/* DuePing site: paper background, white cards with hairline borders, one warm accent, Instrument Serif headings.
   Mirrors the app (src/lib/theme.ts) and the promo thumbnails. */
@font-face { font-family: "Instrument Serif"; src: url(/fonts/instrument-serif.ttf) format("truetype"); font-style: normal; font-display: swap; }
@font-face { font-family: "Instrument Serif"; src: url(/fonts/instrument-serif-italic.ttf) format("truetype"); font-style: italic; font-display: swap; }

:root {
  --bg: #f4f3ef; --surface: #ffffff; --fg: #1c1b19; --muted: #6b6a64; --faint: #c8c4bb;
  --line: #e7e4dd; --chip: #f1efea; --accent: #ee6a3c; --accent-soft: #fceae2; --on-accent: #fff;
  --done: #3e8e5e; --ink: #1c1b19; --on-ink: #f4f3ef;
  --shadow: 0 30px 80px rgba(28, 27, 25, .18);
}
:root { color-scheme: light dark; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f0f0e; --surface: #1a1a18; --fg: #f1f0ec; --muted: #9a988f; --faint: #47463f;
    --line: #2a2926; --chip: #232220; --accent: #ff7a4d; --accent-soft: #3a2118; --on-accent: #1c1b19;
    --ink: #f4f3ef; --on-ink: #1c1b19; --shadow: 0 30px 80px rgba(0, 0, 0, .55);
  }
}
:root[data-theme="dark"] {
  --bg: #0f0f0e; --surface: #1a1a18; --fg: #f1f0ec; --muted: #9a988f; --faint: #47463f;
    --line: #2a2926; --chip: #232220; --accent: #ff7a4d; --accent-soft: #3a2118; --on-accent: #1c1b19;
    --ink: #f4f3ef; --on-ink: #1c1b19; --shadow: 0 30px 80px rgba(0, 0, 0, .55);
}
:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.65 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); }
img { max-width: 100%; display: block; }
.serif, h1, h2, h3.serif { font-family: "Instrument Serif", Georgia, serif; font-weight: 400; letter-spacing: -.015em; }
em { font-style: italic; color: var(--accent); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---- top bar ---- */
.bar { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(14px); border-bottom: 1px solid transparent; }
.bar .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--fg); text-decoration: none; font-weight: 700; font-size: 18px; letter-spacing: -.01em; }
.brand svg, .brand img { width: 38px; height: 38px; }
.bar nav { display: flex; gap: 6px; align-items: center; }
.bar nav a { color: var(--muted); text-decoration: none; font-weight: 500; font-size: 15px; padding: 8px 14px; border-radius: 99px; }
.bar nav a:hover { background: var(--chip); color: var(--fg); }
.bar nav a.pill { background: var(--ink); color: var(--on-ink); }
.theme-toggle { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line); background: var(--surface); color: var(--fg); display: inline-flex; align-items: center; justify-content: center; cursor: pointer; margin-left: 6px; padding: 0; transition: background .2s, transform .2s; }
.theme-toggle:hover { background: var(--chip); }
.theme-toggle:active { transform: scale(.94); }
.theme-toggle svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.theme-toggle .sun { display: none; }
.theme-toggle[data-mode="dark"] .sun { display: block; }
.theme-toggle[data-mode="dark"] .moon { display: none; }
.bar nav a.pill:hover { background: var(--ink); opacity: .86; }
@media (max-width: 640px) { .bar nav a:not(.pill) { display: none; } }

/* ---- hero ---- */
.hero { padding: 56px 0 24px; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(56px, 8.4vw, 116px); line-height: .96; margin: 0 0 24px; }
.hero p.lead { font-size: clamp(18px, 2vw, 22px); color: var(--muted); max-width: 30em; margin: 0 0 32px; line-height: 1.5; }
.badges { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.badges span.k { color: var(--muted); font-weight: 500; margin-right: 4px; }
.badge { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 99px; font-weight: 600; font-size: 16px; background: var(--surface); border: 1px solid var(--line); color: var(--fg); }
.badge.dark { background: var(--ink); color: var(--on-ink); border-color: var(--ink); }
.hero .shot { display: flex; justify-content: center; }
@media (max-width: 860px) { .hero .wrap { grid-template-columns: 1fr; text-align: center; } .hero p.lead { margin-inline: auto; } .badges { justify-content: center; } }

