/* Apna Pay homepage — mobile-first (320–430px first). */

:root {
  /* Brand (sampled from the official logo) */
  --blue: #0151ef;
  --blue-600: #0043c8;
  --blue-50: #eef4ff;
  --blue-100: #dce8ff;
  --green: #0cc97f;
  --green-700: #08875a;   /* green text on white: AA contrast */
  --green-50: #e8faf2;
  --navy: #0d1838;
  --navy-70: #43506f;
  --navy-50: #5d6987;
  --line: #e3e9f5;
  --tint: #f5f8ff;

  --gradient: linear-gradient(120deg, var(--blue) 0%, #1d7bf2 45%, var(--green) 100%);
  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 28px;
  --shadow-sm: 0 1px 2px rgba(13, 24, 56, .06), 0 2px 8px rgba(13, 24, 56, .04);
  --shadow: 0 2px 6px rgba(13, 24, 56, .05), 0 12px 32px -8px rgba(1, 81, 239, .14);
  --shadow-lg: 0 24px 60px -18px rgba(1, 81, 239, .28);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", Arial, sans-serif;
  --header-h: 64px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--navy);
  background: #fff;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: var(--blue); }
h1, h2, h3 { line-height: 1.2; margin: 0; letter-spacing: -.02em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon {
  width: 1.25em; height: 1.25em; flex: none;
  fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: 8px; }

.skip-link {
  position: absolute; left: 12px; top: -48px; z-index: 100;
  padding: 10px 16px; border-radius: 10px; background: var(--navy); color: #fff; font-weight: 600;
}
.skip-link:focus { top: 12px; }

.container { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 16px; }
.container.narrow { max-width: 780px; }
.center { text-align: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 12px 22px; border-radius: 14px; border: 1.5px solid transparent;
  font-weight: 700; font-size: 1rem; line-height: 1.2; text-decoration: none; cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background-color .2s, border-color .2s;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(.98); }
.btn-primary {
  color: #fff; background: var(--blue);
  background-image: linear-gradient(135deg, var(--blue) 0%, #1466ff 100%);
  box-shadow: 0 8px 20px -8px rgba(1, 81, 239, .6);
}
.btn-primary:hover { box-shadow: 0 12px 26px -8px rgba(1, 81, 239, .7); }
.btn-ghost { color: var(--navy); background: #fff; border-color: var(--line); box-shadow: var(--shadow-sm); }
.btn-ghost:hover { border-color: var(--blue-100); color: var(--blue); }
.btn-sm { min-height: 42px; padding: 8px 14px; font-size: .9375rem; border-radius: 12px; }
.btn-lg { min-height: 56px; padding: 14px 26px; font-size: 1.0625rem; border-radius: 16px; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .9);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--navy); min-width: 0; }
.brand-mark { width: 46px; }
.brand-name { font-weight: 800; font-size: 1.125rem; white-space: nowrap; }
.site-nav { display: none; }

/* ---------- Hero ---------- */
.hero {
  padding: 28px 0 56px;
  background:
    radial-gradient(60% 50% at 85% 10%, rgba(12, 201, 127, .14), transparent 70%),
    radial-gradient(70% 60% at 0% 0%, rgba(1, 81, 239, .12), transparent 70%),
    linear-gradient(180deg, var(--tint) 0%, #fff 100%);
}
.hero-grid { display: grid; gap: 36px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px 6px 10px; border-radius: 999px;
  background: #fff; border: 1px solid var(--blue-100); box-shadow: var(--shadow-sm);
  color: var(--blue); font-size: .8125rem; font-weight: 700;
}
.eyebrow .icon { width: 1rem; height: 1rem; }
.hero h1 { margin-top: 16px; font-size: clamp(2.125rem, 9.4vw, 3.75rem); font-weight: 800; letter-spacing: -.035em; }
.text-gradient {
  background: var(--gradient); -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
}
.lead { margin-top: 16px; font-size: 1.0625rem; color: var(--navy-70); max-width: 34rem; }
.cta-row { display: grid; gap: 12px; margin-top: 26px; }
.hero-points { list-style: none; display: grid; gap: 8px; margin-top: 24px; color: var(--navy-70); font-size: .9375rem; font-weight: 500; }
.hero-points li { display: flex; align-items: center; gap: 10px; }
.hero-points .icon { color: var(--green-700); width: 1.15rem; height: 1.15rem; stroke-width: 2.5; }

