/* ============================================================
   iPhone 504 — Design System
   "Simplicity is the ultimate sophistication."
   Light & airy · optical serif + humanist sans · holographic accent
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,300;9..144,400;9..144,500;9..144,600&family=Manrope:wght@300;400;500;600;700&display=swap');

:root {
  /* Canvas */
  --bg:        #f4f4f6;
  --bg-pure:   #ffffff;
  --bg-warm:   #f8f7f5;

  /* Ink */
  --ink:       #14141a;
  --ink-soft:  #6b6b76;
  --ink-faint: #9a9aa3;
  --hairline:  rgba(20, 20, 26, 0.09);
  --hairline-strong: rgba(20, 20, 26, 0.16);

  /* Holographic accent — the one thing you remember */
  --holo: linear-gradient(
    110deg,
    #7ce7ff 0%,
    #8f9bff 22%,
    #c88bff 44%,
    #ff9ec7 64%,
    #ffce7a 82%,
    #7ce7ff 100%
  );

  /* Type */
  --display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --body:    'Manrope', -apple-system, sans-serif;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);

  /* Rhythm */
  --pad: clamp(1.4rem, 5vw, 6rem);
  --maxw: 1200px;
}

/* Animatable phone finish colours */
@property --body-a { syntax: '<color>'; inherits: false; initial-value: #d8dbe2; }
@property --body-b { syntax: '<color>'; inherits: false; initial-value: #aeb2bd; }

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  overflow-x: hidden;
  letter-spacing: -0.005em;
}

/* Subtle grain + light gradient atmosphere over the whole page */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(120% 80% at 80% -10%, rgba(143,155,255,0.10), transparent 60%),
    radial-gradient(90% 70% at 0% 110%, rgba(255,158,199,0.09), transparent 55%),
    var(--bg);
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

::selection { background: rgba(143,155,255,0.28); }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---------- Layout ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--pad); }
.section { padding-block: clamp(5rem, 12vh, 10rem); }

/* ---------- Typography ---------- */
.eyebrow {
  font-family: var(--body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

h1, h2, h3 { font-family: var(--display); font-weight: 400; line-height: 1.02; letter-spacing: -0.02em; }

.display-xl { font-size: clamp(3.2rem, 12vw, 9.5rem); font-weight: 300; }
.display-l  { font-size: clamp(2.6rem, 7vw, 5.5rem); font-weight: 300; }
.display-m  { font-size: clamp(2rem, 4.5vw, 3.4rem); font-weight: 400; }

.lede {
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  color: var(--ink-soft);
  font-weight: 400;
  max-width: 40ch;
  line-height: 1.5;
}

.holo {
  background: var(--holo);
  background-size: 260% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: holo-drift 8s linear infinite;
}
@keyframes holo-drift {
  to { background-position: 260% center; }
}

em.serif { font-style: italic; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem var(--pad);
  background: rgba(244,244,246,0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--ease-soft), background 0.4s var(--ease-soft);
}
.nav.scrolled { border-bottom-color: var(--hairline); background: rgba(244,244,246,0.85); }
.nav__brand { display: flex; align-items: center; gap: 0.5rem; font-weight: 600; font-size: 0.95rem; letter-spacing: -0.01em; }
.nav__brand .mark { font-size: 1.05rem; }
.nav__links { display: flex; gap: clamp(1rem, 3vw, 2.4rem); align-items: center; }
.nav__links a { font-size: 0.9rem; color: var(--ink-soft); font-weight: 500; position: relative; transition: color 0.25s; }
.nav__links a:hover { color: var(--ink); }
.nav__links a.active { color: var(--ink); }
.nav__links a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -6px; height: 1.5px;
  background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform 0.3s var(--ease);
}
.nav__links a.active::after, .nav__links a:hover::after { transform: scaleX(1); }
.nav__cta {
  padding: 0.45rem 1.05rem; border-radius: 100px; background: var(--ink); color: var(--bg-pure) !important;
  font-size: 0.85rem; font-weight: 600; transition: transform 0.25s var(--ease), opacity 0.25s;
}
.nav__cta::after { display: none; }
.nav__cta:hover { transform: translateY(-1px); opacity: 0.9; }

