/* ══════════════════════════════════════════════════════════════
   CLIPPSTER — landing page design system
   Dark navy glass world · one iridescent accent · SF Pro stack
   ══════════════════════════════════════════════════════════════ */

:root {
  /* color */
  --bg-0: #070B18;
  --bg-1: #0C1226;
  --glass: rgba(255, 255, 255, 0.055);
  --stroke: rgba(255, 255, 255, 0.10);
  --ink: #F2F5FC;
  --ink-2: rgba(226, 233, 248, 0.68);
  --ink-3: rgba(226, 233, 248, 0.44);
  --accent-a: #7DD3FC;
  --accent-b: #A5B4FC;
  --accent-c: #F0ABFC;
  --iridescent: linear-gradient(100deg, var(--accent-a) 0%, var(--accent-b) 48%, var(--accent-c) 100%);

  /* type */
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Inter, Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, monospace;

  /* shape */
  --r-panel: 18px;
  --r-media: 20px;

  /* rhythm */
  --wrap: 1180px;
  --gutter: 24px;
  --section-gap: clamp(96px, 12vw, 160px);

  /* motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; }
html:focus-within { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg-0);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul[role="list"] { list-style: none; padding: 0; }
code, kbd { font-family: var(--mono); }

/* ambient field: faint navy wash + top vignette */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1200px 700px at 78% -10%, rgba(122, 148, 252, 0.10), transparent 60%),
    radial-gradient(900px 600px at 8% 12%, rgba(240, 171, 252, 0.05), transparent 55%),
    var(--bg-0);
  pointer-events: none;
}

/* hero starts true black; the overlay scrubs away over the first ~85vh
   of scroll, revealing the navy field beneath */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background: #000;
  pointer-events: none;
  transition: opacity 0.8s var(--ease-out); /* IO fallback path */
}
body.past-hero::after { opacity: 0; }
@supports (animation-timeline: scroll()) {
  body::after {
    transition: none;
    animation: hero-black-fade linear both;
    animation-timeline: scroll(root);
    animation-range: 0 85vh;
  }
  body.past-hero::after { opacity: 1; } /* range drives it; keep IO class inert */
}
@keyframes hero-black-fade {
  from { opacity: 1; }
  to { opacity: 0; }
}
html.no-hero-black body::after { display: none; } /* QA / snapshot mode */

::selection { background: rgba(125, 211, 252, 0.28); }

/* ── a11y ──────────────────────────────────────────────── */
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}
.skip-link {
  position: fixed; top: 10px; left: 10px; z-index: 100;
  padding: 10px 16px; border-radius: 999px;
  background: var(--ink); color: var(--bg-0);
  font-size: 0.875rem; font-weight: 600;
  transform: translateY(-64px); transition: transform 0.2s var(--ease-out);
}
.skip-link:focus-visible { transform: translateY(0); }
:focus-visible {
  outline: 2px solid var(--accent-a);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ── type scale ────────────────────────────────────────── */
.display {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.02;
  text-wrap: balance;
}
.title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.022em;
  line-height: 1.08;
  text-wrap: balance;
}
.lede {
  font-size: 1.0625rem;
  color: var(--ink-2);
  max-width: 58ch;
  margin-top: 18px;
}
.lede-center { margin-inline: auto; }
.eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 16px;
}
.iridescent {
  background: var(--iridescent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ── layout ────────────────────────────────────────────── */
.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { margin-top: var(--section-gap); scroll-margin-top: 84px; }
.section-head { max-width: 720px; margin-bottom: clamp(40px, 6vw, 64px); }

/* ── buttons ───────────────────────────────────────────── */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.18s var(--ease-out), box-shadow 0.18s var(--ease-out),
              background-color 0.18s var(--ease-out), border-color 0.18s var(--ease-out);
  overflow: hidden;
}
.btn:active { transform: translateY(1px) scale(0.98); }
.btn-primary {
  background: var(--ink);
  color: var(--bg-0);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}
.btn-primary::after {  /* iridescent sheen sweep on hover */
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 20%, rgba(125, 211, 252, 0.35) 42%, rgba(240, 171, 252, 0.35) 58%, transparent 80%);
  transform: translateX(-110%);
  transition: transform 0.55s var(--ease-out);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 40px rgba(0, 0, 0, 0.45); }
.btn-primary:hover::after { transform: translateX(110%); }
.btn-ghost {
  background: var(--glass);
  border-color: var(--stroke);
  color: var(--ink);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.09); transform: translateY(-1px); }
.btn-sm { padding: 9px 18px; font-size: 0.875rem; }
.btn-lg { padding: 16px 34px; font-size: 1.05rem; }
.btn-icon { width: 16px; height: 16px; fill: currentColor; flex: none; translate: 0 -1px; }

