/* Nepali Number to Words — mobile-first styles (no external dependencies) */
:root {
  --crimson: #c8163a;
  --crimson-dark: #a11230;
  --navy: #0b1e3a;
  --bg: #f6f7fb;
  --card: #ffffff;
  --ink: #172033;
  --muted: #667085;
  --line: #e6e9f2;
  --ring: rgba(200, 22, 58, 0.16);
  --radius: 16px;
  --maxw: 680px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Noto Sans", "Noto Sans Devanagari", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
}

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--navy); color: #fff; padding: 8px 14px; z-index: 99;
}
.skip-link:focus { left: 8px; top: 8px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }

.site-header {
  background: linear-gradient(120deg, var(--crimson) 0%, var(--navy) 130%);
  color: #fff;
  padding: 14px 0;
  position: sticky; top: 0; z-index: 10;
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; }
.brand em { font-style: normal; opacity: 0.85; font-weight: 400; }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 10px;
  background: #fff; color: var(--crimson);
  font-size: 1.05rem; font-weight: 800;
}
.install-btn {
  border: 1px solid rgba(255,255,255,0.55); background: rgba(255,255,255,0.14);
  color: #fff; border-radius: 999px; padding: 8px 16px;
  font-size: 0.9rem; font-weight: 600; cursor: pointer;
}
.install-btn:hover { background: rgba(255,255,255,0.28); }

.hero { padding: 28px 0 6px; text-align: center; }
.hero h1 { font-size: 1.65rem; margin: 0 0 10px; letter-spacing: -0.02em; }
.lede { color: var(--muted); margin: 0 auto; max-width: 56ch; font-size: 1.02rem; }

.card {
  background: var(--card); border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(11, 30, 58, 0.08);
  padding: 22px 18px; margin: 20px 0;
}

.field-label { display: block; font-weight: 700; margin-bottom: 8px; }
.input-row { display: flex; gap: 10px; }
.number-input {
  flex: 1; min-width: 0;
  font-size: 1.25rem; padding: 13px 14px;
  border: 2px solid var(--line); border-radius: 12px; outline: none;
  font-variant-numeric: tabular-nums;
}
.number-input:focus { border-color: var(--crimson); box-shadow: 0 0 0 4px var(--ring); }
.btn-primary {
  padding: 0 22px; font-size: 1.05rem; font-weight: 700;
  color: #fff; background: var(--crimson); border: none; border-radius: 12px;
  cursor: pointer; white-space: nowrap;
}
.btn-primary:hover { background: var(--crimson-dark); }
.btn-primary:active { transform: translateY(1px); }

.hint { color: var(--muted); font-size: 0.85rem; margin: 8px 0 0; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 12px; font-size: 0.9rem; color: var(--muted); }
.chip {
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  border-radius: 999px; padding: 6px 14px; font-size: 0.88rem; cursor: pointer;
  font-variant-numeric: tabular-nums;
}
.chip:hover { border-color: var(--crimson); color: var(--crimson); }

.error {
  margin: 14px 0 0; padding: 10px 14px; border-radius: 10px;
  background: #fdeef1; color: var(--crimson-dark); font-size: 0.92rem;
}

.outputs { display: grid; gap: 14px; margin-top: 18px; }
.output-block { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.output-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; background: #fafbfd; border-bottom: 1px solid var(--line);
}
.output-head h2 { font-size: 0.95rem; margin: 0; }
.btn-copy {
  border: 1px solid var(--line); background: #fff; border-radius: 8px;
  padding: 6px 14px; font-size: 0.85rem; font-weight: 600; cursor: pointer; color: var(--navy);
}
.btn-copy:hover { border-color: var(--crimson); color: var(--crimson); }
.output {
  display: block; width: 100%; min-height: 76px; padding: 14px;
  font-size: 1.12rem; line-height: 1.6;
}
.output.nepali { font-size: 1.2rem; }

.how h2, .faq h2 { margin-top: 0; font-size: 1.25rem; }
.how ol { margin: 0; padding-left: 22px; }
.how li { margin-bottom: 8px; }
.note { color: var(--muted); font-size: 0.92rem; }

.faq details {
  border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px; margin-bottom: 10px;
}
.faq summary { font-weight: 700; cursor: pointer; }
.faq details p { margin: 8px 0 0; color: var(--muted); }
.faq details p span[lang="ne"] { color: var(--ink); }

.site-footer { padding: 18px 0 34px; color: var(--muted); font-size: 0.88rem; text-align: center; }
.credit { margin: 6px 0 0; }
.credit a { color: var(--crimson); font-weight: 700; text-decoration: none; }
.credit a:hover { text-decoration: underline; }

@media (min-width: 560px) {
  .hero h1 { font-size: 2.1rem; }
  .card { padding: 28px 26px; }
  .outputs { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}