.hero-visual { position: relative; display: grid; place-items: center; padding: 26px 8px 34px; }
.hero-visual::before {
  content: ""; position: absolute; inset: 0; margin: auto; width: 90%; max-width: 420px; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(1, 81, 239, .18), transparent 60%), radial-gradient(circle at 70% 70%, rgba(12, 201, 127, .2), transparent 60%);
}
.logo-card {
  position: relative; z-index: 1; width: min(78%, 340px);
  padding: 30px 28px; border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .92); box-shadow: var(--shadow-lg);
  animation: float 7s ease-in-out infinite;
}
.chip {
  position: absolute; z-index: 2; display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 12px 7px 7px; border-radius: 999px; background: #fff;
  box-shadow: var(--shadow); font-size: .8125rem; font-weight: 700; white-space: nowrap;
  animation: float 6s ease-in-out infinite;
}
.chip-icon { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; }
.chip-icon .icon { width: 15px; height: 15px; }
.chip-icon.blue { background: var(--blue-50); color: var(--blue); }
.chip-icon.green { background: var(--green-50); color: var(--green-700); }
.chip-1 { left: 0; top: 6%; animation-delay: -1s; }
.chip-2 { right: 0; top: 42%; animation-delay: -3s; }
.chip-3 { left: 4%; bottom: 2%; animation-delay: -5s; }

@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* ---------- Sections ---------- */
.section { padding: 64px 0; }
.section-tint { background: var(--tint); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 32px; }
.kicker { color: var(--blue); font-weight: 700; font-size: .8125rem; letter-spacing: .08em; text-transform: uppercase; }
.section h2 { margin-top: 8px; font-size: clamp(1.625rem, 6.4vw, 2.5rem); font-weight: 800; }
.section-sub { margin-top: 12px; color: var(--navy-70); font-size: 1.03rem; }

.note {
  display: flex; gap: 10px; align-items: flex-start; margin-top: 22px; text-align: left;
  padding: 12px 14px; border-radius: var(--radius-sm); background: var(--blue-50);
  color: var(--navy-70); font-size: .875rem;
}
.note .icon { color: var(--blue); width: 18px; height: 18px; margin-top: 2px; }
.note-center { max-width: 640px; margin: 28px auto 0; }

/* Cards */
.feature-grid, .steps { display: grid; gap: 14px; list-style: none; }
.card {
  padding: 22px; border-radius: var(--radius); background: #fff;
  border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--blue-100); }
.card h3 { margin-top: 14px; font-size: 1.125rem; }
.card p { margin-top: 6px; color: var(--navy-70); font-size: .97rem; }
.card-icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 14px; }
.card-icon .icon { width: 24px; height: 24px; }
.card-icon.blue { background: var(--blue-50); color: var(--blue); }
.card-icon.green { background: var(--green-50); color: var(--green-700); }
.step-num { display: block; margin-top: 16px; color: var(--blue); font-size: .8125rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.steps .card h3 { margin-top: 4px; }

