/* ============================================
   Buy Me Coffee — Style System v2
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
  --bg-primary:    #0a0e1a;
  --bg-secondary:  #111827;
  --bg-card:       rgba(17, 24, 39, 0.65);
  --glass-border:  rgba(255, 255, 255, 0.08);
  --glass-shadow:  0 8px 32px rgba(0, 0, 0, 0.35);

  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted:     #64748b;

  --accent-blue:    #3b82f6;
  --accent-purple:  #8b5cf6;
  --accent-green:   #10b981;
  --accent-amber:   #f59e0b;
  --accent-red:     #ef4444;
  --accent-coffee:  #d97706;
  --accent-warm:    #f97316;

  --gradient-hero:    linear-gradient(135deg, #f97316 0%, #d97706 50%, #f59e0b 100%);
  --gradient-card:    linear-gradient(145deg, rgba(249,115,22,0.06) 0%, rgba(217,119,6,0.04) 100%);
  --gradient-btn:     linear-gradient(135deg, #f97316 0%, #ea580c 100%);
  --gradient-gpay:    linear-gradient(135deg, #1a73e8 0%, #4285f4 100%);

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
}

/* ---------- Reset ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ---------- Ambient BG ---------- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 20% 30%, rgba(249,115,22,0.10) 0%, transparent 70%),
    radial-gradient(ellipse 500px 350px at 80% 60%, rgba(217,119,6,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 400px 300px at 50% 90%, rgba(245,158,11,0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ---------- Layout ---------- */
.app-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: var(--space-lg);
}

/* ---------- Header ---------- */
.checkout-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
  padding-top: var(--space-xl);
}
.checkout-header__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}
.checkout-header__icon {
  width: 54px; height: 54px;
  background: var(--gradient-hero);
  border-radius: var(--radius-md);
  display: grid; place-items: center;
  font-size: 1.6rem;
  box-shadow: 0 4px 20px rgba(249, 115, 22, 0.35);
  position: relative;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-smooth);
}
.checkout-header__icon:hover {
  animation: cup-wobble 0.6s ease infinite;
}
.checkout-header__icon.jiggle {
  animation: cup-wobble 0.5s ease;
}
.checkout-header__icon .cup-emoji {
  position: relative;
  z-index: 2;
  display: inline-block;
  line-height: 1;
}

/* Steam animation */
.steam-wrap {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 5px;
  pointer-events: none;
  z-index: 1;
}
.steam {
  width: 4px;
  height: 14px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 4px;
  filter: blur(1px);
  animation: steam-rise 2s ease-in-out infinite;
}
.steam--1 { animation-delay: 0s; height: 12px; }
.steam--2 { animation-delay: 0.6s; height: 16px; }
.steam--3 { animation-delay: 1.2s; height: 11px; }

@keyframes steam-rise {
  0% { opacity: 0; transform: translateY(4px) scaleX(0.8); }
  50% { opacity: 0.75; transform: translateY(-6px) scaleX(1.1) skewX(4deg); }
  100% { opacity: 0; transform: translateY(-16px) scaleX(1.4) skewX(-4deg); }
}

@keyframes cup-wobble {
  0%, 100% { transform: rotate(0deg) scale(1); }
  25% { transform: rotate(-8deg) scale(1.05); }
  50% { transform: rotate(8deg) scale(1.05); }
  75% { transform: rotate(-4deg) scale(1.02); }
}
.checkout-header__brand {
  font-size: 1.6rem; font-weight: 800;
  background: var(--gradient-hero);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.checkout-header__title {
  font-size: 2.2rem; font-weight: 900; letter-spacing: -0.03em; margin-bottom: var(--space-xs);
}
.checkout-header__subtitle {
  color: var(--text-secondary); font-size: 1.05rem; max-width: 420px; margin: 0 auto;
}

/* ---------- Main Container ---------- */
.checkout-container { max-width: 520px; width: 100%; }

/* ---------- Glass Card ---------- */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--glass-shadow);
  transition: border-color var(--duration-normal) var(--ease-smooth);
  margin-bottom: var(--space-lg);
}
.glass-card:hover { border-color: rgba(255, 255, 255, 0.12); }

/* ---------- Section Label ---------- */
.card-label {
  font-size: 0.7rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--accent-coffee); margin-bottom: var(--space-lg);
}

