/* Perception Origin — landing page
   Light theme · brand palette: Teal #0FA3A9, Deep Navy #0B1220, Beam #0FA3A9→#E6FAFA */

:root {
  --teal:     #0FA3A9;   /* primary */
  --teal-700: #0C8C91;   /* hover */
  --navy:     #0B1220;   /* brand wordmark */
  --beam-2:   #E8F7F8;   /* beam light end (stays visible, not pure white) */

  --bg:       #F7F9FA;   /* off-white — premium, not harsh on OLED/HDR */
  --bg-alt:   #F3F6F8;   /* subtle blue-grey alt sections */
  --card:     #FFFFFF;   /* cards pop on the off-white */
  --line:     #DCE3E8;   /* soft dividers */
  --ink:      #0F172A;   /* headings + dark text (lower strain than pure black) */
  --muted:    #475569;   /* body text */

  --btn2-border: #CBD5E1;
  --btn2-hover:  #EEF4F6;

  --radius:   14px;
  --maxw:     1100px;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
em { font-style: normal; color: var(--teal); }
.muted { color: var(--muted); }

/* ── Brand wordmark (echoes the logo: PERCEPTION navy, ORIGIN teal) ───── */
.brand { display: inline-flex; align-items: center; gap: .65rem; }
.brand__mark { height: 30px; width: auto; display: block; }
.brand__name {
  font-size: .92rem; letter-spacing: .22em; color: var(--teal); font-weight: 500;
}
.brand__name b { color: var(--ink); font-weight: 700; }
.brand--sm .brand__mark { height: 26px; }

/* ── Nav ─────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--maxw); margin: 0 auto; padding: 1rem 1.5rem;
  background: rgba(255,255,255,.82); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav__links { display: flex; align-items: center; gap: 1.6rem; font-size: .95rem; }
.nav__links a { color: var(--muted); transition: color .15s; }
.nav__links a:hover { color: var(--ink); }
.nav__cta {
  color: var(--navy) !important; border: 1px solid var(--line);
  padding: .42rem .95rem; border-radius: 99px;
}
.nav__cta:hover { border-color: var(--teal); color: var(--teal) !important; }

/* ── Hero ────────────────────────────────────────────── */
.hero {
  position: relative; overflow: hidden;
  border-bottom: 1px solid var(--line);
  padding: 0 1.5rem;
  min-height: calc(100vh - 64px);          /* fill the viewport below the sticky nav */
  display: grid; place-items: center;       /* center the box vertically + horizontally */
}
/* Background photo on its own layer so it can be desaturated — the teal chip was overpowering;
   readability comes from the glass card on top, so the image can sit back calmly. */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background:
    linear-gradient(rgba(247,249,250,.12), rgba(247,249,250,.12)),
    url('../assets/hero-alt.jpg') center / cover no-repeat;
  filter: saturate(.9) brightness(1.0);
}
.hero > * { position: relative; z-index: 1; }
/* ONE unified glass panel holding copy + animated mark, so the two halves read as a
   single composition instead of two separate floating boxes. */
.hero__inner {
  max-width: 940px; width: 100%; margin: 2rem auto;
  display: grid; grid-template-columns: 1.25fr .75fr; gap: 0; align-items: center;
  background: linear-gradient(135deg, rgba(255,255,255,.6), rgba(247,249,250,.74));
  backdrop-filter: blur(16px) saturate(125%);
  -webkit-backdrop-filter: blur(16px) saturate(125%);
  border: 1px solid rgba(255,255,255,.65);
  border-radius: 24px;
  box-shadow: 0 24px 64px rgba(11,18,32,.18), inset 0 1px 0 rgba(255,255,255,.85);
  overflow: hidden;
}
.hero__copy { padding: 2.4rem 2.4rem 2.6rem; }
.eyebrow {
  text-transform: uppercase; letter-spacing: .18em; font-size: .72rem;
  color: var(--teal); margin: 0 0 1rem; font-weight: 600;
}
.hero .eyebrow { color: var(--ink); }   /* hero eyebrow in black, matching the headline */
.hero__title {
  font-size: clamp(2.3rem, 5.5vw, 3.7rem); line-height: 1.06; letter-spacing: -.03em;
  margin: 0 0 1.1rem; max-width: 15ch; color: var(--ink);
}
.hero__lead { font-size: clamp(1.02rem, 1.8vw, 1.18rem); color: var(--muted); max-width: 52ch; margin: 0 0 1.4rem; }
.tagline {
  font-weight: 700; letter-spacing: .04em; font-size: 1.05rem; color: var(--ink); margin: 0 0 1.8rem;
}
.tagline span { color: var(--teal); }
.hero__actions { display: flex; gap: .8rem; flex-wrap: wrap; }
/* Right side of the SAME panel — no border, no tint: one seamless glass surface */
.hero__art {
  display: grid; place-items: center; align-self: center;
  padding: 2rem 2rem 2rem 0;
}
.po-logo { width: min(82%, 300px); height: auto; overflow: visible; }
/* pivot every animated part around its own centre */
.po-beam, .po-focal, .po-ping, .po-viewfinder, .po-dots circle {
  transform-box: fill-box; transform-origin: center;
}
.po-beam       { animation: po-beam   4.5s ease-in-out infinite; }
.po-focal      { animation: po-focal  2.6s ease-in-out infinite; }
.po-ping       { animation: po-ping   2.6s ease-out    infinite; }
.po-viewfinder { animation: po-lock   4s cubic-bezier(.2,.7,.2,1) infinite; }
.po-dots circle{ animation: po-twinkle 3.2s ease-in-out infinite; }
.po-dots circle:nth-child(3n)   { animation-delay: .5s; }
.po-dots circle:nth-child(3n+1) { animation-delay: 1s; }