/* Commission */
.split { display: grid; gap: 32px; align-items: center; }
.rate-panel {
  position: relative; overflow: hidden; display: grid; justify-items: center; text-align: center; gap: 14px;
  padding: 36px 20px; border-radius: var(--radius-lg); color: #fff;
  background: radial-gradient(120% 90% at 100% 0%, rgba(12, 201, 127, .55), transparent 60%), linear-gradient(150deg, #0346d6 0%, var(--blue) 55%, #0a67f5 100%);
  box-shadow: var(--shadow-lg);
}
.rate-ring {
  display: grid; place-items: center; width: 168px; aspect-ratio: 1; border-radius: 50%;
  background: rgba(255, 255, 255, .12); border: 2px solid rgba(255, 255, 255, .35);
}
.rate-value { font-size: 3.75rem; font-weight: 800; line-height: 1; }
.rate-caption { font-size: 1.125rem; font-weight: 700; max-width: 18rem; }
.check-list { list-style: none; display: grid; gap: 14px; margin-top: 22px; }
.check-list li { display: flex; gap: 12px; color: var(--navy-70); }
.check-list strong { color: var(--navy); }
.check-list .icon {
  width: 24px; height: 24px; padding: 4px; margin-top: 1px; border-radius: 50%;
  background: var(--green-50); color: var(--green-700); stroke-width: 3;
}

/* How to use */
.flow { list-style: none; display: grid; gap: 14px; max-width: 980px; margin: 0 auto; }
.flow-step {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
.flow-num {
  display: grid; place-items: center; flex: none; width: 44px; height: 44px; border-radius: 14px;
  background: var(--gradient); color: #fff; font-weight: 800; font-size: 1.125rem;
}
.flow-step h3 { font-size: 1.0625rem; }
.flow-step p { margin-top: 4px; color: var(--navy-70); font-size: .97rem; }

/* Download */
.download-card {
  display: grid; grid-template-columns: minmax(0, 1fr); overflow: hidden;
  border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-lg);
}
.download-main { padding: 24px 18px; min-width: 0; }
.download-head { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.download-logo { width: 64px; flex: none; }
.download-head h2 { margin-top: 2px; font-size: clamp(1.375rem, 5.6vw, 2rem); }

.release-meta { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 0; }
.release-meta div { padding: 12px 10px; border-radius: var(--radius-sm); background: var(--tint); border: 1px solid var(--line); min-width: 0; }
.release-meta dt { font-size: .75rem; font-weight: 600; color: var(--navy-50); text-transform: uppercase; letter-spacing: .05em; }
.release-meta dd { margin: 2px 0 0; font-weight: 800; overflow-wrap: anywhere; }

.whats-new { margin-top: 18px; }
.whats-new h3 { font-size: 1rem; }
.whats-new ul { list-style: none; display: grid; gap: 6px; margin-top: 8px; }
.whats-new li { position: relative; padding-left: 20px; color: var(--navy-70); font-size: .94rem; overflow-wrap: anywhere; }
.whats-new li::before { content: ""; position: absolute; left: 4px; top: .62em; width: 7px; height: 7px; border-radius: 50%; background: var(--green); }
.download-main .btn-block { margin-top: 20px; }

.checksum { margin-top: 16px; border-top: 1px solid var(--line); padding-top: 8px; font-size: .875rem; color: var(--navy-70); }
.checksum summary {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 44px;
  cursor: pointer; list-style: none; font-weight: 600; color: var(--navy);
}
.checksum summary::-webkit-details-marker { display: none; }
.checksum summary .icon { color: var(--blue); transition: transform .25s var(--ease); }
.checksum[open] summary .icon { transform: rotate(180deg); }
.checksum code {
  display: block; margin-top: 10px; padding: 10px 12px; border-radius: 10px; background: var(--tint); border: 1px solid var(--line);
  font-family: ui-monospace, Menlo, Consolas, "Roboto Mono", monospace; font-size: .75rem; color: var(--navy); overflow-wrap: anywhere;
}

.empty-state { display: grid; justify-items: center; text-align: center; gap: 8px; padding: 20px 8px; }
.empty-state h3 { font-size: 1.125rem; }
.empty-state p { color: var(--navy-70); max-width: 26rem; }
.state-icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; background: var(--blue-50); color: var(--blue); }
.state-icon .icon { width: 26px; height: 26px; }