/* ---------- Currency Toggle ---------- */
.currency-toggle {
  display: flex; gap: 0;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm); padding: 3px;
  margin-bottom: var(--space-lg);
  border: 1px solid var(--glass-border);
}
.currency-toggle__btn {
  flex: 1; padding: 10px 16px; border: none; background: transparent;
  color: var(--text-secondary); font-family: inherit; font-size: 0.85rem; font-weight: 600;
  border-radius: 6px; cursor: pointer;
  transition: all var(--duration-normal) var(--ease-smooth);
  display: flex; align-items: center; justify-content: center; gap: 6px;
}
.currency-toggle__btn:hover { color: var(--text-primary); }
.currency-toggle__btn.active {
  background: var(--gradient-hero); color: #fff;
  box-shadow: 0 2px 12px rgba(249, 115, 22, 0.3);
}

/* ---------- Amount Grid ---------- */
.amount-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm); margin-bottom: var(--space-lg);
}
.amount-chip {
  padding: 14px 8px;
  border: 2px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  color: var(--text-primary); font-family: inherit; font-size: 1.05rem; font-weight: 700;
  cursor: pointer; transition: all var(--duration-normal) var(--ease-smooth);
  text-align: center; position: relative; overflow: hidden;
}
.amount-chip::before {
  content: ''; position: absolute; inset: 0;
  background: var(--gradient-hero); opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-smooth);
}
.amount-chip span { position: relative; z-index: 1; }
.amount-chip:hover {
  border-color: var(--accent-warm); transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.15);
}
.amount-chip.active {
  border-color: var(--accent-warm);
  box-shadow: 0 4px 20px rgba(249, 115, 22, 0.25);
}
.amount-chip.active::before { opacity: 0.15; }

/* ---------- Custom Amount (symbol OUTSIDE box) ---------- */
.custom-amount { margin-bottom: var(--space-lg); }
.custom-amount label {
  display: block; font-size: 0.78rem; font-weight: 500;
  color: var(--text-secondary); margin-bottom: var(--space-xs);
}
.custom-amount__wrapper {
  display: flex; align-items: center; gap: 10px;
}
.custom-amount__symbol {
  font-size: 1.1rem; font-weight: 700; color: var(--accent-warm);
  white-space: nowrap; min-width: 30px;
  flex-shrink: 0;
}
.custom-amount__input {
  flex: 1; width: 100%;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary); font-family: inherit; font-size: 1.1rem; font-weight: 600;
  outline: none;
  transition: border-color var(--duration-fast) var(--ease-smooth),
              box-shadow var(--duration-fast) var(--ease-smooth);
}
.custom-amount__input::placeholder { color: var(--text-muted); font-weight: 400; }
.custom-amount__input:focus {
  border-color: var(--accent-warm);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
}

/* ---------- Total Display ---------- */
.total-display {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: var(--space-md) var(--space-lg);
  background: rgba(249, 115, 22, 0.06);
  border: 1px solid rgba(249, 115, 22, 0.12);
  border-radius: var(--radius-md); margin-bottom: var(--space-lg);
}
.total-display__label { font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); }
.total-display__amount { font-size: 1.5rem; font-weight: 800; color: var(--accent-warm); }

/* ---------- Input Grid & Groups ---------- */
.input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-xs);
}
@media (max-width: 480px) {
  .input-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }
}
.input-group { margin-bottom: var(--space-md); }
.input-group label {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.78rem; font-weight: 500;
  color: var(--text-secondary); margin-bottom: var(--space-xs);
}
.label-optional {
  font-size: 0.7rem; color: var(--text-muted); font-weight: 400;
}
.label-required {
  color: var(--accent-warm); font-weight: 700; margin-left: 2px;
}
.input-hint {
  display: block; font-size: 0.68rem; color: var(--text-muted); margin-top: 4px;
}
.input-group input {
  width: 100%; padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05); border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  font-family: inherit; font-size: 0.9rem; outline: none;
  transition: border-color var(--duration-fast) var(--ease-smooth),
              box-shadow var(--duration-fast) var(--ease-smooth);
}
.input-group input::placeholder { color: var(--text-muted); }
.input-group input:focus {
  border-color: var(--accent-warm);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
}

