/* DupFinder — modern landing (2026): restrained glass, bento grid, glow accents.
   Self-contained: system fonts only, no external assets. */

:root {
  --accent: #2e7ff8;
  --accent-2: #6a5cff;
  --accent-dark: #0a38a0;
  --bg: #f7f9fc;
  --bg-raise: #ffffff;
  --fg: #0e1116;
  --muted: #5b6472;
  --card: #ffffff;
  --card-2: #eef2f8;
  --border: #e3e8f0;
  --good: #16a05c;
  --bad: #cf4540;
  --warn: #b7791f;
  --glass: rgba(255, 255, 255, .72);
  --glow-a: rgba(46, 127, 248, .16);
  --glow-b: rgba(106, 92, 255, .12);
  --shadow: 0 10px 40px rgba(14, 30, 60, .08);
  --serif: "Iowan Old Style", "New York", Georgia, serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d12;
    --bg-raise: #11141b;
    --fg: #eef1f6;
    --muted: #98a2b3;
    --card: #141822;
    --card-2: #1a1f2c;
    --border: #232a38;
    --glass: rgba(17, 20, 27, .66);
    --glow-a: rgba(46, 127, 248, .22);
    --glow-b: rgba(106, 92, 255, .16);
    --shadow: 0 10px 40px rgba(0, 0, 0, .45);
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg); color: var(--fg); line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ── evidence type: monospace carries the "proof" voice ── */
.mono, .sec-kicker, .eyebrow, .cta-note, th, .stat b, .table-note, .shot figcaption {
  font-family: ui-monospace, "SF Mono", SFMono-Regular, Menlo, monospace;
}
.sec-kicker, .eyebrow { letter-spacing: .1em; }

/* ── ambient hex field behind the hero ── */
#hexfield {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: -1;
}
header.hero { position: relative; }

/* ── glow ground ── */
.aurora {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden;
}
.aurora::before, .aurora::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(90px);
}
.aurora::before {
  width: 640px; height: 640px; top: -220px; right: -140px; background: var(--glow-a);
}
.aurora::after {
  width: 520px; height: 520px; top: 380px; left: -200px; background: var(--glow-b);
}

/* ── nav ── */
nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--glass);
  -webkit-backdrop-filter: saturate(1.4) blur(14px); backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1080px; margin: 0 auto; padding: 12px 24px;
  display: flex; align-items: center; gap: 22px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.02rem; text-decoration: none; color: var(--fg); }
.brand .mark {
  width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center;
  background: linear-gradient(180deg, #2e80fa, #0a38a0);
  box-shadow: 0 4px 12px rgba(30, 90, 220, .35);
}
.brand .mark svg { width: 16px; height: 16px; fill: #fff; }
.nav-links { display: flex; gap: 18px; margin-left: auto; }
.nav-links a { font-size: .9rem; font-weight: 600; color: var(--muted); text-decoration: none; }
.nav-links a:hover { color: var(--fg); }
.nav-cta {
  font-size: .88rem; font-weight: 700; color: #fff !important; text-decoration: none;
  background: var(--accent); padding: 8px 16px; border-radius: 999px;
}
.nav-lang { display: flex; gap: 2px; margin-left: 8px; }
.nav-lang a, .nav-lang span {
  font-size: .78rem; font-weight: 700; padding: 4px 10px; border-radius: 999px;
  text-decoration: none; color: var(--muted);
}
.nav-lang span { background: var(--card-2); color: var(--fg); }
@media (max-width: 720px) { .nav-links a:not(.nav-cta) { display: none; } }