.install-guide { padding: 24px 18px; min-width: 0; background: var(--tint); border-top: 1px solid var(--line); }
.install-guide h3 { font-size: 1.0625rem; }
.install-guide ol { display: grid; gap: 10px; margin-top: 12px; list-style: none; counter-reset: install; }
.install-guide li { position: relative; padding-left: 36px; color: var(--navy-70); font-size: .94rem; counter-increment: install; }
.install-guide li::before {
  content: counter(install); position: absolute; left: 0; top: 0;
  display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%;
  background: #fff; border: 1px solid var(--blue-100); color: var(--blue); font-size: .75rem; font-weight: 800;
}
.install-guide strong { color: var(--navy); }
.install-guide .note { background: #fff; border: 1px solid var(--line); }

/* Footer */
.site-footer { padding: 48px 0 calc(32px + env(safe-area-inset-bottom)); background: var(--navy); color: #c9d3ea; }
.footer-grid { display: grid; gap: 24px; }
.footer-logo { width: 120px; padding: 12px; border-radius: 16px; background: #fff; }
.footer-brand p { margin-top: 12px; font-weight: 600; color: #fff; }
.footer-links { display: flex; flex-wrap: wrap; }
.footer-links a { display: inline-flex; align-items: center; min-height: 44px; margin-right: 20px; color: #c9d3ea; text-decoration: none; font-weight: 500; }
.footer-links a:hover { color: #fff; text-decoration: underline; }
.footer-bottom { margin-top: 24px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .12); display: grid; gap: 8px; font-size: .875rem; }
.disclaimer { color: #9eabc8; }

/* ---------- Larger phones / small tablets ---------- */
@media (min-width: 480px) {
  .container { padding: 0 24px; }
  .cta-row { display: flex; flex-wrap: wrap; }
  .download-main, .install-guide { padding: 30px 28px; }
}

@media (min-width: 640px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Tablet / desktop ---------- */
@media (min-width: 900px) {
  :root { --header-h: 72px; }
  .site-nav { display: flex; gap: 4px; }
  .site-nav a { padding: 8px 12px; border-radius: 10px; color: var(--navy-70); text-decoration: none; font-weight: 600; font-size: .9375rem; }
  .site-nav a:hover { color: var(--blue); background: var(--blue-50); }
  .hero { padding: 64px 0 96px; }
  .hero-grid { grid-template-columns: 1.1fr .9fr; gap: 48px; }
  .section { padding: 96px 0; }
  .section-head { margin-bottom: 48px; }
  .feature-grid { grid-template-columns: repeat(4, 1fr); gap: 18px; }
  .split { grid-template-columns: .85fr 1.15fr; gap: 64px; }
  .rate-panel { padding: 56px 32px; }
  .rate-ring { width: 210px; }
  .rate-value { font-size: 4.5rem; }
  .flow { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .flow-step { flex-direction: column; padding: 26px; }
  .download-card { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); }
  .download-main { padding: 40px; }
  .install-guide { padding: 40px 32px; border-top: 0; border-left: 1px solid var(--line); }
  .footer-grid { grid-template-columns: 1fr 2fr; align-items: start; }
  .footer-bottom { grid-template-columns: auto 1fr; gap: 24px; }
  .disclaimer { text-align: right; }
}

@media (hover: none) {
  .card:hover { transform: none; }
}

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

/* ---------- Registration page (/register/) ---------- */
.register-page .site-footer { padding-top: 8px; }
.register-section { padding-top: 40px; }
.register-grid { display: grid; gap: 28px; align-items: start; }
.register-intro h1 { margin-top: 8px; font-size: clamp(1.875rem, 7vw, 2.75rem); font-weight: 800; }
.register-steps { list-style: none; display: grid; gap: 12px; margin-top: 22px; }
.register-steps li { display: flex; align-items: center; gap: 12px; color: var(--navy-70); font-weight: 500; }
.register-steps .flow-num { width: 32px; height: 32px; font-size: .9375rem; flex: none; }

