/* ═══════════════════════════════════════════
   GingerPay — style.css
   Mobile-first · IBM Plex Sans · AMOLED dark
   Priority: 375px phones, then tablet/desktop
═══════════════════════════════════════════ */

/* ── Tokens ──────────────────────────────── */
:root {
  --black:        #000000;
  --surface:      #0C0C0C;
  --surface-2:    #141414;
  --surface-3:    #1C1C1C;
  --border:       #262626;
  --border-light: #333333;

  --gold:         #F59E0B;
  --gold-bright:  #FCD34D;
  --gold-dim:     rgba(245,158,11,0.18);
  --gold-glow:    0 0 20px rgba(245,158,11,0.45), 0 0 50px rgba(245,158,11,0.15);
  --blue:         #3B82F6;
  --blue-dim:     rgba(59,130,246,0.18);
  --green:        #22C55E;
  --green-dim:    rgba(34,197,94,0.14);
  --red:          #EF4444;
  --red-dim:      rgba(239,68,68,0.14);

  --text:         #F5F5F5;
  --text-2:       #A3A3A3;
  --text-3:       #525252;

  --font:         'IBM Plex Sans', system-ui, sans-serif;
  --mono:         'IBM Plex Mono', monospace;

  --radius-sm:    10px;
  --radius:       16px;
  --radius-lg:    22px;
  --radius-xl:    28px;

  --ease:         cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light mode */
html.light {
  --black:        #F8FAFC;
  --surface:      #FFFFFF;
  --surface-2:    #F1F5F9;
  --surface-3:    #E8EDF4;
  --border:       #E2E8F0;
  --border-light: #CBD5E1;
  --text:         #0F172A;
  --text-2:       #475569;
  --text-3:       #94A3B8;
  --gold-dim:     rgba(245,158,11,0.10);
  --blue-dim:     rgba(59,130,246,0.08);
}

/* ── Reset ───────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  /* Prevent iOS font size adjustment */
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--black);
  color: var(--text);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  /* Safe area for notched phones */
  padding-bottom: env(safe-area-inset-bottom);
  transition: background 280ms var(--ease), color 280ms var(--ease);
}

/* ── Keyframes ───────────────────────────── */
@keyframes orb-pulse {
  0%   { transform: scale(1);    opacity: .2; }
  100% { transform: scale(1.15); opacity: .4; }
}
@keyframes ping-wave {
  0%   { transform: translate(-50%,-50%) scale(1);   opacity: .8; }
  70%  { transform: translate(-50%,-50%) scale(1.5); opacity: 0; }
  100% { transform: translate(-50%,-50%) scale(1.5); opacity: 0; }
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes slide-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes glow-pulse {
  0%   { text-shadow: 0 0 6px rgba(245,158,11,.35); }
  100% { text-shadow: 0 0 16px rgba(245,158,11,.85), 0 0 32px rgba(245,158,11,.3); }
}
@keyframes draw-check {
  to { stroke-dashoffset: 0; }
}
@keyframes shake {
  0%,100% { transform: translateX(0); }
  25%,75% { transform: translateX(-5px); }
  50%     { transform: translateX(5px); }
}
@keyframes confetti-up {
  0%   { transform: translateY(0) rotate(0deg);   opacity: 1; }
  100% { transform: translateY(-130px) rotate(400deg); opacity: 0; }
}
@keyframes progress-fill {
  from { width: 0%; }
  to   { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* ── Ambient background ──────────────────── */
.bg-ambient {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 0;
  overflow: hidden;
}
.orb {
  position: absolute; border-radius: 50%;
  filter: blur(90px); will-change: transform;
}
.orb-gold {
  width: 420px; height: 420px;
  top: -80px; left: -60px;
  background: radial-gradient(circle, rgba(245,158,11,.16) 0%, transparent 70%);
  animation: orb-pulse 6s ease-in-out infinite alternate;
}
.orb-blue {
  width: 360px; height: 360px;
  bottom: -60px; right: -40px;
  background: radial-gradient(circle, rgba(59,130,246,.12) 0%, transparent 70%);
  animation: orb-pulse 7s ease-in-out infinite alternate-reverse;
}
html.light .orb-gold { background: radial-gradient(circle, rgba(245,158,11,.08) 0%, transparent 70%); }
html.light .orb-blue  { background: radial-gradient(circle, rgba(59,130,246,.06) 0%, transparent 70%); }