/* ---- phone with a spotlight: everything softly blurred except one lit area ---- */
.phone { position: relative; width: min(100%, 330px); padding: 6px; background: #1c1b19; border-radius: 52px; box-shadow: var(--shadow), inset 0 0 0 1px rgba(255, 255, 255, .2); rotate: var(--tilt, 0deg); transition: rotate .4s cubic-bezier(.16, 1, .3, 1); }
.phone:hover { rotate: 0deg; }
.phone .screen { position: relative; overflow: hidden; border-radius: 46px; aspect-ratio: 1206 / 2622; background: #faf9f6; }
.phone .screen > img { width: 100%; height: 100%; object-fit: cover; }
.phone .screen > img.base { filter: blur(2.5px) brightness(.8) saturate(.85); }
.phone .spot { position: absolute; left: calc(var(--x) * 100%); top: calc(var(--y) * 100%); width: calc(var(--w) * 100%); height: calc(var(--h) * 100%); overflow: hidden; border-radius: 16px; box-shadow: 0 0 0 2px var(--accent), 0 0 40px color-mix(in srgb, var(--accent) 45%, transparent); }
.phone .spot img { position: absolute; width: calc(100% / var(--w)); height: calc(100% / var(--h)); left: calc(-100% * var(--x) / var(--w)); top: calc(-100% * var(--y) / var(--h)); max-width: none; }
.phone.dark { box-shadow: 0 30px 80px rgba(0, 0, 0, .5), inset 0 0 0 1px rgba(255, 255, 255, .22); }

/* ---- feature rows ---- */
.feature { padding: 72px 0; }
.feature .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.feature.flip .shot { order: 2; }
.feature .shot { display: flex; justify-content: center; }
.eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--accent); margin: 0 0 14px; }
.feature h2 { font-size: clamp(40px, 5.4vw, 72px); line-height: 1; margin: 0 0 18px; }
.feature p { color: var(--muted); font-size: 18px; max-width: 30em; margin: 0 0 18px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.chip { background: var(--surface); border: 1px solid var(--line); border-radius: 99px; padding: 8px 16px; font-size: 15px; font-weight: 500; color: var(--fg); }
.chip i { font-style: normal; color: var(--accent); font-weight: 600; }
@media (max-width: 860px) { .feature { padding: 44px 0; } .feature .wrap { grid-template-columns: 1fr; gap: 36px; text-align: center; } .feature.flip .shot { order: 0; } .feature p { margin-inline: auto; } .chips { justify-content: center; } }

/* ---- pricing strip + final call ---- */
.plans { padding: 40px 0 24px; }
.plans .grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 28px; padding: 28px; }
.card h3 { font-family: "Instrument Serif", Georgia, serif; font-weight: 400; font-size: 34px; line-height: 1.05; margin: 0 0 8px; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--muted); }
.card .big { font-family: "Instrument Serif", Georgia, serif; font-size: 64px; line-height: 1; color: var(--accent); margin-bottom: 8px; }
@media (max-width: 860px) { .plans .grid { grid-template-columns: 1fr; } }
.final { text-align: center; padding: 88px 0 72px; }
.final svg { width: 96px; height: 96px; margin: 0 auto 20px; filter: drop-shadow(0 14px 22px rgba(28, 27, 25, .28)); }
.final h2 { font-size: clamp(52px, 8vw, 104px); line-height: .96; margin: 0 0 16px; }
.final p { color: var(--muted); font-size: 20px; margin: 0 0 28px; }

/* ---- footer ---- */
footer.site { border-top: 1px solid var(--line); padding: 28px 0 48px; font-size: 14px; color: var(--muted); }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 10px 24px; justify-content: space-between; }
footer.site a { color: var(--muted); text-decoration: none; }
footer.site a:hover { color: var(--fg); text-decoration: underline; }

/* ---- legal documents ---- */
.doc { max-width: 780px; margin: 0 auto; padding: 48px 24px 24px; }
.doc h1 { font-size: clamp(48px, 7vw, 76px); line-height: 1; margin: 0 0 14px; }
.doc .muted { color: var(--muted); }
.doc h2 { font-size: 34px; line-height: 1.1; margin: 52px 0 12px; scroll-margin-top: 88px; }
.doc p, .doc li { color: color-mix(in srgb, var(--fg) 88%, var(--bg)); }
.doc ul, .doc ol { padding-left: 22px; }
.doc li { margin: 6px 0; }
nav.toc { background: var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: 20px 26px; margin: 28px 0; font-size: 15px; }
nav.toc b { font-size: 12px; letter-spacing: .09em; text-transform: uppercase; color: var(--muted); }
nav.toc ol { margin: 10px 0 0; padding-left: 20px; columns: 2; column-gap: 32px; }
nav.toc a { color: var(--fg); text-decoration: none; }
nav.toc a:hover { color: var(--accent); }
@media (max-width: 640px) { nav.toc ol { columns: 1; } }
.table { overflow-x: auto; background: var(--surface); border: 1px solid var(--line); border-radius: 20px; margin: 14px 0; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
td, th { padding: 12px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
tr:last-child td { border-bottom: 0; }
th { background: var(--chip); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .phone { transition: none; } }