/* ── glass + chips + media ─────────────────────────────── */
.glass {
  background: var(--glass);
  border: 1px solid var(--stroke);
  border-radius: var(--r-panel);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.07);
}
@supports (backdrop-filter: blur(1px)) {
  .glass { backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px); }
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}
.chip {
  font-size: 0.82rem;
  font-weight: 550;
  color: var(--ink-2);
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--stroke);
}

.media {
  position: relative;
  border-radius: var(--r-media);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}
.media::after {  /* gradient hairline */
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(125, 211, 252, 0.35), rgba(165, 180, 252, 0.14) 40%, rgba(240, 171, 252, 0.30));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  pointer-events: none;
}
.media img { width: 100%; }
.media-bleed { margin-inline: calc(var(--gutter) * -0.5); }
.media-narrow { max-width: 860px; margin-inline: auto; }

/* ── nav ───────────────────────────────────────────────── */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  transition: background-color 0.25s var(--ease-out), border-color 0.25s var(--ease-out);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(7, 11, 24, 0.72);
  border-bottom-color: var(--stroke);
}
@supports (backdrop-filter: blur(1px)) {
  .nav.scrolled { backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
}
.nav-inner {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
  height: 64px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  letter-spacing: -0.01em;
}
.brand-icon { border-radius: 7px; }
.nav-links {
  display: flex;
  gap: 26px;
  margin-left: auto;
  font-size: 0.9rem;
  color: var(--ink-2);
}
.nav-links a { transition: color 0.15s var(--ease-out); }
.nav-links a:hover { color: var(--ink); }

/* ── hero ──────────────────────────────────────────────── */
.hero {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding-top: 96px;  /* nav offset, ≤24 cap respected */
  padding-bottom: 48px;
}
.hero-inner {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: clamp(32px, 6vw, 80px);
}
.hero-h1 {
  max-width: none;
  font-size: clamp(2.5rem, 5vw, 3.8rem); /* keeps "clipboard companion" on one line */
}
@media (min-width: 1024px) and (max-width: 1279px) {
  .hero-h1 { font-size: 3.15rem; }
}
.hero-sub {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  color: var(--ink-2);
  max-width: 44ch;
  margin-top: 22px;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero-visual { position: relative; display: grid; place-items: center; }
.hero-glow {
  position: absolute;
  width: 78%;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(closest-side, rgba(125, 211, 252, 0.22), rgba(165, 180, 252, 0.12) 45%, rgba(240, 171, 252, 0.10) 62%, transparent 72%);
  filter: blur(30px);
}
.hero-orb {
  position: relative;
  width: min(100%, 560px);
}
.hero-video {
  width: 100%;
  height: auto;
  mix-blend-mode: screen; /* black frame contributes nothing — melts into black hero AND navy field on scroll */
  /* float lives on the video itself, NOT an ancestor: an animated ancestor would
     hold a stacking context and cut the blend off from the page backdrop */
  animation: orb-float 9s ease-in-out infinite;
}
.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 26px;
  translate: -50% 0;
  width: 34px; height: 34px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  color: var(--ink-3);
  border: 1px solid var(--stroke);
  transition: color 0.2s var(--ease-out), border-color 0.2s var(--ease-out);
}
.scroll-hint:hover { color: var(--ink); border-color: rgba(255, 255, 255, 0.24); }

/* ── keycaps ───────────────────────────────────────────── */
.keycap {
  display: inline-grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.05) 55%, rgba(255, 255, 255, 0.02));
  border: 1px solid var(--stroke);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -3px 0 rgba(0, 0, 0, 0.35),
    0 14px 34px rgba(0, 0, 0, 0.42);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 600;
}
.keycap-sm { width: 30px; height: 30px; font-size: 0.85rem; border-radius: 9px; }
.keycap-lg { width: clamp(72px, 9vw, 104px); height: clamp(72px, 9vw, 104px); font-size: clamp(1.9rem, 3.2vw, 2.6rem); }.keycap-accent {
  background: var(--iridescent);
  color: #0B1024;
  border-color: transparent;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    inset 0 -3px 0 rgba(11, 16, 36, 0.28),
    0 14px 40px rgba(165, 180, 252, 0.35);
}
.kbd-inline {
  font-size: 0.85em;
  padding: 2px 7px;
  border-radius: 7px;
  background: var(--glass);
  border: 1px solid var(--stroke);
  color: var(--ink);
  white-space: nowrap;
}