/* ── Navbar ──────────────────────────────── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px;
  padding-top: max(12px, env(safe-area-inset-top));
  background: rgba(0,0,0,.72);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  transition: background 280ms var(--ease), border-color 280ms var(--ease);
}
html.light .navbar {
  background: rgba(255,255,255,.82);
  border-bottom-color: var(--border);
}

.nav-brand {
  display: flex; align-items: center; gap: 9px;
  text-decoration: none; color: var(--text);
}
.brand-icon {
  width: 32px; height: 32px;
  background: rgba(245,158,11,.1);
  border: 1px solid rgba(245,158,11,.25);
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  filter: drop-shadow(0 0 6px rgba(245,158,11,.4));
  flex-shrink: 0;
}
.brand-icon svg { width: 20px; height: 20px; }
.brand-name {
  font-size: 1.05rem; font-weight: 700; letter-spacing: -.02em;
}
.brand-name span { color: var(--gold); }

.theme-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 13px; border-radius: 50px;
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--text-2); font-family: var(--font); font-size: .78rem; font-weight: 500;
  cursor: pointer; transition: all 180ms var(--ease);
  /* min touch target */
  min-height: 36px;
}
.theme-btn svg { width: 14px; height: 14px; }
.theme-btn:hover { border-color: var(--gold); color: var(--gold); }
.theme-btn:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

/* ── Main layout ─────────────────────────── */
.main {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: center;
  min-height: 100dvh;
  padding: 0 16px 32px;
  /* Offset for fixed navbar (~56px) */
  padding-top: calc(56px + env(safe-area-inset-top));
}

/* ── Hero ────────────────────────────────── */
.hero {
  width: 100%; max-width: 420px;
  display: flex; flex-direction: column; align-items: center;
  text-align: center;
  padding: 32px 0 24px;
  gap: 0;
}

.hero-ping {
  position: relative;
  width: 80px; height: 80px;
  margin-bottom: 20px;
  animation: float 4s ease-in-out infinite;
  flex-shrink: 0;
}
.ping-ring {
  position: absolute; top: 50%; left: 50%;
  border-radius: 50%;
  border: 1.5px solid var(--gold);
}
.r1 { width: 48px; height: 48px; animation: ping-wave 2.4s ease-out infinite; animation-delay: 0s; }
.r2 { width: 66px; height: 66px; animation: ping-wave 2.4s ease-out infinite; animation-delay: .6s; border-color: rgba(245,158,11,.5); }
.r3 { width: 82px; height: 82px; animation: ping-wave 2.4s ease-out infinite; animation-delay: 1.2s; border-color: rgba(245,158,11,.25); }
.ping-phone {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 40px; height: 40px; z-index: 1;
}

.hero-text { margin-bottom: 12px; }
.hero-title {
  font-size: clamp(2.2rem, 9vw, 3.2rem);
  font-weight: 700; letter-spacing: -.035em; line-height: 1;
  color: var(--text);
  text-shadow: 0 0 30px rgba(245,158,11,.25);
  margin-bottom: 6px;
}
.hero-title span { color: var(--gold); }
.hero-tagline {
  font-size: .875rem; font-weight: 400;
  letter-spacing: .01em;
  color: var(--text-2);
}
.hero-desc {
  font-size: .85rem; line-height: 1.6; color: var(--text-3);
  max-width: 300px;
}

/* ── Payment card ────────────────────────── */
.card-wrap {
  width: 100%; max-width: 420px;
  display: flex; flex-direction: column; gap: 12px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  animation: slide-up .4s var(--ease) both;
}
html.light .card {
  box-shadow: 0 4px 24px rgba(0,0,0,.06), 0 1px 4px rgba(0,0,0,.04);
}

/* Animated top stripe */
.card-stripe {
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--blue), var(--gold));
  background-size: 200% 100%;
  animation: progress-fill 0s; /* overridden below */
}
/* Continuously animate the stripe */
@keyframes stripe-scroll {
  0%   { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}
.card-stripe {
  animation: stripe-scroll 3s linear infinite;
}

.card-inner { padding: 22px 20px 24px; }

/* Card header */
.card-head { margin-bottom: 16px; }
.card-title {
  font-size: 1.05rem; font-weight: 600;
  color: var(--gold); margin-bottom: 12px;
  letter-spacing: -.01em;
}

.badge-row { display: flex; flex-wrap: wrap; gap: 6px; }
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 9px; border-radius: 50px;
  background: var(--surface-3); border: 1px solid var(--border);
  font-size: .7rem; font-weight: 500; color: var(--text-2);
  white-space: nowrap;
}
.badge svg { width: 11px; height: 11px; color: var(--green); }
.badge-blue svg { color: var(--blue); }
.badge-gold svg { color: var(--gold); }