/* ── hero ── */
.hero { padding: 76px 0 40px; }
.hero-grid {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center;
}
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; } }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8rem; font-weight: 700; letter-spacing: .04em;
  color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 22px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--good); }
h1 {
  font-size: clamp(2.4rem, 5.4vw, 3.7rem); line-height: 1.06; letter-spacing: -0.03em;
  font-weight: 800;
}
h1 .grad {
  background: linear-gradient(92deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.tagline { font-size: 1.15rem; color: var(--muted); margin: 20px 0 28px; max-width: 520px; }
.cta-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.cta {
  display: inline-block; background: var(--accent); color: #fff; text-decoration: none;
  font-weight: 700; padding: 15px 30px; border-radius: 14px; font-size: 1.02rem;
  box-shadow: 0 10px 26px rgba(46, 127, 248, .38);
  transition: transform .15s ease, box-shadow .15s ease;
}
.cta:hover { transform: translateY(-1px); box-shadow: 0 14px 32px rgba(46, 127, 248, .45); }
.cta.ghost {
  background: transparent; color: var(--fg); border: 1.5px solid var(--border); box-shadow: none;
}
.cta-note { color: var(--muted); font-size: .85rem; margin-top: 16px; }

/* ── phone mockup (real screenshot) ── */
.phone-stage { position: relative; display: grid; place-items: center; padding: 12px 0; }
.phone {
  width: 272px; border-radius: 44px; padding: 10px;
  background: linear-gradient(160deg, #2a2f3a, #10131a);
  box-shadow: var(--shadow), 0 30px 80px rgba(14, 30, 60, .25);
  transform: rotate(3deg);
}
.screen {
  border-radius: 36px; overflow: hidden; background: var(--bg-raise);
  border: 1px solid var(--border); line-height: 0;
}
.screen img { width: 100%; height: auto; display: block; }

/* ── screenshot gallery ── */
.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 780px) { .shots { grid-template-columns: 1fr; max-width: 340px; margin: 0 auto; } }
.shot figure { margin: 0; }
.shot .frame {
  border-radius: 30px; padding: 7px;
  background: linear-gradient(160deg, #2a2f3a, #10131a);
  box-shadow: var(--shadow);
}
.shot .frame img { width: 100%; height: auto; display: block; border-radius: 24px; }
.shot figcaption {
  text-align: center; font-size: .88rem; color: var(--muted); margin-top: 12px;
}
.shot figcaption b { color: var(--fg); }
.phone { transition: transform .25s ease; will-change: transform; }

/* ── the signature: two identical photos merge, the hash proves it ── */
.phone-stage { padding-top: 150px; }
.pairproof {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 240px; text-align: center; z-index: 2;
}
.pp-cards { position: relative; height: 96px; }
.pp-card {
  position: absolute; top: 0; left: 50%; width: 84px; height: 84px;
  margin-left: -42px; border-radius: 14px; padding: 5px;
  background: var(--bg-raise); border: 1px solid var(--border);
  box-shadow: var(--shadow); transition: transform 1s cubic-bezier(.22,1,.36,1);
}
.pp-card img { width: 100%; height: 100%; object-fit: cover; border-radius: 10px; display: block; }
.pp-1 { transform: translateX(-72px) rotate(-7deg); }
.pp-2 { transform: translateX(72px) rotate(7deg); }
.pairproof.merge .pp-1, .pairproof.done .pp-1 { transform: translateX(-14px) rotate(-3deg); }
.pairproof.merge .pp-2, .pairproof.done .pp-2 { transform: translateX(14px) rotate(3deg); }
.pp-hash {
  font-family: ui-monospace, Menlo, monospace; font-size: .68rem;
  color: var(--accent); min-height: 1.2em; margin-top: 4px;
}
.pp-chip {
  display: inline-block; margin-top: 6px; padding: 5px 12px; border-radius: 999px;
  background: color-mix(in srgb, var(--good) 14%, transparent); color: var(--good);
  font-size: .7rem; font-weight: 700;
  opacity: 0; transform: scale(.7); transition: opacity .3s ease, transform .3s cubic-bezier(.34,1.56,.64,1);
}
.pp-chip.on { opacity: 1; transform: scale(1); }
@media (max-width: 860px) { .phone-stage { padding-top: 160px; } }