/* ── bento ─────────────────────────────────────────────── */
.bento {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.bento-cell {
  padding: clamp(24px, 3.4vw, 40px);
  display: flex;
  flex-direction: column;
  gap: 26px;
  overflow: hidden;
}
.bento-wide { grid-column: 1 / -1; flex-direction: row; align-items: center; gap: clamp(26px, 4vw, 56px); }
.bento-wide .bento-copy { flex: 0 1 40%; }
.bento-wide .bento-media { flex: 1 1 60%; }
.bento-cell h3 {
  font-size: clamp(1.3rem, 2vw, 1.6rem);
  font-weight: 650;
  letter-spacing: -0.015em;
  line-height: 1.2;
  text-wrap: balance;
}
.bento-cell p { color: var(--ink-2); font-size: 0.98rem; margin-top: 12px; max-width: 46ch; }
.bento-media { box-shadow: 0 16px 50px rgba(0, 0, 0, 0.4); }
.bento-tint {
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(165, 180, 252, 0.10), transparent 55%),
    var(--glass);
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}
.tag-cloud li {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink-2);
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.04);
}
.tag-cloud .tag-warn {
  color: #FBCFE8;
  border-color: rgba(240, 171, 252, 0.35);
  background: rgba(240, 171, 252, 0.10);
}

/* ── recall ────────────────────────────────────────────── */
.recall-stage {
  text-align: center;
  max-width: 640px;
  margin: 0 auto clamp(44px, 6vw, 72px);
}
.keycap-trio {
  display: flex;
  justify-content: center;
  gap: clamp(10px, 1.6vw, 16px);
  margin-bottom: 36px;
}

/* ── privacy ───────────────────────────────────────────── */
.privacy-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(40px, 7vw, 96px);
  align-items: start;
}
.proof-list li {
  padding: 26px 0;
  border-top: 1px solid var(--stroke);
}
.proof-list li:last-child { border-bottom: 1px solid var(--stroke); }
.proof-list h3 {
  font-size: 1.08rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}
.proof-list p { color: var(--ink-2); font-size: 0.95rem; margin-top: 8px; max-width: 44ch; }

/* ── specs ─────────────────────────────────────────────── */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--stroke);
  border-left: 1px solid var(--stroke);
  border-radius: var(--r-panel);
  overflow: hidden;
}
.spec {
  padding: 22px 24px;
  border-right: 1px solid var(--stroke);
  border-bottom: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.025);
}
.spec dt {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.spec dd {
  font-family: var(--mono);
  font-size: 0.92rem;
  color: var(--ink);
  margin-top: 8px;
}

/* ── finale ────────────────────────────────────────────── */
.finale {
  position: relative;
  text-align: center;
  padding-block: clamp(80px, 10vw, 130px);
  overflow: hidden;
}
.finale-glow {
  position: absolute;
  left: 50%; top: 50%;
  translate: -50% -50%;
  width: min(720px, 90vw);
  aspect-ratio: 1.4;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(125, 211, 252, 0.14), rgba(240, 171, 252, 0.08) 55%, transparent 75%);
  filter: blur(40px);
  pointer-events: none;
}
.finale-inner { position: relative; display: flex; flex-direction: column; align-items: center; }
.finale-icon { border-radius: 18px; margin-bottom: 28px; box-shadow: 0 18px 50px rgba(0, 0, 0, 0.5); }
.finale .btn { margin-top: 38px; }
.finale-meta { margin-top: 18px; font-size: 0.88rem; color: var(--ink-3); }

/* ── footer ────────────────────────────────────────────── */
.footer {
  margin-top: var(--section-gap);
  border-top: 1px solid var(--stroke);
  background: var(--bg-1);
}
.footer-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  padding-block: 30px;
  font-size: 0.88rem;
  color: var(--ink-2);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  row-gap: 10px;
  gap: 10px 22px;
  margin-left: auto;
}
.footer-links a { transition: color 0.15s var(--ease-out); }
.footer-links a:hover { color: var(--ink); }
.footer-meta { color: var(--ink-3); }

