:root {
  --accent: #0f766e;
  --bg: #f4f7f6;
  --card: #ffffff;
  --ink: #10201e;
  --muted: #5a6b69;
  --line: #d8e2e0;
  --err: #b42318;
  --warn-bg: #fff4d6;
  --warn-ink: #6b4a00;
  --radius: 18px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0d1514; --card: #15201e; --ink: #eaf2f0; --muted: #9bb0ad; --line: #2a3a38; --err: #ff8a7a; --warn-bg: #3a2f10; --warn-ink: #ffd98a; }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Tamil", sans-serif;
  background: var(--bg); color: var(--ink); min-height: 100vh; line-height: 1.45;
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}
[hidden] { display: none !important; }
code { background: var(--line); padding: 1px 6px; border-radius: 6px; font-size: .92em; word-break: break-all; }
.wrap { max-width: 460px; margin: 0 auto; padding: 18px 16px 40px; }

.banner { padding: 10px 16px; font-size: 14px; text-align: center; }
.banner.err { background: var(--err); color: #fff; }
.banner.warn { background: var(--warn-bg); color: var(--warn-ink); }

.biz { display: flex; align-items: center; gap: 14px; margin: 6px 0 18px; }
.logo { width: 52px; height: 52px; border-radius: 50%; background: var(--accent); color: #fff; display: grid; place-items: center; font-size: 24px; font-weight: 700; flex: none; }
h1 { font-size: 22px; margin: 0; }
h2 { font-size: 22px; margin: 6px 0 8px; }
h1:focus, h2:focus { outline: none; }
.sub { margin: 2px 0 0; color: var(--muted); font-size: 14px; }

.card { background: var(--card); border-radius: var(--radius); padding: 18px; box-shadow: 0 4px 22px rgba(0, 0, 0, .07); }
.center { text-align: center; }
.lbl { display: block; font-weight: 600; margin: 0 0 8px; font-size: 15px; }
.pick { margin: 22px 2px 10px; }

.amount-row { display: flex; align-items: center; gap: 8px; border: 2px solid var(--line); border-radius: 14px; padding: 4px 14px; min-height: 64px; }
.amount-row:focus-within { border-color: var(--accent); }
.rupee { font-size: 30px; font-weight: 700; }
#amount { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; color: inherit; font: inherit; font-size: 32px; font-weight: 700; padding: 8px 0; }
.fixed { font-size: 32px; font-weight: 700; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chips:empty { display: none; }
.chip-btn { border: 1px solid var(--line); background: transparent; color: var(--ink); border-radius: 999px; padding: 10px 16px; min-height: 44px; font-size: 16px; cursor: pointer; }
.chip-btn:active { background: var(--line); }
.err { color: var(--err); min-height: 1.3em; margin: 8px 0 0; font-size: 14px; }

.apps { display: grid; gap: 12px; }
.app { display: flex; align-items: center; gap: 16px; min-height: 68px; padding: 10px 16px; background: var(--card); color: var(--ink); text-decoration: none; border: 2px solid var(--line); border-radius: 16px; font-size: 19px; font-weight: 650; -webkit-tap-highlight-color: transparent; }
.app:active { transform: scale(.99); border-color: var(--accent); }
.app[aria-disabled="true"] { opacity: .45; }
.lbl2 { margin-top: 18px; font-size: 14px; }
.opt { font-weight: 400; color: var(--muted); }
.field { width: 100%; min-height: 52px; padding: 10px 14px; border: 2px solid var(--line); border-radius: 14px; background: transparent; color: inherit; font: inherit; font-size: 18px; }
.field:focus { outline: none; border-color: var(--accent); }
.theme-gold .field { background: #0d0c0b; }
.theme-gold .field:focus { border-color: var(--gold-2); }
.theme-gold .opt { color: var(--muted); }
/* primary "Pay securely" button */
.cta { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; min-height: 62px; margin: 16px 0 0; padding: 14px 18px; background: var(--accent); color: #fff; border: 0; border-radius: 16px; font: inherit; font-size: 20px; font-weight: 700; cursor: pointer; box-shadow: 0 8px 22px rgba(0, 0, 0, .18); -webkit-tap-highlight-color: transparent; }
.cta:active { transform: scale(.99); }
.cta[aria-disabled="true"] { opacity: .55; box-shadow: none; }
.cta:disabled { opacity: .7; cursor: progress; }
.cta:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.ico { width: 22px; height: 22px; fill: currentColor; flex: none; }
.methods { margin: 10px 2px 0; text-align: center; color: var(--muted); font-size: 13px; }
.trust { display: flex; gap: 8px; align-items: flex-start; margin: 14px 4px 0; color: var(--muted); font-size: 13px; }
.trust .ico { width: 18px; height: 18px; fill: var(--accent); margin-top: 1px; }
.app:focus-visible, .btn:focus-visible, .chip-btn:focus-visible, .mini:focus-visible, .link:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.chip { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-weight: 800; color: #fff; font-size: 20px; flex: none; }
.c-phonepe { background: #5f259f; }
.c-gpay { background: #1a73e8; }
.c-paytm { background: #0b5ea8; }
.c-other { background: #3a4a48; font-size: 13px; letter-spacing: .5px; }

