/* =========================================================
   infium — landing page styles
   Warm paper background, serif display type with italic
   accents, bold brand colour, playful tilt — on an original
   layout built around infium's ∞ loop.
   ========================================================= */

:root {
  --paper: #fbfaf3;
  --paper-2: #f1efe4;
  --ink: #0b1533;
  --ink-2: #4a5270;
  --ink-3: #8a8fa3;
  --navy: #020b2d;
  --line: rgba(11, 21, 51, .12);

  --teal: #0af0d0;
  --teal-soft: #6ff2dc;
  --blue: #1a7bff;
  --blue-soft: #8dbcff;
  --ice: #d6f8f1;
  --sun: #ffd166;
  --coral: #ff7a59;
  --grad: linear-gradient(100deg, #0af0d0 0%, #12c8f0 45%, #1a7bff 100%);

  --radius: 24px;
  --container: 1180px;
  --serif: "Fraunces", Georgia, serif;
  --sans: "Manrope", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; margin: 0; padding: 0; }
p { margin: 0; }

h1, h2, h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 500;
  font-variation-settings: "opsz" 144;
  letter-spacing: -0.025em;
  line-height: 1;
  text-wrap: balance;
}
h1 em, h2 em, h3 em, .readout em, .footer-brand em { font-style: italic; font-weight: 400; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

.eyebrow {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 20px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 24px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  font-weight: 700;
  font-size: .95rem;
  line-height: 1;
  white-space: nowrap;
  transition: transform .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-2px) rotate(-1deg); }
.btn-sm { padding: 10px 16px; font-size: .875rem; }
.btn-primary {
  background: var(--ink);
  color: var(--paper);
  box-shadow: 4px 4px 0 var(--teal);
}
.btn-primary:hover { box-shadow: 6px 6px 0 var(--teal); }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 250, 243, .8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}
.brand img { height: 28px; width: auto; }
.nav-links { display: flex; gap: 28px; font-weight: 600; font-size: .95rem; color: var(--ink-2); }
.nav-links a:hover { color: var(--ink); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 96px 0 72px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 40px;
  align-items: center;
}
.hero h1 { font-size: clamp(3rem, 5.4vw, 4.9rem); }
.lead { margin-top: 28px; max-width: 32rem; font-size: 1.15rem; color: var(--ink-2); }
.hero-actions { margin-top: 36px; display: flex; gap: 12px; flex-wrap: wrap; }

/* Stage: loop + stickers */
.stage { position: relative; padding: 32px 0 48px; }
.loop { position: relative; }
.loop svg { width: 100%; height: auto; display: block; overflow: visible; }

.loop-track  { fill: none; stroke: rgba(11, 21, 51, .08); stroke-width: 14; }
.loop-stroke { fill: none; stroke: url(#loop-grad); stroke-width: 14; stroke-linecap: round; }
.loop-flow {
  fill: none;
  stroke: rgba(255, 255, 255, .7);
  stroke-width: 2;
  stroke-dasharray: 6 26;
  animation: flow 3s linear infinite;
}
@keyframes flow { to { stroke-dashoffset: -64; } }
.loop-idot { fill: var(--teal); }
.loop-light circle { fill: #fff; stroke: var(--blue); stroke-width: 3; }

.loop-labels text {
  font-family: var(--serif);
  font-style: italic;
  font-size: 22px;
  fill: var(--ink-3);
  transition: fill .3s ease;
}
.loop-labels text.is-on { fill: var(--ink); }

.readout {
  position: absolute;
  left: 50%;
  bottom: -16px;
  transform: translateX(-50%);
  padding: 8px 16px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--paper);
  font-size: .9rem;
  font-weight: 600;
  white-space: nowrap;
}
.readout em { font-family: var(--serif); font-size: 1.1rem; }

.sticker {
  position: absolute;
  padding: 8px 16px;
  border-radius: 999px;
  border: 2px solid var(--ink);
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.1rem;
  line-height: 1;
  box-shadow: 3px 3px 0 var(--ink);
  animation: float 6s ease-in-out infinite alternate;
}
.sticker.s1 { top: 6%;    left: -2%;  background: var(--teal-soft); transform: rotate(-8deg); }
.sticker.s2 { top: 2%;    right: -4%; background: var(--blue-soft); transform: rotate(6deg); animation-delay: -2s; }
.sticker.s3 { bottom: 4%; left: 2%;   background: var(--sun);       transform: rotate(5deg);  animation-delay: -4s; }
.sticker.s4 { bottom: 8%; right: 0;   background: var(--coral); color: #fff; transform: rotate(-6deg); animation-delay: -1s; }
@keyframes float { to { translate: 0 -8px; } }