@media (max-width: 720px) {
  .nav__links { gap: 1rem; }
  .nav__links a:not(.nav__cta) { display: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 1.7rem; border-radius: 100px;
  font-family: var(--body); font-weight: 600; font-size: 0.95rem;
  cursor: pointer; border: none; transition: transform 0.25s var(--ease), box-shadow 0.3s;
}
.btn--dark { background: var(--ink); color: var(--bg-pure); }
.btn--dark:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -12px rgba(20,20,26,0.5); }
.btn--ghost { background: transparent; color: var(--ink); border: 1px solid var(--hairline-strong); }
.btn--ghost:hover { border-color: var(--ink); transform: translateY(-2px); }
.btn .arrow { transition: transform 0.25s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- The Phone (pure CSS) ---------- */
.phone {
  --body-a: #d8dbe2;
  --body-b: #aeb2bd;
  --rim:    #f4f5f8;
  position: relative;
  width: 250px;
  aspect-ratio: 250 / 512;
  border-radius: 44px;
  background: linear-gradient(145deg, var(--body-a), var(--body-b));
  padding: 9px;
  box-shadow:
    0 2px 2px rgba(255,255,255,0.6) inset,
    0 40px 80px -30px rgba(20,20,40,0.45),
    0 12px 30px -18px rgba(20,20,40,0.35);
  transition: --body-a 0.55s var(--ease), --body-b 0.55s var(--ease);
}
.phone::before { /* side rim highlight */
  content: ''; position: absolute; inset: 3px; border-radius: 41px;
  background: linear-gradient(120deg, rgba(255,255,255,0.7), transparent 30%, transparent 70%, rgba(255,255,255,0.5));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; padding: 2px; pointer-events: none;
}
.phone__screen {
  position: relative; width: 100%; height: 100%; border-radius: 36px; overflow: hidden;
  background: #05060a;
  box-shadow: 0 0 0 2px rgba(0,0,0,0.35) inset;
}
.phone__wall {
  position: absolute; inset: 0;
  background:
    radial-gradient(120% 90% at 50% 8%, rgba(255,255,255,0.10), transparent 40%),
    var(--holo);
  background-size: cover, 300% 300%;
  animation: wall-shift 12s ease-in-out infinite alternate;
  filter: saturate(1.1);
}
@keyframes wall-shift { to { background-position: 0 0, 100% 100%; } }
.phone__glare {
  position: absolute; inset: 0;
  background: linear-gradient(115deg, rgba(255,255,255,0.35) 0%, transparent 22%, transparent 78%, rgba(255,255,255,0.14) 100%);
  mix-blend-mode: screen;
}
.phone__island {
  position: absolute; top: 14px; left: 50%; transform: translateX(-50%);
  width: 82px; height: 24px; border-radius: 100px; background: #05060a;
  z-index: 3; box-shadow: 0 0 0 1px rgba(255,255,255,0.06) inset;
}
.phone__island::after {
  content: ''; position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  width: 7px; height: 7px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #3a4a66, #0a0e18);
}
.phone__time {
  position: absolute; top: 52px; left: 0; right: 0; text-align: center;
  color: #fff; font-family: var(--body); font-weight: 300; font-size: 3.1rem; letter-spacing: 0.01em; z-index: 2;
  text-shadow: 0 2px 20px rgba(0,0,0,0.35);
}
.phone__date {
  position: absolute; top: 40px; left: 0; right: 0; text-align: center;
  color: rgba(255,255,255,0.9); font-family: var(--body); font-weight: 500; font-size: 0.75rem; letter-spacing: 0.04em; z-index: 2;
}
/* camera plateau */
.phone__cam {
  position: absolute; z-index: 4; top: -0px;
}

/* floating / hover behaviors set per-page */
.phone--float { animation: float 6s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-18px) rotate(1deg); } }

/* ---------- Reveal animations ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--d, 0s);
  will-change: opacity, transform;
}
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal="scale"] { transform: scale(0.94); }
[data-reveal="scale"].in { transform: none; }
[data-reveal="left"]  { transform: translateX(-40px); }
[data-reveal="right"] { transform: translateX(40px); }
[data-reveal="left"].in, [data-reveal="right"].in { transform: none; }

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

/* ---------- Feature cards ---------- */
.grid { display: grid; gap: 1.4rem; }
.card {
  background: var(--bg-pure);
  border: 1px solid var(--hairline);
  border-radius: 28px;
  padding: clamp(1.6rem, 3vw, 2.6rem);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s;
  position: relative;
  overflow: hidden;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 30px 60px -40px rgba(20,20,40,0.4); border-color: var(--hairline-strong); }
.card__kicker { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-faint); }
.card h3 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); margin-top: 0.5rem; }
.card p { color: var(--ink-soft); margin-top: 0.7rem; font-size: 1rem; }
.card__stat { font-family: var(--display); font-weight: 300; font-size: clamp(2.4rem, 5vw, 3.6rem); line-height: 1; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--hairline);
  padding-block: 3.5rem 2.5rem;
  color: var(--ink-soft);
  font-size: 0.85rem;
}
.footer__grid { display: flex; flex-wrap: wrap; gap: 2.5rem; justify-content: space-between; }
.footer__col h4 { font-family: var(--body); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 0.9rem; font-weight: 600; }
.footer__col a { display: block; margin-bottom: 0.5rem; color: var(--ink-soft); transition: color 0.2s; }
.footer__col a:hover { color: var(--ink); }
.footer__base { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--hairline); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; font-size: 0.8rem; color: var(--ink-faint); }

/* ---------- Marquee ---------- */
.marquee { overflow: hidden; border-block: 1px solid var(--hairline); padding-block: 1.5rem; -webkit-mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee__row { display: flex; gap: 3rem; white-space: nowrap; animation: marquee 28s linear infinite; width: max-content; }
.marquee__row span { font-family: var(--display); font-weight: 300; font-size: clamp(1.6rem, 4vw, 3rem); color: var(--ink-faint); }
.marquee__row span em { font-style: italic; color: var(--ink); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* Utility */
.center { text-align: center; }
.mx-auto { margin-inline: auto; }
.stack > * + * { margin-top: 1.2rem; }
.pill { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.4rem 0.95rem; border-radius: 100px; border: 1px solid var(--hairline-strong); font-size: 0.8rem; font-weight: 600; color: var(--ink-soft); background: rgba(255,255,255,0.5); }
.pill .dot { width: 7px; height: 7px; border-radius: 50%; background: #34c759; box-shadow: 0 0 0 3px rgba(52,199,89,0.18); }