
    padding: var(--sp-4) var(--gutter);
    background: var(--abyss-2);
    border-top: var(--rail);
    margin: 0;
    width: 100%;
  }
  .nav.is-open .nav-cta { width: max-content; margin: var(--sp-3) var(--gutter); }
}

/* footer */
.footer {
  position: relative;
  padding: var(--sp-9) var(--gutter) var(--sp-7);
  border-top: var(--rail);
  background: linear-gradient(180deg, transparent, var(--abyss-2) 70%);
  margin-top: var(--sp-10);
}
.footer .shell {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--sp-6);
}
.footer h4 {
  font-family: var(--mono); font-size: 11.5px;
  font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.18em;
  color: var(--pearl-3); margin-bottom: var(--sp-4);
}
.footer ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer ul a {
  color: var(--pearl-2);
  font-size: 14px;
  transition: color .2s var(--ease-1);
}
.footer ul a:hover { color: var(--iris-glow); }
.footer .signature {
  font-family: var(--display);
  font-style: italic;
  font-size: 28px;
  line-height: 1.2;
  color: var(--pearl);
  font-variation-settings: 'opsz' 72, 'SOFT' 80;
  margin-bottom: var(--sp-4);
  max-width: 360px;
}
.footer .signature em { color: var(--iris-glow); }
.footer-bottom {
  margin-top: var(--sp-7);
  padding-top: var(--sp-4);
  border-top: var(--rail);
  display: flex; justify-content: space-between; gap: var(--sp-4);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--pearl-3);
  letter-spacing: 0.06em;
}
.depth-meter {
  display: flex; align-items: center; gap: 8px;
}
.depth-meter::before {
  content: ''; width: 80px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--iris));
}
@media (max-width: 760px) {
  .footer .shell { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--sp-3); }
}

/* common buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  font-size: 13.5px;
  letter-spacing: 0.04em;
  border-radius: 999px;
  transition: all .3s var(--ease-1);
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--iris);
  color: var(--abyss);
  font-weight: 600;
  box-shadow: 0 12px 40px -10px color-mix(in srgb, var(--iris) 80%, transparent);
}
.btn-primary:hover {
  background: var(--iris-glow);
  transform: translateY(-1px);
  box-shadow: 0 20px 50px -10px color-mix(in srgb, var(--iris-glow) 80%, transparent);
}
.btn-ghost {
  border: 1px solid color-mix(in srgb, var(--pearl) 20%, transparent);
  color: var(--pearl);
}
.btn-ghost:hover {
  border-color: var(--iris-glow);
  color: var(--iris-glow);
}
.btn .arrow { transition: transform .3s var(--ease-1); }
.btn:hover .arrow { transform: translateX(4px); }

/* eye component (shared sizing controlled per-page) */
.eye {
  position: relative;
  display: block;
  overflow: visible;
}
.eye svg { overflow: visible; }
.eye .iris-group { transition: transform .12s var(--ease-1); will-change: transform; }
.eye .pupil { transition: r .35s var(--ease-1), fill .35s var(--ease-1); }

/* scroll reveal */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition:
    opacity .9s var(--ease-out-soft),
    transform .9s var(--ease-out-soft);
}
.reveal.in {
  opacity: 1; transform: none;
}
.reveal.delay-1 { transition-delay: .08s; }
.reveal.delay-2 { transition-delay: .16s; }
.reveal.delay-3 { transition-delay: .24s; }
.reveal.delay-4 { transition-delay: .32s; }
.reveal.delay-5 { transition-delay: .4s; }
.reveal.delay-6 { transition-delay: .48s; }

/* divider */
.divider {
  display: flex; align-items: center; gap: var(--sp-4);
  margin: var(--sp-8) 0;
}
.divider::before,
.divider::after {
  content: ''; flex: 1; height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--pearl) 16%, transparent), transparent);
}
.divider .mark-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--iris-glow);
  box-shadow: 0 0 10px var(--iris);
}

/* custom cursor */
.cursor {
  position: fixed; left: 0; top: 0; z-index: 9999;
  width: 28px; height: 28px;
  pointer-events: none;
  mix-blend-mode: difference;
  transform: translate(-50%, -50%);
  transition: width .18s var(--ease-1), height .18s var(--ease-1), opacity .15s;
  opacity: 0;
}
.cursor .ring {
  position: absolute; inset: 0;
  border: 1px solid var(--pearl);
  border-radius: 50%;
  transition: all .25s var(--ease-1);
}
.cursor .dot {
  position: absolute; left: 50%; top: 50%;
  width: 4px; height: 4px;
  background: var(--pearl);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: all .2s var(--ease-1);
}
.cursor.live { opacity: 1; }
.cursor.hover { width: 48px; height: 48px; }
.cursor.hover .dot { width: 6px; height: 6px; }
@media (pointer: coarse), (hover: none) {
  .cursor { display: none; }
}

/* small ui */
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 11px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--pearl-2);
  border: 1px solid color-mix(in srgb, var(--pearl) 12%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--ocean-2) 60%, transparent);
}
.tag .pulse {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--iris-glow);
  animation: ping 1.6s ease-in-out infinite;
}
@keyframes ping {
  0%, 100% { box-shadow: 0 0 0 0 var(--iris-glow); }
  50%      { box-shadow: 0 0 0 4px transparent; }
}

/* generic card */
.card {
  background: linear-gradient(180deg, color-mix(in srgb, var(--ocean-2) 65%, transparent), color-mix(in srgb, var(--ocean) 75%, transparent));
  border: 1px solid color-mix(in srgb, var(--pearl) 8%, transparent);
  border-radius: 14px;
  padding: var(--sp-6);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 80% at 100% 0%, color-mix(in srgb, var(--iris) 12%, transparent), transparent 60%);
  pointer-events: none;
}

/* skip link */
.skip { position: absolute; left: -9999px; top: 0; }
.skip:focus { left: var(--sp-4); top: var(--sp-4); padding: 8px 12px; background: var(--iris); color: var(--abyss); z-index: 1000; }

/* form elements (manifesto / contact) */
.field {
  display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--sp-4);
}
.field label {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--pearl-3);
}
.field input,
.field textarea {
  padding: 12px 14px;
  background: color-mix(in srgb, var(--ocean-2) 80%, transparent);
  border: 1px solid color-mix(in srgb, var(--pearl) 10%, transparent);
  border-radius: 6px;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--pearl);
  transition: border-color .2s var(--ease-1), background .2s;
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--iris-glow);
  background: color-mix(in srgb, var(--ocean) 90%, transparent);
}
.field textarea { min-height: 110px; resize: vertical; }

/* page wrapper for proper spacing under fixed nav */
main { padding-top: 64px; }