/* VietLove — vietlove.org
   Plain static CSS. Light + dark auto via prefers-color-scheme.
   Body: Be Vietnam Pro (full Vietnamese diacritics). Display: Playfair Display.
   Palette: lacquer red + warm gold on soft cream / ink. */

:root {
  color-scheme: light dark;
  --wrap: 68rem;
  --space: clamp(1.1rem, 4vw, 2.5rem);

  --font-body: "Be Vietnam Pro", system-ui, -apple-system, Segoe UI, sans-serif;
  --font-display: "Playfair Display", Georgia, "Times New Roman", serif;

  /* light */
  --bg: #fbf5ec;
  --bg-deep: #f3e8d6;
  --card: #fffdf8;
  --ink: #2a2018;
  --ink-soft: #6f6052;
  --accent: #b91c1c;
  --accent-deep: #8e1b13;
  --gold: #b3842c;
  --gold-soft: #d4a017;
  --line: rgba(42, 32, 24, .14);
  --line-soft: rgba(42, 32, 24, .07);

  --hero-bg:
    linear-gradient(180deg, rgba(20, 12, 8, .26), rgba(20, 12, 8, .78)),
    radial-gradient(135% 120% at 74% 6%, #c14a2f, #8e1b13 58%, #4a0d07);
  --hero-ink: #fff;
  --hero-soft: #fdeedd;
  --hero-eyebrow: #f3d9a8;

  --btn-bg: var(--gold-soft);
  --btn-ink: #2a1a05;
  --btn-bg-hover: #c79636;

  --radius: 18px;
  --shadow: 0 1px 2px rgba(42, 32, 24, .05), 0 18px 40px -24px rgba(42, 32, 24, .35);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1310;
    --bg-deep: #241a15;
    --card: #221813;
    --ink: #f4e9dc;
    --ink-soft: #bca893;
    --accent: #e05646;
    --accent-deep: #d4493a;
    --gold: #d8a93f;
    --gold-soft: #e0b652;
    --line: rgba(255, 240, 220, .14);
    --line-soft: rgba(255, 240, 220, .06);

    --hero-bg:
      linear-gradient(180deg, rgba(10, 6, 4, .35), rgba(10, 6, 4, .86)),
      radial-gradient(135% 120% at 74% 6%, #a13b24, #4c0d07 58%, #220603);
    --btn-bg: var(--gold-soft);
    --btn-ink: #241405;
    --btn-bg-hover: #eec76a;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 22px 50px -28px rgba(0, 0, 0, .7);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; display: block; }

a { color: inherit; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--space);
}

.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent-deep);
  color: #fff;
  padding: .6rem 1rem;
  border-radius: 0 0 10px 0;
  z-index: 50;
}
.skip:focus { left: 0; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.topbar .wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 62px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-weight: 700;
  letter-spacing: -.01em;
  text-decoration: none;
  font-size: 1.12rem;
}
.brand svg { width: 26px; height: 26px; flex: 0 0 auto; }
.brand b { color: var(--accent); }
.brand i { color: var(--gold); font-style: normal; }

.lang {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: .15rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .18rem;
  background: var(--card);
}
.lang a {
  text-decoration: none;
  font-size: .82rem;
  font-weight: 600;
  color: var(--ink-soft);
  padding: .3rem .62rem;
  border-radius: 999px;
  line-height: 1;
}
.lang a[aria-current="true"] {
  background: var(--accent);
  color: #fff;
}

/* ---------- buttons ---------- */
.btn {
  --b: var(--btn-bg);
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  padding: .85rem 1.4rem;
  border-radius: 999px;
  background: var(--b);
  color: var(--btn-ink);
  border: 1px solid transparent;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
  box-shadow: 0 8px 20px -12px color-mix(in srgb, var(--b) 70%, transparent);
}
.btn:hover { background: var(--btn-bg-hover); transform: translateY(-1px); }
.btn:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }

.btn.ghost {
  background: transparent;
  color: var(--hero-ink);
  border-color: color-mix(in srgb, var(--hero-ink) 45%, transparent);
  box-shadow: none;
}
.btn.ghost:hover {
  background: color-mix(in srgb, var(--hero-ink) 12%, transparent);
}

.btn.outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--line);
  box-shadow: none;
}
.btn.outline:hover {
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  border-color: var(--accent);
}

/* ---------- hero ---------- */
.hero {
  background: var(--hero-bg);
  color: var(--hero-ink);
  position: relative;
  overflow: hidden;
}
.hero .wrap {
  padding-block: clamp(3.5rem, 11vw, 7rem);
  position: relative;
  z-index: 1;
}
.hero .eyebrow { color: var(--hero-eyebrow); }
.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.4rem, 7vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -.015em;
  margin: .55rem 0 1.1rem;
  max-width: 16ch;
}
.hero h1 .em { color: var(--hero-eyebrow); font-style: italic; }
.hero .lede {
  font-size: clamp(1.08rem, 2.6vw, 1.35rem);
  color: var(--hero-soft);
  max-width: 46ch;
  margin: 0 0 1.9rem;
}
.hero .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
}
.hero .note {
  margin-top: 1.5rem;
  font-size: .88rem;
  color: color-mix(in srgb, var(--hero-soft) 88%, transparent);
}
/* faint chopstick/lotus motif */
.hero::after {
  content: "";
  position: absolute;
  right: -8%;
  top: -12%;
  width: 46%;
  min-width: 320px;
  aspect-ratio: 1;
  background:
    radial-gradient(closest-side, rgba(255, 220, 170, .22), transparent 70%);
  pointer-events: none;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .76rem;
  font-weight: 700;
  margin: 0;
}