/* ---------- Ticker ---------- */
.ticker {
  overflow: hidden;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  padding: 18px 0;
  background: var(--paper-2);
}
.ticker-track {
  display: flex;
  align-items: center;
  gap: 28px;
  width: max-content;
  animation: ticker 32s linear infinite;
}
.ticker span {
  font-family: var(--serif);
  font-style: italic;
  font-size: 2rem;
  white-space: nowrap;
}
.ticker i {
  font-style: normal;
  font-size: 2rem;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
@keyframes ticker { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
.section { padding: 128px 0; }
.section-tight { padding: 0 0 112px; }
.section-head { margin-bottom: 56px; }
.section-head-center { text-align: center; }
.section-head-center .section-lead { margin-inline: auto; }
h2 { font-size: clamp(2.4rem, 4.8vw, 3.8rem); }
.section-lead { margin-top: 20px; max-width: 34rem; font-size: 1.1rem; color: var(--ink-2); }

/* ---------- Bento ---------- */
.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 18px;
}
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 32px;
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
}
.card:hover { transform: translateY(-4px) rotate(-.4deg); box-shadow: 0 24px 40px -28px rgba(11, 21, 51, .5); }
.card-lg { grid-row: span 2; }
.card-wide { grid-column: span 2; flex-direction: row; align-items: flex-end; justify-content: space-between; gap: 32px; }

.card-navy { background: var(--navy); color: var(--paper); }
.card-teal { background: var(--teal-soft); }
.card-sun  { background: var(--sun); }
.card-blue { background: var(--blue-soft); }

.spotlight::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 50%), rgba(18, 200, 240, .25), transparent 60%);
  opacity: 0;
  transition: opacity .3s ease;
  pointer-events: none;
}
.spotlight:hover::before { opacity: 1; }

.card-media { margin: -32px -32px 0; aspect-ratio: 16 / 11; overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; }
.card-body { position: relative; display: grid; gap: 12px; }
.tag {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  opacity: .75;
}
.card h3 { font-size: 1.7rem; }
.card-body > p:not(.tag) { font-size: .98rem; opacity: .85; }

.chips { position: relative; display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.chips li {
  padding: 6px 12px;
  border: 1.5px solid currentColor;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 700;
}

.pipeline { position: relative; display: flex; align-items: center; flex-shrink: 0; font-weight: 700; font-size: .85rem; }
.pipeline li {
  padding: 10px 14px;
  border: 2px solid var(--ink);
  border-radius: 12px;
  background: var(--paper);
}
.pipeline li + li { margin-left: 24px; position: relative; }
.pipeline li + li::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 50%;
  width: 24px;
  height: 2px;
  background: var(--ink);
}
.pipeline li:last-child { background: var(--ink); color: var(--paper); }

/* ---------- Sheets (inset panels with a tilted sheet behind) ---------- */
/* Both sheets are negative-z pseudo-elements inside the section's own stacking
   context: ::before is the tilted back sheet, ::after the front one (painted later,
   so it sits on top of ::before but under the content). */
.sheet {
  position: relative;
  isolation: isolate;
  margin: 0 28px;
  padding: 120px 0;
  border-radius: 40px;
}
.sheet::before,
.sheet::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  z-index: -1;
}
.sheet::before { background: var(--sheet-back); transform: rotate(-1.6deg) translateY(6px); }
.sheet::after  { background: var(--sheet-front); }
.sheet-navy { --sheet-front: var(--navy); --sheet-back: var(--teal-soft); color: var(--paper); }
.sheet-navy .eyebrow { color: var(--teal); }
.sheet-navy .section-lead { color: rgba(251, 250, 243, .72); }
.sheet-teal { --sheet-front: var(--teal-soft); --sheet-back: var(--navy); }
.sheet + .section, .section + .sheet, .section-tight + .sheet { margin-top: 24px; }

/* ---------- AI ---------- */
.ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.layers-list { margin-top: 40px; display: grid; gap: 20px; }
.layers-list li { display: flex; gap: 20px; align-items: flex-start; }
.num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, .08);
  font-size: .8rem;
  font-weight: 700;
  color: var(--teal);
}
.layers-list strong { display: block; font-weight: 700; margin-bottom: 2px; }
.layers-list div > span { color: rgba(251, 250, 243, .72); font-size: .95rem; }

