:root {
  --bg: #121212;
  --green: #1DB954;
  --cta: #FFB8C6;
  --text: #FFFFFF;
  --text-muted: #A7A7A7;
  --copyright: #777777;
  --font: Arial, Helvetica, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
}

body {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  position: relative;
  padding-bottom: 24px;
}

/* 2.1 FOMO bar */
.fomo-bar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(90deg, #1a1a1a, #161616);
  border-bottom: 1px solid rgba(29, 185, 84, 0.35);
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-muted);
}
.fomo-bar strong {
  color: var(--green);
  font-size: 15px;
}
.fomo-text { color: var(--text-muted); }
.fomo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0 rgba(29, 185, 84, 0.7);
  animation: pulse 1.6s infinite;
  flex: 0 0 auto;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(29, 185, 84, 0.6); }
  70%  { box-shadow: 0 0 0 8px rgba(29, 185, 84, 0); }
  100% { box-shadow: 0 0 0 0 rgba(29, 185, 84, 0); }
}
.fomo-bar.flash {
  animation: flash 0.6s ease;
}
@keyframes flash {
  0% { background: rgba(29, 185, 84, 0.25); }
  100% { background: linear-gradient(90deg, #1a1a1a, #161616); }
}

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 6px;
}
.logo { height: 28px; width: auto; }
.brand { display: flex; align-items: center; gap: 8px; }
.sb-back {
  font-size: 26px;
  line-height: 1;
  color: var(--text);
  margin-right: 2px;
}
.promo-tag {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: #121212;
  background: var(--green);
  border-radius: 999px;
  padding: 3px 8px;
}
.topbar-cta {
  font-size: 12px;
  color: var(--green);
  text-decoration: none;
  border: 1px solid var(--green);
  border-radius: 999px;
  padding: 6px 14px;
  font-weight: bold;
}

.wrap { padding: 0 16px; }

/* Hero */
.hero { text-align: center; padding: 18px 0 8px; }
.hero-title {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 10px;
}
.hero-sub {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 20px;
}

/* CTA button */
.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  background: var(--cta);
  color: #121212;
  font-weight: 800;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 15px;
  transition: transform 0.12s ease, filter 0.12s ease;
}
.cta-btn:active { transform: scale(0.96); filter: brightness(0.95); }
.cta-btn--big { font-size: 17px; padding: 16px 40px; }
.cta-caption {
  margin-top: 10px;
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}

/* 2.2 Security badges */
.security {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 18px;
}
.security-badge {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: #181818;
  border: 1px solid rgba(29, 185, 84, 0.25);
  border-radius: 12px;
  padding: 10px 6px;
  text-align: center;
}
.sec-icon { width: 30px; height: 30px; }
.security-badge span {
  font-size: 10px;
  line-height: 1.2;
  color: var(--text-muted);
}

/* 2.3 Benefits list */
.benefits { margin: 32px 0; }
.benefit-list { list-style: none; margin-top: 14px; }
.benefit-list li {
  position: relative;
  padding: 10px 0 10px 30px;
  font-size: 15px;
  color: var(--text);
  border-bottom: 1px solid #222;
}
.benefit-list li::before {
  content: "\2713";
  position: absolute;
  left: 4px;
  top: 10px;
  color: var(--green);
  font-weight: 800;
  font-size: 16px;
}

/* 2.4 Interactive step-by-step guide */
.guide { margin: 34px 0; }
.steps { list-style: none; counter-reset: step; }
.step {
  border: 1px solid #262626;
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  background: #161616;
}
.step-head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  background: none;
  border: 0;
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 700;
  text-align: left;
  padding: 14px 14px;
  cursor: pointer;
}
.step-num {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #1f1f1f;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
}
.step-label { flex: 1 1 auto; }
.step-chev {
  flex: 0 0 auto;
  color: var(--text-muted);
  transition: transform 0.2s ease;
  font-size: 18px;
}
.step.is-open .step-num { background: var(--green); color: #121212; }
.step.is-open .step-chev { transform: rotate(180deg); }
.step-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.28s ease;
  padding: 0 14px;
}
.step.is-open .step-body { max-height: 240px; padding: 0 14px 16px; }
.step-body p { color: var(--text-muted); font-size: 14px; }
.step-link {
  display: inline-block;
  margin-top: 10px;
  color: var(--green);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