/* ── spotlight: cursor-tracked glow on cards ── */
body.spot .b-card, body.spot .stat { position: relative; overflow: hidden; }
body.spot .b-card::after, body.spot .stat::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%),
              color-mix(in srgb, var(--accent) 9%, transparent), transparent 70%);
  opacity: 0; transition: opacity .25s ease;
}
body.spot .b-card:hover::after, body.spot .stat:hover::after { opacity: 1; }

/* ── stats strip ── */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
  margin: 44px 0 0;
}
@media (max-width: 720px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 18px 20px; text-align: center;
}
.stat b { font-size: 1.5rem; letter-spacing: -0.02em; display: block; }
.stat small { color: var(--muted); font-size: .8rem; }

/* ── sections ── */
section { padding: 72px 0 0; }
.sec-kicker {
  font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 10px;
}
h2 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); letter-spacing: -0.02em; line-height: 1.15; margin-bottom: 10px; }
.lead { color: var(--muted); max-width: 620px; margin-bottom: 34px; font-size: 1.02rem; }

/* ── bento ── */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.b-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 20px;
  padding: 24px; grid-column: span 2; position: relative; overflow: hidden;
  transition: transform .18s ease, box-shadow .18s ease;
}
.b-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.b-card.wide { grid-column: span 3; }
.b-card.hero-card {
  grid-column: span 3;
  background: linear-gradient(150deg, color-mix(in srgb, var(--accent) 9%, var(--card)), var(--card));
}
@media (max-width: 860px) { .b-card, .b-card.wide, .b-card.hero-card { grid-column: span 6; } }
.b-card .icon {
  display: inline-grid; place-items: center; width: 46px; height: 46px;
  border-radius: 13px; background: color-mix(in srgb, var(--accent) 10%, transparent);
  color: var(--accent); margin-bottom: 14px;
}
.b-card .icon svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.b-card h3 { font-size: 1.05rem; margin-bottom: 6px; letter-spacing: -0.01em; }
.b-card p { font-size: .92rem; color: var(--muted); }
.b-card .proof {
  margin-top: 14px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .68rem; color: var(--accent); background: var(--card-2);
  border-radius: 9px; padding: 8px 10px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* ── founder letter ── */
.letter {
  max-width: 720px; margin: 0 auto; background: var(--card);
  border: 1px solid var(--border); border-radius: 24px; padding: 44px 48px;
  box-shadow: var(--shadow); position: relative;
}
@media (max-width: 640px) { .letter { padding: 30px 24px; } }
.letter::before {
  content: "“"; position: absolute; top: 6px; left: 26px;
  font-family: var(--serif); font-size: 5rem; color: color-mix(in srgb, var(--accent) 30%, transparent);
  line-height: 1;
}
.letter p { margin-bottom: 18px; font-size: 1.02rem; }
.letter .aside { color: var(--muted); font-style: italic; }
.letter .sig { display: flex; align-items: center; gap: 14px; margin-top: 26px; }
.letter .sig .ava {
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(160deg, var(--accent), var(--accent-2));
  color: #fff; font-weight: 800; font-size: 1.05rem;
}
.letter .sig b { display: block; font-family: var(--serif); font-size: 1.1rem; }
.letter .sig small { color: var(--muted); }

/* ── compare table ── */
.table-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 20px;
  overflow: hidden; box-shadow: var(--shadow);
}
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
th, td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }
th { font-size: .76rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); background: var(--card-2); }
td.yes { color: var(--good); font-weight: 700; }
td.no { color: var(--bad); font-weight: 700; }
td.warn { color: var(--warn); font-weight: 700; }
tr.self td { background: color-mix(in srgb, var(--good) 6%, transparent); }
.table-note { font-size: .82rem; color: var(--muted); margin-top: 12px; }

/* ── honesty ── */
.honest {
  border-left: 4px solid var(--accent); background: var(--card);
  border-radius: 0 18px 18px 0; padding: 24px 28px; border-top: 1px solid var(--border);
  border-right: 1px solid var(--border); border-bottom: 1px solid var(--border);
}

