:root {
  --bg: #070b16;
  --panel: rgba(17, 25, 47, 0.82);
  --line: rgba(148, 163, 184, 0.16);
  --text: #f8fbff;
  --muted: #9ca8c7;
  --primary: #7c8cff;
  --primary-2: #5fd0ff;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 20%, rgba(124, 140, 255, 0.22), transparent 28%),
    radial-gradient(circle at 82% 14%, rgba(95, 208, 255, 0.12), transparent 20%),
    linear-gradient(180deg, #060914 0%, #091120 42%, #070b16 100%);
}

.flow-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px 16px;
}

.flow-card {
  width: min(100%, 760px);
  border-radius: 30px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(17, 25, 47, 0.82), rgba(9, 14, 28, 0.92));
  box-shadow: 0 24px 80px rgba(3, 8, 20, 0.5);
  padding: 32px;
}

.back-link {
  position: fixed;
  top: 22px;
  left: 22px;
  color: #dbe4ff;
  text-decoration: none;
  font-weight: 600;
}

.eyebrow {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(124, 140, 255, 0.1);
  border: 1px solid rgba(124, 140, 255, 0.18);
  color: #d3dcff;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

h1 {
  margin: 16px 0 10px;
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  letter-spacing: -0.05em;
}

.intro { color: var(--muted); }

.flow-form {
  margin-top: 26px;
  display: grid;
  gap: 18px;
}

.grid.two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  color: #dbe4ff;
  font-size: 0.92rem;
  font-weight: 600;
}

input, select {
  border-radius: 16px;
  border: 1px solid rgba(148, 163, 184, 0.14);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  padding: 14px 16px;
  font: inherit;
  outline: none;
}

option { color: #111827; }

.summary-card, .stripe-box {
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  padding: 22px;
}

.summary-card h2 {
  margin-top: 0;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
  color: var(--muted);
}

.summary-row strong { color: white; }
.summary-row.total { border-bottom: none; padding-bottom: 0; }
.summary-row.total strong { font-size: 1.4rem; }

.primary-button {
  border: none;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), #5d6dff 48%, var(--primary-2));
  color: white;
  padding: 14px 18px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.stripe-shell .flow-card { max-width: 620px; }
.stripe-top {
  margin-bottom: 16px;
  color: #b8c5ff;
  font-weight: 700;
}

.stripe-fields {
  display: grid;
  gap: 12px;
  margin-bottom: 18px;
}

.fake-field {
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.12);
  background: rgba(8, 12, 24, 0.6);
  color: var(--muted);
  padding: 14px 16px;
}

@media (max-width: 700px) {
  .grid.two { grid-template-columns: 1fr; }
  .flow-card { padding: 24px; }
}