.note, .hint { color: var(--muted); font-size: 14px; }
.manual { margin-top: 22px; color: var(--muted); font-size: 14px; }
.manual summary { cursor: pointer; padding: 10px 0; min-height: 44px; }
.upi-row { display: flex; gap: 10px; align-items: center; margin: 8px 0; }
.mini { border: 1px solid var(--accent); background: var(--accent); color: #fff; border-radius: 10px; padding: 8px 14px; min-height: 40px; cursor: pointer; font-size: 14px; }

.btn { display: block; width: 100%; min-height: 56px; margin-top: 12px; padding: 14px 16px; border-radius: 14px; border: 2px solid var(--accent); font-size: 18px; font-weight: 650; text-align: center; text-decoration: none; cursor: pointer; font-family: inherit; }
.btn.primary { background: var(--accent); color: #fff; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.wa { background: #1c7a43; border-color: #1c7a43; color: #fff; }
.link { display: block; margin: 18px auto 0; background: none; border: 0; color: var(--muted); text-decoration: underline; font-size: 15px; cursor: pointer; padding: 10px; min-height: 44px; font-family: inherit; }

.spin { width: 44px; height: 44px; border-radius: 50%; border: 4px solid var(--line); border-top-color: var(--accent); margin: 6px auto 10px; animation: sp 1s linear infinite; }
@keyframes sp { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spin { animation: none; } }
.big { font-size: 30px; font-weight: 800; margin: 10px 0 4px; }
.warnbox { background: var(--warn-bg); color: var(--warn-ink); padding: 10px 12px; border-radius: 12px; text-align: left; }

.thanks h2 { font-size: 28px; }
.thanks p { margin: 6px 0; }
.tbiz { font-size: 22px; font-weight: 800; margin-top: 16px !important; }
.tphone { font-size: 22px; }
.tphone a { color: var(--accent); text-decoration: none; font-weight: 700; }
.two { display: grid; gap: 0; margin-top: 6px; }
.saved { color: var(--accent); font-weight: 600; min-height: 1.3em; }
.neutral { margin-top: 14px; padding: 12px 14px; background: var(--bg); border-radius: 14px; text-align: left; font-size: 14px; color: var(--muted); }
.neutral p { margin: 4px 0; }
.ref { font-family: ui-monospace, Consolas, monospace; }

/* paid state + receipt */
.paid { margin: 4px 0 6px; }
.tick { width: 72px; height: 72px; display: block; margin: 0 auto 6px; }
.tick circle { fill: #1c7a43; }
.tick path { fill: none; stroke: #fff; stroke-width: 4.5; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 40; stroke-dashoffset: 40; animation: draw .6s .15s ease-out forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) { .tick path { animation: none; stroke-dashoffset: 0; } }
.paid-label { margin: 0; font-size: 20px; font-weight: 800; color: #1c7a43; }
.paid-note { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.receipt { margin-top: 16px; padding: 14px; background: var(--bg); border-radius: 14px; text-align: left; font-size: 15px; }
.rc-title { margin: 0 0 8px; font-weight: 800; font-size: 13px; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); }
.receipt dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0 0 6px; }
.receipt dt { color: var(--muted); }
.receipt dd { margin: 0; text-align: right; font-weight: 650; word-break: break-all; }
.btn.small { min-height: 46px; font-size: 15px; margin-top: 10px; padding: 10px 12px; }

/* footer */
.foot { margin-top: 26px; text-align: center; color: var(--muted); font-size: 13px; }
.foot p { margin: 2px 0; }
.foot-biz { font-weight: 700; color: var(--ink); }
.foot a { color: var(--muted); }

/* terms page */
.doc { background: var(--card); border-radius: var(--radius); padding: 20px; box-shadow: 0 4px 22px rgba(0, 0, 0, .07); }
.doc h1 { font-size: 22px; margin: 0 0 6px; }
.doc h2 { font-size: 17px; margin: 22px 0 6px; }
.doc p, .doc li { font-size: 15px; color: var(--ink); }
.doc ul { padding-left: 20px; margin: 6px 0; }
.back { display: inline-block; margin: 0 0 14px; color: var(--accent); text-decoration: none; font-weight: 650; }