/* ── faq ── */
details {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 18px 22px; margin-bottom: 10px;
}
summary { font-weight: 700; cursor: pointer; list-style: none; position: relative; padding-right: 28px; }
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  color: var(--accent); font-size: 1.3rem; font-weight: 600; transition: transform .18s ease;
}
details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
details p { margin-top: 10px; color: var(--muted); font-size: .95rem; }

/* ── final cta ── */
.final {
  text-align: center; margin: 72px 0 0; padding: 60px 24px;
  background: linear-gradient(150deg, color-mix(in srgb, var(--accent) 10%, var(--card)), var(--card));
  border: 1px solid var(--border); border-radius: 28px;
}

footer { padding: 44px 0 64px; margin-top: 40px; border-top: 1px solid var(--border); color: var(--muted); font-size: .88rem; text-align: center; }
footer a { color: var(--accent); text-decoration: none; }

/* ── nav scroll progress ── */
#navprog {
  position: absolute; left: 0; bottom: -1px; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .1s linear;
}

/* ── animated gradient ring on the primary CTA ── */
.cta.glow { position: relative; z-index: 0; }
.cta.glow::before {
  content: ""; position: absolute; inset: -2px; border-radius: 16px; z-index: -1;
  background: conic-gradient(from var(--ang, 0deg), var(--accent), var(--accent-2), #35c98e, var(--accent));
  animation: spin-ring 4s linear infinite;
  filter: blur(6px); opacity: .7;
}
@property --ang { syntax: "<angle>"; initial-value: 0deg; inherits: false; }
@keyframes spin-ring { to { --ang: 360deg; } }

/* ── the scan demo: beam sweeps thumbnails, finds the pair ── */
.scanstrip { margin-top: 54px; }
.scan-frame {
  position: relative; overflow: hidden;
  background: var(--card); border: 1px solid var(--border); border-radius: 20px;
  padding: 18px 18px 14px; box-shadow: var(--shadow);
}
.scan-head {
  display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 12px;
  font-family: ui-monospace, Menlo, monospace; font-size: .78rem; color: var(--muted);
}
.scan-head b { color: var(--fg); }
.scan-head .found { color: var(--good); font-weight: 700; }
.scan-row { display: grid; grid-template-columns: repeat(8, 1fr); gap: 10px; position: relative; }
@media (max-width: 720px) { .scan-row { grid-template-columns: repeat(4, 1fr); } }
.scan-ph {
  position: relative; aspect-ratio: 1; border-radius: 12px; overflow: hidden;
  border: 2px solid transparent; transition: border-color .3s ease, transform .3s ease;
}
.scan-ph img { width: 100%; height: 100%; object-fit: cover; display: block; }
.scan-ph.lit { border-color: var(--accent); }
.scan-ph.dup { border-color: var(--good); transform: scale(1.04); }
.scan-ph .tag {
  position: absolute; left: 4px; bottom: 4px; right: 4px;
  font-family: ui-monospace, Menlo, monospace; font-size: .56rem; text-align: center;
  color: #fff; background: rgba(10, 14, 22, .72); border-radius: 6px; padding: 2px 3px;
  opacity: 0; transition: opacity .25s ease;
}
.scan-ph.dup .tag, .scan-ph:hover .tag { opacity: 1; }
.scan-beam {
  position: absolute; top: 0; bottom: 0; width: 3px; left: -2%;
  background: linear-gradient(180deg, transparent, var(--accent), transparent);
  box-shadow: 0 0 18px 3px color-mix(in srgb, var(--accent) 55%, transparent);
  opacity: 0; pointer-events: none;
}
.scan-verdict {
  margin-top: 12px; text-align: center; font-size: .8rem; font-weight: 700; color: var(--good);
  font-family: ui-monospace, Menlo, monospace;
  opacity: 0; transform: translateY(4px); transition: opacity .4s ease, transform .4s ease;
}
.scan-verdict.on { opacity: 1; transform: none; }