/* ---------- sections ---------- */
section { padding-block: clamp(3rem, 9vw, 5.5rem); }
.section-head { max-width: 52ch; margin-bottom: 2.2rem; }
.section-head .eyebrow { color: var(--accent); }
h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.8rem, 4.5vw, 2.7rem);
  line-height: 1.12;
  letter-spacing: -.012em;
  margin: .5rem 0 .7rem;
}
.section-head p {
  font-size: 1.1rem;
  color: var(--ink-soft);
  margin: 0;
}

.alt { background: var(--bg-deep); }

/* ---------- mission lines ---------- */
.mission p {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.35rem, 3.4vw, 2rem);
  line-height: 1.35;
  letter-spacing: -.01em;
  max-width: 24ch;
  margin: 0 auto;
  text-align: center;
}
.mission .accent { color: var(--accent); }
.mission .gold { color: var(--gold); }

/* ---------- steps grid ---------- */
.grid {
  display: grid;
  gap: 1.1rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}
.card {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem;
  box-shadow: var(--shadow);
}
.card .step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
  font-weight: 800;
  font-size: .95rem;
  margin-bottom: .9rem;
}
.card h3 {
  font-size: 1.18rem;
  margin: 0 0 .4rem;
  letter-spacing: -.01em;
}
.card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: .98rem;
}

/* feature chips */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.8rem;
}
.chip {
  font-size: .85rem;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .42rem .85rem;
}
.chip b { color: var(--accent); font-weight: 700; }

/* ---------- showcase ---------- */
.showcase-card {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: calc(var(--radius) + 6px);
  padding: clamp(1.4rem, 4vw, 2.6rem);
  box-shadow: var(--shadow);
}
@media (max-width: 720px) {
  .showcase-card { grid-template-columns: 1fr; }
}
.showcase-card .badge {
  display: inline-block;
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: .6rem;
}
.showcase-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  margin: 0 0 .55rem;
  letter-spacing: -.01em;
}
.showcase-card p { color: var(--ink-soft); margin: 0 0 1.4rem; }
.showcase-card .cta-row { display: flex; flex-wrap: wrap; gap: .7rem; }

/* mini browser mock for showcase */
.mock {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg);
  box-shadow: 0 18px 40px -26px rgba(0, 0, 0, .45);
}
.mock .bar {
  display: flex;
  align-items: center;
  gap: .35rem;
  padding: .55rem .7rem;
  background: var(--bg-deep);
  border-bottom: 1px solid var(--line-soft);
}
.mock .bar i { width: 9px; height: 9px; border-radius: 999px; background: var(--line); display: block; }
.mock .bar .url {
  margin-left: .5rem;
  font-size: .72rem;
  color: var(--ink-soft);
  background: var(--card);
  border-radius: 999px;
  padding: .2rem .65rem;
}
.mock .frame {
  aspect-ratio: 16 / 11;
  background:
    linear-gradient(180deg, rgba(20, 12, 8, .15), rgba(20, 12, 8, .72)),
    radial-gradient(120% 110% at 70% 0%, #c14a2f, #6c120b 65%);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.1rem 1.2rem;
}
.mock .frame .k {
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #f3d9a8;
  margin: 0 0 .25rem;
}
.mock .frame .t {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
}
.mock .frame .pill {
  margin-top: .7rem;
  align-self: flex-start;
  font-size: .72rem;
  font-weight: 700;
  background: var(--gold-soft);
  color: #2a1a05;
  border-radius: 999px;
  padding: .3rem .75rem;
}

/* ---------- community / coming soon ---------- */
.soon {
  text-align: center;
}
.soon .pill-now {
  display: inline-block;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: 999px;
  padding: .42rem 1rem;
  margin-bottom: 1.2rem;
}
.soon h2 { margin-inline: auto; }
.soon p { color: var(--ink-soft); max-width: 48ch; margin: 0 auto 1.8rem; font-size: 1.1rem; }

/* ---------- footer ---------- */
footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--line-soft);
  padding-block: clamp(2.5rem, 6vw, 3.5rem);
}
.foot-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  align-items: flex-start;
  justify-content: space-between;
}
.foot-brand { max-width: 30ch; }
.foot-brand p { color: var(--ink-soft); font-size: .95rem; margin: .6rem 0 0; }
.foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem 2rem;
}
.foot-links a {
  text-decoration: none;
  font-weight: 600;
  font-size: .95rem;
  color: var(--ink);
  border-bottom: 1px solid transparent;
}
.foot-links a:hover { color: var(--accent); border-bottom-color: var(--accent); }
.colophon {
  margin-top: 2rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.2rem;
  justify-content: space-between;
  align-items: center;
  font-size: .85rem;
  color: var(--ink-soft);
}
.colophon a { color: var(--accent); text-decoration: none; font-weight: 600; }
.colophon a:hover { text-decoration: underline; }
.heart { color: var(--accent); }