.card-divider {
  height: 1px; background: var(--border);
  margin: 0 0 20px;
}

/* ── Form fields ─────────────────────────── */
.field { margin-bottom: 16px; }
.field:last-of-type { margin-bottom: 20px; }

.field-label {
  display: block;
  font-size: .78rem; font-weight: 600;
  color: var(--text-2); letter-spacing: .03em; text-transform: uppercase;
  margin-bottom: 7px;
}

.field-input-wrap {
  position: relative;
  display: flex; align-items: stretch;
}

.field-prefix {
  display: flex; align-items: center; justify-content: center;
  padding: 0 13px;
  background: var(--surface-3);
  border: 1px solid var(--border); border-right: none;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  font-size: .85rem; font-weight: 600; color: var(--text-3);
  white-space: nowrap; flex-shrink: 0;
  min-height: 52px;
}
.phone-prefix { padding: 0 12px; }
.phone-prefix svg { width: 16px; height: 16px; }

.field-input {
  flex: 1;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-left: none;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 0 44px 0 14px;
  height: 52px;
  font-family: var(--font); font-size: 1.05rem; font-weight: 500;
  color: var(--text);
  outline: none;
  transition: border-color 180ms var(--ease), box-shadow 180ms var(--ease);
  /* Remove browser number arrows */
  -moz-appearance: textfield;
  appearance: textfield;
}
.field-input::-webkit-outer-spin-button,
.field-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.field-input::placeholder { color: var(--text-3); font-weight: 400; font-size: .95rem; }

.field-input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(245,158,11,.12);
  background: var(--surface);
}
.field-input:focus + .field-icon,
.field-input:focus ~ .field-prefix {
  border-color: var(--gold);
}
/* When focused, also update prefix border */
.field-input-wrap:focus-within .field-prefix {
  border-color: var(--gold);
}

.field-input.valid  { border-color: var(--green); box-shadow: 0 0 0 3px rgba(34,197,94,.1); }
.field-input.error  { border-color: var(--red);   box-shadow: 0 0 0 3px rgba(239,68,68,.1); animation: shake .35s var(--ease); }
.field-input-wrap:has(.field-input.valid)  .field-prefix { border-color: var(--green); }
.field-input-wrap:has(.field-input.error)  .field-prefix { border-color: var(--red); }

.field-icon {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  width: 18px; height: 18px; pointer-events: none;
  display: flex; align-items: center; justify-content: center;
}
.field-icon svg { width: 18px; height: 18px; }

.field-hint {
  display: block; margin-top: 5px;
  font-size: .72rem; color: var(--text-3);
}
.field-error {
  display: block; margin-top: 5px;
  font-size: .72rem; color: var(--red); font-weight: 500;
}
.field-error.hidden, .hidden { display: none !important; }

/* ── Pay button ──────────────────────────── */
.pay-btn {
  width: 100%; height: 56px;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  border: none; border-radius: var(--radius);
  background: linear-gradient(135deg, #F59E0B 0%, #FCD34D 60%, #F59E0B 100%);
  background-size: 200% 100%;
  color: #000;
  font-family: var(--font); font-size: 1rem; font-weight: 700;
  cursor: pointer;
  transition: all 200ms var(--ease);
  position: relative; overflow: hidden;
  /* Minimum touch target */
  min-height: 52px;
}
.pay-btn::before {
  content: '';
  position: absolute; inset: 0;
  background: rgba(255,255,255,0);
  transition: background 200ms;
}
.pay-btn:hover:not(:disabled)::before { background: rgba(255,255,255,.08); }
.pay-btn:hover:not(:disabled) {
  box-shadow: var(--gold-glow);
  background-position: right;
  transform: translateY(-1px);
}
.pay-btn:active:not(:disabled) { transform: translateY(0); box-shadow: none; }
.pay-btn:focus-visible { outline: 3px solid rgba(245,158,11,.5); outline-offset: 2px; }
.pay-btn:disabled { opacity: .6; cursor: not-allowed; transform: none; box-shadow: none; }

.pay-btn.state-loading  { background: linear-gradient(135deg, #334155, #475569); color: #E2E8F0; }
.pay-btn.state-success  { background: linear-gradient(135deg, #15803D, #22C55E); color: #fff; }
.pay-btn.state-error    { background: transparent; border: 1.5px solid var(--red); color: var(--red); }