/* ---------- Message ---------- */
.message-group { margin-bottom: var(--space-md); }
.message-group label {
  display: block; font-size: 0.78rem; font-weight: 500;
  color: var(--text-secondary); margin-bottom: var(--space-xs);
}
.message-group textarea {
  width: 100%; padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05); border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  font-family: inherit; font-size: 0.85rem; outline: none;
  resize: vertical; min-height: 60px; max-height: 120px;
  transition: border-color var(--duration-fast) var(--ease-smooth),
              box-shadow var(--duration-fast) var(--ease-smooth);
}
.message-group textarea::placeholder { color: var(--text-muted); }
.message-group textarea:focus {
  border-color: var(--accent-warm);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-sm);
  width: 100%; padding: 14px 24px;
  font-family: inherit; font-size: 0.9rem; font-weight: 600;
  border: none; border-radius: var(--radius-sm); cursor: pointer;
  transition: all var(--duration-normal) var(--ease-smooth);
  position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(255, 255, 255, 0); transition: background var(--duration-fast) var(--ease-smooth);
}
.btn:hover::after { background: rgba(255, 255, 255, 0.08); }
.btn:active { transform: scale(0.98); }

.btn--paystack {
  background: var(--gradient-btn); color: #fff;
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
  font-size: 1rem; padding: 16px 24px;
}
.btn--paystack:hover {
  box-shadow: 0 6px 24px rgba(249, 115, 22, 0.45); transform: translateY(-1px);
}
.btn--paystack:active { transform: translateY(0) scale(0.98); }

/* Google Pay Container (Brand Guidelines: Proportional Size & Clear Space) */
#gpay-button-container {
  width: 100%;
  min-height: 48px;
  margin: 18px 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

#gpay-button-container > * {
  width: 100% !important;
  min-height: 48px !important;
  height: 48px !important;
}

/* Separator */
.separator {
  display: flex; align-items: center; gap: var(--space-md);
  margin: var(--space-md) 0; color: var(--text-muted);
  font-size: 0.75rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.1em;
}
.separator::before, .separator::after {
  content: ''; flex: 1; height: 1px; background: var(--glass-border);
}

/* ---------- Toast ---------- */
.status-toast {
  position: fixed; bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(120px);
  padding: 14px 28px; border-radius: var(--radius-md);
  font-size: 0.85rem; font-weight: 500;
  backdrop-filter: blur(16px); border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  z-index: 1000; opacity: 0;
  transition: all var(--duration-slow) var(--ease-smooth);
  white-space: nowrap; max-width: 90vw;
}
.status-toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.status-toast--success { background: rgba(16, 185, 129, 0.15); border-color: rgba(16, 185, 129, 0.3); color: var(--accent-green); }
.status-toast--error { background: rgba(239, 68, 68, 0.15); border-color: rgba(239, 68, 68, 0.3); color: var(--accent-red); }
.status-toast--info { background: rgba(59, 130, 246, 0.15); border-color: rgba(59, 130, 246, 0.3); color: var(--accent-blue); }
.status-toast--warning { background: rgba(245, 158, 11, 0.15); border-color: rgba(245, 158, 11, 0.3); color: var(--accent-amber); }

/* ---------- Security Badge ---------- */
.security-badge {
  display: flex; align-items: center; justify-content: center; gap: var(--space-sm);
  margin-top: var(--space-lg); padding: var(--space-sm) var(--space-md);
  background: rgba(16, 185, 129, 0.06); border: 1px solid rgba(16, 185, 129, 0.12);
  border-radius: var(--radius-full); font-size: 0.72rem; color: var(--accent-green); font-weight: 500;
}

/* ---------- Live Badge ---------- */
.env-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 14px; border-radius: var(--radius-full);
  font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  margin-top: var(--space-sm);
}
.env-badge--live { background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.25); color: var(--accent-green); }
.env-badge__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-green); animation: blink 1.5s ease-in-out infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }

/* ---------- Skeleton ---------- */
.gpay-skeleton {
  width: 100%; height: 48px;
  background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.04) 75%);
  background-size: 200% 100%; border-radius: var(--radius-sm);
  animation: skeleton-shimmer 1.5s ease infinite;
}
@keyframes skeleton-shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }

/* ---------- Pulse ---------- */
@keyframes pulse-glow {
  0%,100% { box-shadow: 0 0 0 0 rgba(249,115,22,0.4); }
  50%     { box-shadow: 0 0 0 10px rgba(249,115,22,0); }
}
.btn--loading { pointer-events: none; animation: pulse-glow 1.5s infinite; }