.register-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); padding: 24px 18px; min-width: 0;
}
.form-title { font-size: 1.25rem; font-weight: 800; margin-bottom: 18px; }
.register-form .field { margin-bottom: 18px; }
.register-form label { display: block; margin-bottom: 6px; font-weight: 700; font-size: .9375rem; }
.register-form .optional { color: var(--navy-50); font-weight: 500; }
.register-form input {
  width: 100%; min-height: 50px; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 14px;
  font: inherit; color: var(--navy); background: #fff; transition: border-color .2s, box-shadow .2s;
}
.register-form input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 4px var(--blue-50); }
.register-form input[aria-invalid="true"] { border-color: #d6455d; }
.register-form input[aria-invalid="true"]:focus { box-shadow: 0 0 0 4px #fdecef; }
.register-form input[readonly] { background: var(--tint); }
#referral_code { text-transform: uppercase; letter-spacing: .08em; }

.input-prefix { display: flex; align-items: stretch; }
.input-prefix span {
  display: grid; place-items: center; padding: 0 12px; border: 1.5px solid var(--line); border-right: 0;
  border-radius: 14px 0 0 14px; background: var(--tint); color: var(--navy-70); font-weight: 600;
}
.input-prefix input { border-radius: 0 14px 14px 0; }

.input-toggle { position: relative; }
.input-toggle input { padding-right: 52px; }
.toggle-visibility {
  position: absolute; top: 50%; right: 6px; transform: translateY(-50%);
  display: grid; place-items: center; width: 40px; height: 40px; border: 0; border-radius: 10px;
  background: transparent; color: var(--navy-50); cursor: pointer;
}
.toggle-visibility:hover { color: var(--blue); background: var(--blue-50); }

.field-hint { margin-top: 6px; color: var(--navy-50); font-size: .8125rem; }
.field-error { margin-top: 6px; color: #b4233b; font-size: .8125rem; font-weight: 600; }
.field-error:empty { display: none; }
.form-alert {
  margin-bottom: 18px; padding: 12px 14px; border-radius: var(--radius-sm);
  background: #fdecef; color: #8f1d31; font-size: .9rem; font-weight: 600;
}

.btn .spinner {
  display: none; width: 18px; height: 18px; border-radius: 50%;
  border: 2.5px solid rgba(255, 255, 255, .45); border-top-color: #fff; animation: spin .8s linear infinite;
}
.btn.is-loading .spinner { display: inline-block; }
.btn[disabled] { opacity: .8; cursor: progress; }
@keyframes spin { to { transform: rotate(360deg); } }

.form-footnote { display: flex; gap: 8px; align-items: flex-start; margin-top: 14px; color: var(--navy-50); font-size: .8125rem; }
.form-footnote .icon { width: 16px; height: 16px; margin-top: 2px; color: var(--green-700); }

.register-success { display: grid; justify-items: center; text-align: center; gap: 12px; padding: 12px 4px; }
.register-success[hidden] { display: none; }
.register-success:focus { outline: none; }
.register-success h2 { font-size: 1.5rem; font-weight: 800; }
.register-success p { color: var(--navy-70); max-width: 28rem; }
.register-success .btn { margin-top: 8px; }
.success-icon {
  display: grid; place-items: center; width: 64px; height: 64px; border-radius: 50%;
  background: var(--green-50); color: var(--green-700);
}
.success-icon .icon { width: 32px; height: 32px; stroke-width: 2.5; }

@media (min-width: 480px) {
  .register-card { padding: 32px 28px; }
}
@media (min-width: 900px) {
  .register-section { padding: 72px 0 96px; }
  .register-grid { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 56px; }
  .register-intro { position: sticky; top: calc(var(--header-h) + 24px); }
  .register-card { padding: 40px; }
}
.register-success .success-note { font-size: .875rem; color: var(--navy-50); }