/* isometric slabs */
.stack { display: grid; justify-items: center; padding: 40px 0 20px; }
.slab {
  width: 68%;
  height: 78px;
  margin-top: -18px;
  border-radius: 18px;
  transform: rotateX(56deg) rotateZ(-40deg);
  box-shadow: 0 24px 40px -24px rgba(0, 0, 0, .8);
  display: grid;
  transition: transform .4s ease;
}
.slab span {
  justify-self: end;
  align-self: start;
  margin: 10px 14px 0 0;
  font-size: .75rem;
  font-weight: 700;
  color: var(--ink);
}
.slab[data-layer="4"] { background: var(--paper); }
.slab[data-layer="3"] { background: var(--sun); }
.slab[data-layer="2"] { background: var(--blue-soft); }
.slab[data-layer="1"] { background: var(--teal-soft); }
.stack:hover .slab[data-layer="4"] { transform: rotateX(56deg) rotateZ(-40deg) translateZ(34px); }
.stack:hover .slab[data-layer="3"] { transform: rotateX(56deg) rotateZ(-40deg) translateZ(20px); }
.stack:hover .slab[data-layer="2"] { transform: rotateX(56deg) rotateZ(-40deg) translateZ(8px); }

/* ---------- Fanned cards ---------- */
.fan {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 24px 0 40px;
}
.fan-card {
  position: relative;
  min-height: 320px;
  padding: 28px;
  border-radius: 24px;
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
  display: flex;
  flex-direction: column;
  transition: transform .35s ease, z-index 0s;
}
.fan-card:nth-child(1) { transform: rotate(-7deg) translate(12px, 24px); }
.fan-card:nth-child(2) { transform: rotate(-2deg) translate(4px, 0); }
.fan-card:nth-child(3) { transform: rotate(3deg) translate(-4px, 0); }
.fan-card:nth-child(4) { transform: rotate(8deg) translate(-12px, 24px); }
.fan-card:hover { transform: rotate(0) translateY(-12px) scale(1.04); z-index: 2; }
.fc-teal  { background: var(--teal-soft); }
.fc-paper { background: var(--paper); }
.fc-blue  { background: var(--blue-soft); }
.fc-sun   { background: var(--sun); }
.fan-num {
  font-family: var(--serif);
  font-style: italic;
  font-size: 3.2rem;
  line-height: 1;
  opacity: .5;
}
.fan-card h3 { font-size: 2rem; margin: auto 0 12px; padding-top: 32px; }
.fan-card p { font-size: .95rem; line-height: 1.45; }

/* ---------- Trust stamps ---------- */
.trust {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 56px;
  border-radius: 40px;
  background: var(--paper-2);
}
.stamps { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.stamps li {
  width: 136px;
  height: 136px;
  border-radius: 50%;
  border: 2px dashed var(--ink);
  outline: 2px solid var(--ink);
  outline-offset: 4px;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 12px;
  line-height: 1.15;
  transition: transform .3s ease;
}
.stamps li:nth-child(1) { transform: rotate(-8deg); background: var(--teal-soft); }
.stamps li:nth-child(2) { transform: rotate(5deg);  background: var(--sun); }
.stamps li:nth-child(3) { transform: rotate(-3deg); background: var(--blue-soft); }
.stamps li:hover { transform: rotate(0) scale(1.06); }
.stamps strong { font-family: var(--serif); font-size: 1.15rem; font-weight: 500; }
.stamps small { font-size: .72rem; font-weight: 600; color: var(--ink-2); }

/* ---------- Experience ---------- */
.exp { padding-top: 40px; border-top: 2px solid var(--ink); }
.exp-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 36px;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  color: var(--ink-2);
}

/* ---------- CTA ---------- */
.cta { text-align: center; overflow: hidden; }
.cta-loop {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 140%;
  max-width: 1400px;
  transform: translate(-50%, -50%);
  fill: none;
  stroke: var(--ink);
  stroke-width: 6;
  opacity: .08;
  pointer-events: none;
}
.cta-inner { position: relative; display: flex; flex-direction: column; align-items: center; }
.cta h2 { font-size: clamp(2.8rem, 6vw, 5rem); }
.cta .section-lead { text-align: center; margin-bottom: 36px; color: var(--ink-2); }