/* ═══════════════════════════════════════════════
   CELEBRATION OVERLAY (CLINKING CUPS)
   ═══════════════════════════════════════════════ */
.celebration-overlay {
  position: fixed; inset: 0;
  background: rgba(10, 14, 26, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-lg);
  opacity: 0; pointer-events: none;
  transition: opacity 0.35s ease;
}
.celebration-overlay.show {
  opacity: 1; pointer-events: all;
}
.celebration-card {
  background: linear-gradient(145deg, rgba(249,115,22,0.12) 0%, rgba(17,24,39,0.95) 100%);
  border: 1px solid rgba(249,115,22,0.35);
  border-radius: var(--radius-xl);
  padding: 38px 28px;
  max-width: 440px; width: 100%;
  box-shadow: 0 28px 70px rgba(0,0,0,0.65), 0 0 40px rgba(249,115,22,0.25);
  text-align: center;
  transform: scale(0.85) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
.celebration-overlay.show .celebration-card {
  transform: scale(1) translateY(0);
}

.clinking-cups-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 90px;
  margin-bottom: 12px;
}
.clinking-cup {
  font-size: 3.6rem;
  line-height: 1;
  display: inline-block;
  filter: drop-shadow(0 6px 16px rgba(249,115,22,0.5));
}
.clinking-cup--left {
  animation: clink-left 1.1s cubic-bezier(0.25, 1, 0.5, 1) infinite alternate;
  transform-origin: bottom center;
}
.clinking-cup--right {
  animation: clink-right 1.1s cubic-bezier(0.25, 1, 0.5, 1) infinite alternate;
  transform-origin: bottom center;
}
.clink-spark {
  position: absolute;
  top: 10px;
  font-size: 2.2rem;
  animation: spark-burst 1.1s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes clink-left {
  0%   { transform: translateX(-36px) rotate(-22deg); }
  50%, 100% { transform: translateX(-5px) rotate(14deg); }
}
@keyframes clink-right {
  0%   { transform: translateX(36px) rotate(22deg) scaleX(-1); }
  50%, 100% { transform: translateX(5px) rotate(-14deg) scaleX(-1); }
}
@keyframes spark-burst {
  0%, 35%  { opacity: 0; transform: scale(0.2) rotate(0deg); }
  55%, 100% { opacity: 1; transform: scale(1.35) rotate(180deg); }
}

.celebration-title {
  font-size: 1.8rem; font-weight: 900;
  letter-spacing: -0.02em;
  background: var(--gradient-hero);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: 6px;
}
.celebration-subtitle {
  color: var(--text-primary);
  font-size: 1rem; font-weight: 500;
  margin-bottom: 16px;
}
.celebration-badge {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(16,185,129,0.14);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: var(--radius-full);
  color: var(--accent-green);
  font-size: 0.95rem; font-weight: 700;
  margin-bottom: 24px;
}
.btn--celebration-view {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; padding: 14px 24px;
  background: var(--gradient-btn);
  color: #fff; font-family: inherit; font-size: 0.95rem; font-weight: 700;
  border: none; border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(249,115,22,0.4);
  transition: all 0.2s ease;
}
.btn--celebration-view:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(249,115,22,0.55);
}

/* ═══════════════════════════════════════════════
   RECEIPT MODAL
   ═══════════════════════════════════════════════ */
.receipt-overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-lg);
  opacity: 0; pointer-events: none;
  transition: opacity var(--duration-slow) var(--ease-smooth);
}
.receipt-overlay.show { opacity: 1; pointer-events: all; }

.receipt-card {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  max-width: 420px; width: 100%;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
  text-align: center;
  transform: scale(0.9) translateY(20px);
  transition: transform var(--duration-slow) var(--ease-smooth);
}
.receipt-overlay.show .receipt-card {
  transform: scale(1) translateY(0);
}

.receipt-card__icon {
  width: 64px; height: 64px; margin: 0 auto var(--space-md);
  background: rgba(16, 185, 129, 0.12);
  border-radius: 50%; display: grid; place-items: center;
  font-size: 2rem;
  box-shadow: 0 0 30px rgba(16, 185, 129, 0.2);
}

.receipt-card__title {
  font-size: 1.4rem; font-weight: 800; margin-bottom: var(--space-xs);
  color: var(--accent-green);
}

.receipt-card__subtitle {
  font-size: 0.85rem; color: var(--text-secondary); margin-bottom: var(--space-lg);
}

.receipt-card__details {
  text-align: left;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
}