/* Features */
.feature { margin: 30px 0; }
.feature-img {
  width: 100%;
  border-radius: 14px;
  display: block;
  background: #000;
}
.feature-title {
  font-size: 21px;
  font-weight: 800;
  margin: 16px 0 8px;
}
.feature-text {
  color: var(--text-muted);
  font-size: 15px;
}
.feature-cap {
  margin-top: 10px;
  font-size: 14px;
  color: var(--text-muted);
  text-align: center;
}

/* Pair of donor gifs */
.gif-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 30px 0;
}
.gif-cell .feature-img { border-radius: 12px; }
.gif-cell .feature-cap { font-size: 12px; margin-top: 6px; }

/* Brand logo row */
.brand-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  padding: 18px 16px 4px;
}
.brand-logo { height: 22px; width: auto; opacity: 0.8; }
.brand-note { font-size: 12px; color: var(--copyright); width: 100%; text-align: center; }

/* Stats */
.stats {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin: 36px 0;
  text-align: center;
}
.stat { flex: 1; }
.stat-icon { height: 30px; width: auto; margin-bottom: 8px; }
.stat-num { font-size: 22px; font-weight: 800; color: var(--green); }
.stat-label { font-size: 12px; color: var(--text-muted); }

/* CTA section */
.cta {
  text-align: center;
  background: #181818;
  border: 1px solid rgba(29, 185, 84, 0.25);
  border-radius: 18px;
  padding: 28px 18px;
  margin: 36px 0 10px;
}
.cta-title { font-size: 22px; font-weight: 800; margin-bottom: 8px; }
.cta-text { color: var(--text-muted); font-size: 14px; margin-bottom: 18px; }
.cta-note { color: var(--text-muted); font-size: 12px; margin-top: 12px; }

/* 2.5 Social proof / reviews */
.reviews { margin: 34px 0; }
.review {
  background: #161616;
  border: 1px solid #262626;
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 12px;
}
.review-top {
  display: flex;
  align-items: center;
  gap: 10px;
}
.avatar {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--green);
  color: #121212;
  font-weight: 800;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.review-meta { flex: 1 1 auto; display: flex; flex-direction: column; }
.review-name { font-size: 14px; font-weight: 700; color: var(--text); }
.review-stars { font-size: 13px; color: #FFD93B; letter-spacing: 1px; }
.review-time { flex: 0 0 auto; font-size: 11px; color: var(--text-muted); }
.review-text {
  margin-top: 10px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.45;
}

/* Footer */
.footer {
  text-align: center;
  padding: 24px 16px 8px;
}

/* Download simulation toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%) translateY(140%);
  width: calc(100% - 32px);
  max-width: 448px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: #1c1c1c;
  border: 1px solid rgba(29, 185, 84, 0.4);
  border-radius: 14px;
  padding: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: transform 0.32s ease, opacity 0.32s ease;
  z-index: 100;
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}
.toast-icon { font-size: 22px; flex: 0 0 auto; }
.toast-body { flex: 1 1 auto; }
.toast-text { font-size: 14px; color: var(--text); margin-bottom: 8px; }
.toast-bar {
  height: 6px;
  border-radius: 999px;
  background: #333;
  overflow: hidden;
}
.toast-bar span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--green);
  transition: width 0.2s linear;
}

/* Step modal */
.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.72);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  z-index: 200;
}
.modal.open { opacity: 1; visibility: visible; }
.modal-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: #1c1c1c;
  border: 1px solid rgba(29, 185, 84, 0.4);
  border-radius: 18px;
  padding: 24px 20px 20px;
}
.modal-close {
  position: absolute;
  top: 10px;
  right: 14px;
  background: none;
  border: 0;
  color: var(--text-muted);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}
.modal-title {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 14px;
}
.modal-steps {
  list-style: none;
  counter-reset: m;
  margin-bottom: 20px;
}
.modal-steps li {
  position: relative;
  padding: 10px 0 10px 34px;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 1px solid #2a2a2a;
}
.modal-steps li::before {
  counter-increment: m;
  content: counter(m);
  position: absolute;
  left: 0;
  top: 10px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--green);
  color: #121212;
  font-weight: 800;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-steps strong { color: var(--text); }
.modal-cta { width: 100%; }
.copyright { color: var(--copyright); font-size: 12px; }