/* ===== Theme "gold" - Manisha Cabs black + gold (palette taken from its tariff site, no external fonts) ===== */
body.theme-gold {
  --bg: #0a0a0a; --card: #121110; --ink: #efe9dc; --muted: #b8b09c; --line: #2a2419;
  --accent: #d4a94a; --err: #e05252; --warn-bg: #2a2210; --warn-ink: #f6dd8f;
  --gold-1: #f6dd8f; --gold-2: #d4a94a; --gold-3: #b8860b;
}
.theme-gold .card { border: 1px solid var(--line); box-shadow: 0 0 40px rgba(212, 169, 74, .06); }
.theme-gold h1, .theme-gold h2, .theme-gold .tbiz {
  font-family: Georgia, "Palatino Linotype", "Book Antiqua", "Noto Serif", serif;
  text-transform: uppercase; letter-spacing: 2px; color: var(--gold-1);
}
.theme-gold h1, .theme-gold .tbiz {       /* gradient text only where there is no emoji (emoji would turn into a gold silhouette) */
  background: linear-gradient(180deg, var(--gold-1), var(--gold-2) 50%, var(--gold-3));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent;
}
.theme-gold h1 { font-size: 22px; } .theme-gold h2 { font-size: 21px; letter-spacing: 1.5px; } .theme-gold .thanks h2 { font-size: 24px; }
.theme-gold .tbiz { font-size: 22px; }
.theme-gold .sub { font-style: italic; font-family: Georgia, "Palatino Linotype", serif; color: var(--gold-label, #b89a5a); }
.theme-gold .logo {
  background: transparent; border: 2px solid var(--gold-2); color: var(--gold-1);
  font-family: Georgia, "Palatino Linotype", serif; font-size: 22px; letter-spacing: 1px;
  box-shadow: 0 0 24px rgba(212, 169, 74, .25), inset 0 0 14px rgba(212, 169, 74, .12);
}
.theme-gold .amount-row { border-color: var(--line); background: #0d0c0b; }
.theme-gold .amount-row:focus-within { border-color: var(--gold-2); }
.theme-gold .lbl { color: var(--gold-2); letter-spacing: .5px; }
.theme-gold .chip-btn { border-color: #3a3122; color: var(--gold-1); }
.theme-gold .chip-btn:active { background: #2a2419; }
.theme-gold .app { background: var(--card); border-color: #3a3122; color: var(--ink); }
.theme-gold .app:active { border-color: var(--gold-2); }
.theme-gold .cta { background: linear-gradient(180deg, var(--gold-1), var(--gold-2) 55%, var(--gold-3)); color: #1a1306; box-shadow: 0 8px 26px rgba(212, 169, 74, .22); }
.theme-gold .cta:focus-visible { outline-color: var(--gold-1); }
.theme-gold .trust .ico { fill: var(--gold-2); }
.theme-gold .paid-label { color: #46d27f; }
.theme-gold .tick circle { fill: #1c7a43; }
.theme-gold .receipt { background: #0d0c0b; border: 1px solid var(--line); }
.theme-gold .foot a, .theme-gold .back { color: var(--gold-1); }
.theme-gold .doc { border: 1px solid var(--line); box-shadow: none; }
.theme-gold .doc h1, .theme-gold .doc h2 { font-family: Georgia, "Palatino Linotype", serif; color: var(--gold-1); letter-spacing: 1px; text-transform: none; -webkit-text-fill-color: currentColor; background: none; }
.theme-gold .doc h1 { text-transform: uppercase; font-size: 21px; }
.theme-gold .btn.primary { background: linear-gradient(180deg, var(--gold-1), var(--gold-2) 55%, var(--gold-3)); border-color: var(--gold-2); color: #1a1306; }
.theme-gold .btn.ghost { color: var(--gold-1); border-color: var(--gold-2); }
.theme-gold .btn.wa { background: #1c7a43; border-color: #25c368; color: #fff; }
.theme-gold .mini { background: var(--gold-2); border-color: var(--gold-2); color: #1a1306; }
.theme-gold .tphone a { color: var(--gold-1); }
.theme-gold .saved { color: var(--gold-1); }
.theme-gold .neutral { background: #0d0c0b; border: 1px solid var(--line); }
.theme-gold .spin { border-color: #2a2419; border-top-color: var(--gold-2); }
.theme-gold .big { color: var(--gold-1); }
.theme-gold .link, .theme-gold .manual summary { color: var(--muted); }
.theme-gold code { background: #1d1a14; color: var(--gold-1); }
.theme-gold .app:focus-visible, .theme-gold .btn:focus-visible, .theme-gold .chip-btn:focus-visible, .theme-gold .mini:focus-visible,
.theme-gold .link:focus-visible, .theme-gold summary:focus-visible { outline-color: var(--gold-1); }

/* info pages: nav + tariff tables */
.sitenav { display: flex; flex-wrap: wrap; gap: 6px 14px; margin: 0 0 14px; font-size: 14px; }
.sitenav a { color: var(--muted); text-decoration: none; padding: 4px 0; border-bottom: 2px solid transparent; }
.sitenav a[aria-current="page"] { color: var(--accent); border-bottom-color: var(--accent); font-weight: 650; }
.theme-gold .sitenav a[aria-current="page"] { color: var(--gold-1); border-bottom-color: var(--gold-2); }
.doc table.tariff { width: 100%; border-collapse: collapse; margin: 8px 0 4px; font-size: 14px; }
.doc table.tariff th, .doc table.tariff td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line, #e5e7eb); vertical-align: top; }
.doc table.tariff th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
.doc .btn { text-decoration: none; }
.doc-foot { margin-top: 18px; text-align: center; color: var(--muted); font-size: 13px; }
.doc-foot a { color: var(--muted); }
.theme-gold .doc-foot a { color: var(--gold-1); }
.doc a:not(.btn) { color: var(--accent); }
.theme-gold .doc a:not(.btn) { color: var(--gold-1); }