:root {
  --bg: #0b1020;
  --bg2: #10162e;
  --card: #151d38;
  --line: #26325c;
  --text: #eaf0ff;
  --muted: #9aa8d0;
  --brand: #2ee6a6;
  --brand2: #4f8cff;
  --danger: #ff6b6b;
  --warn: #ffc15c;
  --radius: 16px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, #1a2450 0%, var(--bg) 60%);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 16px 48px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.brand .logo {
  width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  display: grid; place-items: center;
  font-weight: 800; color: #05122a; font-size: 20px;
}
.brand h1 { font-size: 20px; margin: 0; letter-spacing: .2px; }
.brand p { margin: 2px 0 0; color: var(--muted); font-size: 13px; }

.card {
  width: 100%; max-width: 440px;
  background: linear-gradient(180deg, var(--card), var(--bg2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 24px 60px rgba(0,0,0,.35);
}
h2 { margin: 0 0 6px; font-size: 18px; }
.sub { color: var(--muted); font-size: 13.5px; margin: 0 0 18px; line-height: 1.5; }

label { display: block; font-size: 13px; color: var(--muted); margin: 14px 0 6px; }
input, select {
  width: 100%; padding: 13px 14px;
  background: #0d1430; border: 1px solid var(--line);
  border-radius: 12px; color: var(--text); font-size: 15px;
  outline: none; transition: border .15s;
}
input:focus, select:focus { border-color: var(--brand2); }
input::placeholder { color: #5f6d97; }

.btn {
  width: 100%; margin-top: 18px; padding: 14px;
  border: none; border-radius: 12px; cursor: pointer;
  font-size: 15px; font-weight: 700; color: #05122a;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  transition: transform .05s, opacity .15s;
}
.btn:hover { opacity: .94; }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn.secondary { background: #1b2547; color: var(--text); border: 1px solid var(--line); }

.pay-btn {
  display: flex; align-items: center; gap: 12px; text-align: left;
  width: 100%; margin-top: 12px; padding: 14px 16px;
  border-radius: 12px; cursor: pointer; color: var(--text);
  background: #0d1430; border: 1px solid var(--line);
  font-size: 15px; font-weight: 600; transition: border .15s, background .15s;
}
.pay-btn:hover { border-color: var(--brand2); background: #111a3c; }
.pay-btn.off { opacity: .45; cursor: not-allowed; }
.pay-btn.off:hover { border-color: var(--line); background: inherit; }
.pay-btn .ico { width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center; font-size: 18px; }
.pay-btn .ico.crypto { background: rgba(46,230,166,.15); }
.pay-btn .ico.clip { background: rgba(79,140,255,.15); }
.pay-btn small { display: block; color: var(--muted); font-weight: 400; font-size: 12.5px; margin-top: 2px; }

.row { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.row:last-child { border-bottom: none; }
.row .k { color: var(--muted); }
.row .v { font-weight: 700; }
.total { font-size: 20px; }
.total .v { color: var(--brand); }

.pill { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.pill.active { background: rgba(46,230,166,.15); color: var(--brand); }
.pill.expired { background: rgba(255,107,107,.15); color: var(--danger); }
.pill.new { background: rgba(255,193,92,.15); color: var(--warn); }

.note { font-size: 12.5px; color: var(--muted); margin-top: 14px; line-height: 1.5; }
.error { background: rgba(255,107,107,.12); border: 1px solid rgba(255,107,107,.4); color: #ffd0d0; padding: 12px 14px; border-radius: 12px; font-size: 13.5px; margin-top: 14px; }
.hidden { display: none !important; }
.center { text-align: center; }
.spinner { width: 34px; height: 34px; border: 3px solid var(--line); border-top-color: var(--brand); border-radius: 50%; margin: 8px auto 0; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.support { width: 100%; max-width: 440px; margin-top: 18px; padding: 16px; text-align: center;
  background: linear-gradient(180deg, #14203f, #0e1730); border: 1px solid var(--line); border-radius: var(--radius); }
.support-msg { margin: 0 0 12px; color: var(--muted); font-size: 13.5px; }
.support-links { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.support-btn { display: inline-flex; align-items: center; gap: 6px; padding: 10px 16px; border-radius: 10px;
  font-size: 14px; font-weight: 700; text-decoration: none; }
.support-btn.wa { background: #25d366; color: #05231a; }
.support-btn.site { background: #1b2547; color: var(--text); border: 1px solid var(--line); }
.support-btn:hover { opacity: .92; }
.footer { color: #4a577e; font-size: 12px; margin-top: 22px; }
a { color: var(--brand2); }
.stepper { display: flex; gap: 8px; }
.stepper button { flex: 0 0 46px; padding: 12px 0; }
.stepper input { text-align: center; font-weight: 700; }