/* ---------- Contact form ---------- */
.contact-form {
  width: 100%;
  max-width: 640px;
  display: grid;
  gap: 22px;
  padding: 36px;
  text-align: left;
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: 6px 6px 0 var(--navy);
}
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 8px; }
.field span {
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--ink-2);
}
.field input, .field textarea {
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink);
  padding: 13px 16px;
  border: 2px solid var(--line);
  border-radius: 14px;
  background: #fff;
  resize: vertical;
  transition: border-color .2s ease;
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-3); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--ink); }

.pillgroup { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.pillgroup legend {
  width: 100%;
  padding: 0 0 4px;
  font-size: .82rem;
  font-weight: 700;
  color: var(--ink-2);
}
.pillgroup legend small { font-weight: 500; color: var(--ink-3); }
.pill-radio input { position: absolute; opacity: 0; width: 0; height: 0; }
.pill-radio span {
  display: inline-flex;
  padding: 8px 15px;
  border: 2px solid var(--line);
  border-radius: 999px;
  font-size: .85rem;
  font-weight: 700;
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease;
}
.pill-radio input:checked + span { border-color: var(--ink); background: var(--teal-soft); }
.pill-radio input:focus-visible + span { outline: 2px solid var(--blue); outline-offset: 2px; }

.form-foot { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.form-alt { font-size: .85rem; color: var(--ink-2); }
.form-alt a { text-decoration: underline; }
.form-status { min-height: 1.2em; margin: 0; font-size: .9rem; font-weight: 700; }
.form-status.is-success { color: #0a7a5c; }
.form-status.is-error { color: #b3261e; }

/* ---------- Footer ---------- */
.footer { padding: 72px 0 40px; }
.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 32px;
  align-items: center;
}
.footer-brand img { height: 36px; width: auto; margin-bottom: 12px; }
.footer-brand p { font-family: var(--serif); font-size: 1.1rem; color: var(--ink-2); }
.footer-links { display: flex; gap: 24px; font-weight: 600; font-size: .95rem; }
.footer-links a:hover { text-decoration: underline; }
.footer-legal { font-size: .875rem; color: var(--ink-2); }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; translate: 0 18px; transition: opacity .7s ease, translate .7s ease; }
.reveal.in { opacity: 1; translate: 0 0; }

/* ---------- Focus ---------- */
a:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: 6px; }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .stage { max-width: 560px; margin: 0 auto; width: 100%; }
  .bento { grid-template-columns: 1fr 1fr; }
  .card-lg { grid-row: auto; grid-column: span 2; }
  .card-wide { flex-direction: column; align-items: flex-start; }
  .ai-grid { grid-template-columns: 1fr; gap: 24px; }
  .stack { order: -1; padding: 20px 0 40px; }
  .fan { grid-template-columns: 1fr 1fr; gap: 32px 20px; padding: 16px 12px 24px; }
  .fan-card:nth-child(n) { transform: rotate(-2deg); }
  .fan-card:nth-child(even) { transform: rotate(2deg); }
  .trust { grid-template-columns: 1fr; padding: 40px 28px; }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .nav-links { display: none; }
  .hero { padding: 56px 0 48px; }
  .hero h1 { font-size: clamp(2.7rem, 12vw, 3.6rem); }
  .stage { padding: 24px 0 40px; }
  .sticker { font-size: .95rem; padding: 6px 12px; }
  .ticker span, .ticker i { font-size: 1.5rem; }
  .section { padding: 88px 0; }
  .section-tight { padding-bottom: 80px; }
  .bento { grid-template-columns: 1fr; }
  .card-lg, .card-wide { grid-column: auto; }
  .card { padding: 24px; }
  .card-media { margin: -24px -24px 0; }
  .pipeline { flex-wrap: wrap; gap: 8px; }
  .pipeline li + li { margin-left: 0; }
  .pipeline li + li::before { display: none; }
  .sheet { margin: 0 12px; padding: 80px 0; border-radius: 28px; }
  .slab { width: 84%; height: 64px; }
  .fan { grid-template-columns: 1fr; gap: 24px; }
  .fan-card { min-height: 0; }
  .fan-card h3 { padding-top: 20px; }
  .stamps li { width: 112px; height: 112px; }
  .exp-list { font-size: 1rem; gap: 10px 24px; }
  .contact-form { padding: 24px; box-shadow: 4px 4px 0 var(--navy); }
  .form-row { grid-template-columns: 1fr; gap: 16px; }
  .footer { padding-top: 56px; }
  .footer-links { flex-wrap: wrap; gap: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .loop-flow, .sticker, .ticker-track { animation: none; }
  .reveal { opacity: 1; translate: 0 0; transition: none; }
  * { transition: none !important; }
}