/* scan demo: living-pipeline additions */
.scan-progress {
  height: 3px; border-radius: 2px; background: var(--card-2);
  margin: 0 0 14px; overflow: hidden;
}
.scan-progress i {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.scan-ph::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(105deg, transparent 38%, rgba(255,255,255,.4) 50%, transparent 62%);
  transform: translateX(-130%);
}
.scan-ph.lit::before { animation: ph-shimmer .5s ease; }
@keyframes ph-shimmer { to { transform: translateX(130%); } }
.scan-ph.cmp { border-color: var(--accent-2); }
.scan-ph.removed { opacity: .35; transform: scale(.82); filter: grayscale(1); }
.scan-ph .bin {
  position: absolute; top: 4px; left: 4px; right: 4px; z-index: 2;
  font-family: ui-monospace, Menlo, monospace; font-size: .54rem; text-align: center;
  color: #fff; background: rgba(10, 14, 22, .78); border-radius: 6px; padding: 2px 3px;
  opacity: 0; transition: opacity .3s ease;
}
.scan-ph.removed .bin { opacity: 1; }
#scanlink { position: absolute; inset: 0; pointer-events: none; z-index: 2; width: 100%; height: 100%; }
#scanlink path {
  stroke: var(--good); stroke-width: 2; fill: none;
  stroke-dasharray: 600; stroke-dashoffset: 600; stroke-linecap: round;
}
#scanlink.draw path { animation: drawlink .8s ease forwards; }
@keyframes drawlink { to { stroke-dashoffset: 0; } }
.scan-chips {
  display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; margin-top: 12px;
  font-family: ui-monospace, Menlo, monospace; font-size: .72rem; color: var(--muted);
}
.scan-chips b { color: var(--fg); font-variant-numeric: tabular-nums; }
.scan-chips .up b { color: var(--good); }

/* ── scrollytelling: sticky phone, story on the left ── */
.scrolly { display: grid; grid-template-columns: 1fr 400px; gap: 48px; }
@media (max-width: 860px) { .scrolly { grid-template-columns: 1fr; } .scrolly-phone { display: none; } }
.scrolly-steps { display: flex; flex-direction: column; }
.step {
  min-height: 68vh; display: flex; flex-direction: column; justify-content: center;
  opacity: .25; transition: opacity .4s ease;
}
.step.active { opacity: 1; }
.step .kicker {
  font-family: ui-monospace, Menlo, monospace; font-size: .78rem; font-weight: 800;
  letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px;
}
.step h3 { font-size: 1.6rem; letter-spacing: -0.02em; margin-bottom: 12px; }
.step p { color: var(--muted); max-width: 420px; }
.scrolly-phone { position: relative; }
.scrolly-stick { position: sticky; top: 90px; display: grid; place-items: center; }
.scrolly-stick .frame {
  width: 280px; border-radius: 44px; padding: 10px;
  background: linear-gradient(160deg, #2a2f3a, #10131a);
  box-shadow: var(--shadow), 0 30px 80px rgba(14, 30, 60, .25);
}
.scrolly-stick .frame-screen { border-radius: 36px; overflow: hidden; position: relative; line-height: 0; }
.scrolly-stick .frame-screen img {
  width: 100%; height: auto; display: block;
  position: absolute; inset: 0; opacity: 0; transition: opacity .45s ease;
}
.scrolly-stick .frame-screen img.base { position: relative; opacity: 0; }
.scrolly-stick .frame-screen img.show { opacity: 1; }
.scrolly-dots { display: flex; gap: 8px; justify-content: center; margin-top: 16px; }
.scrolly-dots span {
  width: 8px; height: 8px; border-radius: 50%; background: var(--border); transition: background .3s ease, transform .3s ease;
}
.scrolly-dots span.on { background: var(--accent); transform: scale(1.25); }

/* ── reveal on scroll ── */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .cta, .b-card { transition: none; }
}