.receipt-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 0;
  font-size: 0.82rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.receipt-row:last-child { border-bottom: none; }
.receipt-row__label { color: var(--text-secondary); }
.receipt-row__value { font-weight: 600; color: var(--text-primary); }
.receipt-row--total .receipt-row__value {
  font-size: 1.1rem; font-weight: 800; color: var(--accent-warm);
}

.receipt-actions {
  display: flex; gap: var(--space-sm);
}

.btn--receipt-download {
  flex: 1; padding: 12px 16px;
  background: var(--gradient-btn); color: #fff;
  font-family: inherit; font-size: 0.82rem; font-weight: 600;
  border: none; border-radius: var(--radius-sm); cursor: pointer;
  transition: all var(--duration-normal) var(--ease-smooth);
}
.btn--receipt-download:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(249,115,22,0.3); }

.btn--receipt-close {
  flex: 1; padding: 12px 16px;
  background: rgba(255,255,255,0.06); color: var(--text-secondary);
  font-family: inherit; font-size: 0.82rem; font-weight: 600;
  border: 1px solid var(--glass-border); border-radius: var(--radius-sm); cursor: pointer;
  transition: all var(--duration-normal) var(--ease-smooth);
}
.btn--receipt-close:hover { background: rgba(255,255,255,0.1); color: var(--text-primary); }


/* ═══════════════════════════════════════════════
   SUPPORTER REVIEWS TICKER
   ═══════════════════════════════════════════════ */
.supporters-section {
  max-width: 520px; width: 100%;
  margin-bottom: var(--space-lg);
  overflow: hidden;
}

.supporters-section .card-label {
  text-align: center;
  margin-bottom: var(--space-md);
}

.supporters-track-wrapper {
  position: relative;
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
}

.supporters-track {
  display: flex;
  gap: var(--space-md);
  animation: scroll-left 30s linear infinite;
  width: max-content;
}

.supporters-track:hover { animation-play-state: paused; }

@keyframes scroll-left {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.supporter-card {
  flex-shrink: 0;
  width: 240px;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  backdrop-filter: blur(10px);
  transition: border-color var(--duration-normal) var(--ease-smooth);
}

.supporter-card:hover {
  border-color: rgba(249, 115, 22, 0.3);
}

/* Real new supporter — glowing orange highlight */
.supporter-card--new {
  border-color: rgba(249, 115, 22, 0.55);
  box-shadow: 0 0 16px rgba(249, 115, 22, 0.2), inset 0 0 20px rgba(249, 115, 22, 0.04);
  animation: new-card-pulse 2s ease-in-out 3;
}

@keyframes new-card-pulse {
  0%, 100% { box-shadow: 0 0 16px rgba(249,115,22,0.2), inset 0 0 20px rgba(249,115,22,0.04); }
  50%       { box-shadow: 0 0 28px rgba(249,115,22,0.45), inset 0 0 20px rgba(249,115,22,0.08); }
}

.supporter-card__header {
  display: flex; align-items: center; gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.supporter-card__avatar {
  width: 32px; height: 32px;
  background: var(--gradient-hero);
  border-radius: 50%; display: grid; place-items: center;
  font-size: 0.85rem; font-weight: 700; color: #fff;
  flex-shrink: 0;
}

.supporter-card__name {
  font-size: 0.8rem; font-weight: 600; color: var(--text-primary);
}

.supporter-card__amount {
  font-size: 0.7rem; color: var(--accent-warm); font-weight: 500;
}

.supporter-card__message {
  font-size: 0.78rem; color: var(--text-secondary);
  line-height: 1.5;
  font-style: italic;
}

.supporter-card__time {
  font-size: 0.65rem; color: var(--text-muted);
  margin-top: var(--space-sm);
}

/* No supporters placeholder */
.supporters-empty {
  text-align: center;
  padding: var(--space-lg);
  color: var(--text-muted);
  font-size: 0.82rem;
}


/* ---------- Footer ---------- */
.checkout-footer {
  text-align: center; margin-top: var(--space-xl);
  padding-bottom: var(--space-xl); color: var(--text-muted); font-size: 0.75rem;
}
.checkout-footer a {
  color: var(--accent-warm); text-decoration: none;
  transition: color var(--duration-fast) var(--ease-smooth);
}
.checkout-footer a:hover { color: var(--accent-amber); }

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
  .checkout-header__title { font-size: 1.6rem; }
  .glass-card { padding: var(--space-lg); }
  .total-display__amount { font-size: 1.3rem; }
  .supporter-card { width: 200px; }
  .receipt-card { padding: var(--space-xl); }
}