@keyframes po-beam    { 0%,100% { opacity: .5 } 50% { opacity: 1 } }
@keyframes po-focal   { 0%,100% { transform: scale(1) } 50% { transform: scale(1.14) } }
@keyframes po-ping    { 0% { transform: scale(.7); opacity: .55 } 70% { opacity: 0 } 100% { transform: scale(2.6); opacity: 0 } }
@keyframes po-lock    { 0% { transform: scale(1.12) } 35%,100% { transform: scale(1) } }
@keyframes po-twinkle { 0%,100% { opacity: .35 } 50% { opacity: 1 } }

@media (prefers-reduced-motion: reduce) {
  .po-beam, .po-focal, .po-ping, .po-viewfinder, .po-dots circle { animation: none; }
  .po-ping { opacity: 0; }
}

/* ── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .72rem 1.35rem; border-radius: 99px; font-weight: 600; font-size: .95rem;
  border: 1px solid transparent; transition: transform .12s, background .15s, border-color .15s, color .15s;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--teal); color: #fff; }
.btn--primary:hover { background: var(--teal-700); }
.btn--ghost { border-color: var(--btn2-border); color: var(--ink); }
.btn--ghost:hover { background: var(--btn2-hover); }

/* ── Sections ────────────────────────────────────────── */
.section { max-width: var(--maxw); margin: 0 auto; padding: 5rem 1.5rem; }
.section--alt { background: var(--bg-alt); max-width: none; border-block: 1px solid var(--line); }
.section--alt > * { max-width: var(--maxw); margin-inline: auto; }
.section__head { max-width: 60ch; margin: 0 auto 2.5rem; text-align: center; }
.section__head h2 { font-size: clamp(1.6rem, 3.4vw, 2.2rem); letter-spacing: -.02em; margin: 0 0 .6rem; color: var(--ink); }

/* ── Cards ───────────────────────────────────────────── */
.cards { display: grid; gap: 1rem; }
.cards--3 { grid-template-columns: repeat(3, 1fr); }
.cards--2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.6rem;
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.card:hover { border-color: rgba(15,163,169,.4); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(11,18,32,.06); }
.card h3 { margin: 0 0 .5rem; font-size: 1.15rem; letter-spacing: -.01em; color: var(--ink); }
.card p { margin: 0; color: var(--muted); font-size: .96rem; }
.tag {
  display: inline-block; font-size: .68rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--teal); background: rgba(15,163,169,.08);
  border: 1px solid rgba(15,163,169,.22); border-radius: 99px;
  padding: .15rem .65rem; margin-bottom: .9rem;
}
.card--step .step__no {
  display: block; font-size: .8rem; font-weight: 700; letter-spacing: .12em;
  color: var(--teal); margin-bottom: .4rem;
}

/* Product cards: image header above white content (light theme) */
.card--product { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.card__img-wrap { height: 200px; overflow: hidden; background: var(--bg-alt); }
.card__img-wrap img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .5s ease;
}
.card--product:hover .card__img-wrap img { transform: scale(1.05); }
.card__content { padding: 1.6rem; }
.card__content .tag { margin-bottom: .7rem; }

/* ── Contact / Footer ────────────────────────────────── */
.contact { text-align: center; }
.footer {
  max-width: var(--maxw); margin: 0 auto; padding: 2.5rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  border-top: 1px solid var(--line);
}
.footer__links { display: flex; gap: 1.4rem; font-size: .9rem; }
.footer__links a { color: var(--muted); transition: color .15s; }
.footer__links a:hover { color: var(--teal); }
.footer__copy { color: var(--muted); font-size: .85rem; margin: 0; }

/* ── Subpages (Investors / Press) ────────────────────── */
.page-hero {
  text-align: center; padding: 4.5rem 1.5rem 3.2rem; border-bottom: 1px solid var(--line);
  background:
    linear-gradient(95deg, var(--bg) 20%, rgba(247,249,250,.5) 55%, rgba(247,249,250,0) 80%),
    url('../assets/hero-bg.svg') center / cover no-repeat;
}
.page-hero .eyebrow { margin-bottom: .6rem; }
.page-hero h1 { font-size: clamp(2rem, 4.5vw, 3rem); letter-spacing: -.03em; color: var(--ink); margin: 0 0 .8rem; }
.page-hero p { color: var(--muted); max-width: 56ch; margin: 0 auto; font-size: 1.08rem; }

.kv { display: grid; grid-template-columns: 190px 1fr; max-width: 660px; margin: 0 auto; }
.kv dt { color: var(--muted); padding: .7rem 0; border-top: 1px solid var(--line); font-size: .92rem; }
.kv dd { margin: 0; padding: .7rem 0; border-top: 1px solid var(--line); color: var(--ink); }

.swatches { display: flex; gap: 1.2rem; flex-wrap: wrap; justify-content: center; }
.swatch { text-align: center; font-size: .78rem; color: var(--muted); }
.swatch i { display: block; width: 66px; height: 66px; border-radius: 12px; border: 1px solid var(--line); margin: 0 auto .5rem; }
.placeholder { color: var(--muted); font-style: italic; }

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 860px) {
  .kv { grid-template-columns: 1fr; }
  .kv dd { padding-top: 0; border-top: none; }
  .hero__inner { grid-template-columns: 1fr; }
  .hero__art { order: -1; padding: 2rem; border-left: none; border-bottom: 1px solid rgba(11,18,32,.08); }
  .hero__copy { padding: 2.2rem; }
  .po-logo { width: min(58%, 230px); }
  .cards--3, .cards--2 { grid-template-columns: 1fr; }
  .nav__links a:not(.nav__cta) { display: none; }
}