.pay-btn-icon { display: flex; align-items: center; }
.pay-btn-icon svg { width: 20px; height: 20px; }

.spinner {
  width: 20px; height: 20px; border-radius: 50%;
  border: 2.5px solid rgba(255,255,255,.25);
  border-top-color: #fff;
  animation: spin .65s linear infinite;
  flex-shrink: 0;
}

.pay-btn-text { font-size: 1rem; font-weight: 700; }

/* ── Status card ─────────────────────────── */
.status-wrap {
  animation: slide-up .35s var(--ease) both;
}

.status-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
}
html.light .status-card { box-shadow: 0 4px 16px rgba(0,0,0,.05); }

.status-icon {
  width: 56px; height: 56px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px;
}
.status-icon.s-pending  { background: rgba(245,158,11,.12); }
.status-icon.s-success  { background: rgba(34,197,94,.12); }
.status-icon.s-error    { background: rgba(239,68,68,.12); }
.status-icon.s-timeout  { background: rgba(163,163,163,.1); }
.status-icon svg { width: 26px; height: 26px; }

.status-title {
  font-size: 1.05rem; font-weight: 700;
  margin-bottom: 6px; letter-spacing: -.01em;
}
.status-sub {
  font-size: .85rem; color: var(--text-2);
  line-height: 1.6; margin-bottom: 0;
}

/* Progress bar */
.status-progress {
  width: 100%; height: 3px;
  background: var(--surface-3); border-radius: 2px;
  margin: 16px 0 8px; overflow: hidden;
}
.progress-bar {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--gold), var(--blue));
  border-radius: 2px;
  transition: width 200ms linear;
}

.countdown-text {
  font-size: .75rem; color: var(--text-3); margin-top: 4px;
}

/* Receipt / txn info */
.txn-pill {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 10px; padding: 6px 14px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 50px;
  font-family: var(--mono); font-size: .75rem; color: var(--text-2);
}

/* Check animation */
.check-circle { fill: none; }
.check-path {
  stroke: var(--green); stroke-width: 2.5;
  stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 32; stroke-dashoffset: 32;
  fill: none;
  animation: draw-check .5s var(--ease) .15s forwards;
}

/* Retry / secondary button */
.btn-retry {
  display: inline-flex; align-items: center; justify-content: center;
  margin-top: 14px; padding: 10px 24px;
  border-radius: 50px;
  border: 1px solid var(--border-light);
  background: transparent; color: var(--text-2);
  font-family: var(--font); font-size: .85rem; font-weight: 500;
  cursor: pointer; transition: all 180ms var(--ease);
  min-height: 44px;
}
.btn-retry:hover { border-color: var(--gold); color: var(--gold); }
.btn-retry:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

/* Confetti */
.confetti-stage {
  position: relative; height: 0; overflow: visible; pointer-events: none;
}
.confetti-piece {
  position: absolute; border-radius: 2px;
  animation: confetti-up 1s ease forwards; opacity: 0;
}

/* ── Trust row ───────────────────────────── */
.trust-row {
  display: flex; align-items: center; justify-content: center;
  gap: 10px; flex-wrap: wrap;
  padding: 20px 0 4px;
  width: 100%; max-width: 420px;
}
.trust-item {
  display: flex; align-items: center; gap: 5px;
  font-size: .72rem; color: var(--text-3); font-weight: 500;
}
.trust-item svg { width: 13px; height: 13px; }
.trust-dot {
  width: 3px; height: 3px; border-radius: 50%;
  background: var(--border-light);
}

/* ── Footer credit ───────────────────────── */
.footer-credit {
  margin-top: 10px; margin-bottom: 4px;
  font-size: .78rem; color: var(--text-3); text-align: center;
}
.glow-name {
  color: var(--gold); font-weight: 600;
  animation: glow-pulse 2s ease-in-out infinite alternate;
}

/* ═══════════════════════════════════════════
   RESPONSIVE — tablet & desktop
═══════════════════════════════════════════ */
@media (min-width: 480px) {
  .card-inner { padding: 26px 24px 28px; }
  .hero { padding: 40px 0 28px; }
  .hero-title { font-size: 3rem; }
}

@media (min-width: 768px) {
  .main { padding-top: calc(64px + env(safe-area-inset-top)); }
  .navbar { padding: 14px 28px; }
  .hero { padding: 48px 0 32px; }
  .hero-title { font-size: 3.6rem; }
  .card-wrap { max-width: 460px; }
  .card-inner { padding: 30px 28px 32px; }
}