/* ── reveal choreography ───────────────────────────────── */
/* Initial states are applied by JS only when motion is allowed,
   so no-JS / reduced-motion users always see full content. */
.will-reveal {
  opacity: 0;
  transform: translateY(18px);
  filter: blur(6px);
}
.will-reveal-media {
  opacity: 0;
  clip-path: inset(6% 3% 6% 3% round var(--r-media));
  transform: scale(0.985);
}
.reveal-in {
  opacity: 1;
  transform: none;
  filter: none; /* NOT blur(0) — a filter function holds a permanent stacking context and traps descendants' mix-blend-mode */
  transition:
    opacity 0.9s var(--ease-out),
    transform 0.9s var(--ease-out),
    filter 0.9s var(--ease-out);
  transition-delay: calc(var(--i, 0) * 90ms);
}
.will-reveal-media.reveal-in {
  clip-path: inset(0 0 0 0 round var(--r-media));
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out),
              clip-path 1s var(--ease-out);
  transition-delay: calc(var(--i, 0) * 90ms);
}
.hero-load .will-hero {
  opacity: 0;
  transform: translateY(22px);
  filter: blur(8px);
}
.hero-load .hero-in {
  opacity: 1;
  transform: none;
  filter: none; /* NOT blur(0) — releases the stacking context so .hero-video screens against the page field */
  transition:
    opacity 1s var(--ease-out),
    transform 1s var(--ease-out),
    filter 1s var(--ease-out);
  transition-delay: calc(120ms + var(--i, 0) * 110ms);
}

/* keycap press moment (JS adds .pressed once in view) */
.keycap-lg { transition: transform 0.5s var(--ease-out); transition-delay: calc(var(--i, 0) * 120ms); }
.keycap-trio.pressed .keycap-lg { transform: translateY(3px) scale(0.965); }
.keycap-trio.pressed .keycap-lg { animation: key-release 0.9s var(--ease-out) forwards; animation-delay: calc(450ms + var(--i, 0) * 120ms); }
@keyframes key-release {
  to { transform: none; }
}

/* hero orb gentle float (on .hero-video — see note there) */
@keyframes orb-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ── legal pages (Read mode) ───────────────────────────── */
.legal-main {
  max-width: 760px;
  margin-inline: auto;
  padding: clamp(130px, 16vh, 170px) var(--gutter) 40px;
}
.legal-main h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
}
.legal-meta {
  margin-top: 14px;
  font-size: 0.9rem;
  color: var(--ink-3);
}
.prose { margin-top: 44px; }
.prose h2 {
  font-size: 1.22rem;
  font-weight: 650;
  letter-spacing: -0.012em;
  margin-top: 42px;
}
.prose p, .prose li {
  font-size: 0.98rem;
  color: var(--ink-2);
  line-height: 1.7;
}
.prose p { margin-top: 14px; }
.prose ul {
  margin-top: 12px;
  padding-left: 4px;
  list-style: none;
}
.prose li {
  position: relative;
  padding-left: 20px;
  margin-top: 8px;
}
.prose li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-b);
}
.prose a {
  color: var(--accent-a);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(125, 211, 252, 0.4);
}
.prose a:hover { text-decoration-color: var(--accent-a); }

/* ── reduced transparency ──────────────────────────────── */
@media (prefers-reduced-transparency: reduce) {
  .glass, .nav.scrolled {
    background: #121A33;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

/* ── reduced motion ────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .hero-video { animation: none; }
  .will-reveal, .will-reveal-media, .hero-load .will-hero {
    opacity: 1; transform: none; filter: none; clip-path: none;
  }
}

/* ── responsive ────────────────────────────────────────── */
@media (max-width: 1023px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; text-align: left; }
  .hero-orb { width: min(82vw, 380px); }
  .hero { padding-top: 110px; }
  .bento-wide { flex-direction: column; align-items: stretch; }
  .bento-wide .bento-copy { flex: none; max-width: 56ch; }
  .privacy-grid { grid-template-columns: 1fr; }
  .spec-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 719px) {
  .nav-links { display: none; }
  .nav-inner { gap: 16px; }
  .nav .btn { margin-left: auto; }
  .bento { grid-template-columns: 1fr; }
  .footer-inner { flex-wrap: wrap; gap: 16px; }
  .footer-links { margin-left: 0; order: 3; width: 100%; }
  .footer-meta { margin-left: auto; }
  .hero-cta .btn { flex: 1 1 auto; justify-content: center; }
  .scroll-hint { display: none; }
  .spec-grid { grid-template-columns: 1fr; }
  .media-bleed { margin-inline: 0; }
}