:root {
  --bg: #f5f5f7;
  --surface: #ffffff;
  --surface-2: #fbfbfd;
  --border: #e5e5ea;
  --border-strong: #d2d2d7;
  --text: #1d1d1f;
  --muted: #86868b;
  --accent: #0071e3;
  --black: #1d1d1f;
  --green: #34c759;
  --red: #ff3b30;
  --amber: #ff9500;
  --radius: 20px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 12px 34px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 2px 4px rgba(0, 0, 0, 0.05), 0 18px 44px rgba(0, 0, 0, 0.08);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}
* { box-sizing: border-box; }
::selection { background: rgba(0, 113, 227, 0.16); }
:focus-visible { outline: 3px solid rgba(0, 113, 227, 0.32); outline-offset: 2px; }
html, body { margin: 0; min-height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  -webkit-tap-highlight-color: transparent;
}
a { color: var(--accent); text-decoration: none; transition: opacity 0.2s var(--ease); }
a:hover { opacity: 0.72; }
button, input { font: inherit; color: inherit; }
[hidden] { display: none !important; }
.muted { color: var(--muted); }

.top {
  max-width: 1180px;
  margin: 0 auto;
  padding: 26px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 11px; color: var(--text); font-weight: 600; letter-spacing: -0.02em; }
.brand small { display: block; color: var(--muted); font-weight: 400; font-size: 11px; letter-spacing: 0; }
.mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--black);
  color: #fff;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.03em;
}
.top-right { display: flex; gap: 16px; align-items: center; }
.link { background: none; border: 0; color: var(--muted); cursor: pointer; transition: color 0.18s var(--ease); }
.link:hover { color: var(--text); }

.main { max-width: 1180px; margin: 0 auto; padding: 14px 22px 70px; }
.auth-wrap { display: grid; place-items: center; padding: 54px 0; }
.auth-card {
  width: min(430px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 26px;
  padding: 28px;
  box-shadow: var(--shadow);
  animation: rise 0.5s var(--ease) both;
}
@keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.tabs { display: flex; gap: 6px; background: #f5f5f7; border: 1px solid var(--border); border-radius: 12px; padding: 4px; }
.tab { flex: 1; border: 0; background: transparent; color: var(--muted); padding: 8px; border-radius: 9px; cursor: pointer; font-size: 13px; transition: background 0.2s var(--ease), color 0.2s var(--ease), box-shadow 0.2s var(--ease); }
.tab:hover { color: var(--text); }
.tab.active { background: var(--surface); color: var(--text); box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08); font-weight: 500; }
.form { display: flex; flex-direction: column; gap: 13px; margin-top: 22px; }
.form h2 { margin: 0; font-size: 21px; letter-spacing: -0.025em; font-weight: 600; }
.form p { margin: 0; }
.form label { display: flex; flex-direction: column; gap: 7px; font-size: 12px; color: var(--muted); font-weight: 500; }
.form input {
  width: 100%;
  padding: 11px 13px;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}
.form input:hover { border-color: #b8b8be; }
.form input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.12); }
.hint { font-size: 12px; color: var(--muted); }
.err { color: var(--red); font-size: 13px; margin-top: 10px; }

.pw-strength { display: flex; gap: 4px; margin: 2px 0 4px; }
.pw-strength i { flex: 1; height: 4px; border-radius: 999px; background: #e5e5ea; transition: background 0.2s var(--ease); }
.pw-strength i.on { background: var(--green); }
.pw-rules { list-style: none; padding: 0; margin: 2px 0 4px; display: grid; grid-template-columns: 1fr 1fr; gap: 4px 10px; font-size: 12px; color: var(--muted); }
.pw-rules li::before { content: "○ "; }
.pw-rules li.ok { color: var(--green); }
.pw-rules li.ok::before { content: "✓ "; }
.mint-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.mint-row select { min-width: 280px; max-width: 100%; }
.mint-row input[type="number"] { width: 100px; }

.btn {
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  padding: 10px 15px;
  border-radius: 11px;
  cursor: pointer;
  font-size: 13px;
  transition: transform 0.16s var(--ease), background 0.18s var(--ease), border-color 0.18s var(--ease), box-shadow 0.18s var(--ease), opacity 0.18s var(--ease);
}
.btn:hover { background: #f5f5f7; border-color: #c7c7cc; transform: translateY(-1px); }
.btn:active { transform: scale(0.97); }
.btn.primary { background: var(--black); border-color: var(--black); color: #fff; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08); }
.btn.primary:hover { background: #000; border-color: #000; box-shadow: 0 8px 22px rgba(0, 0, 0, 0.16); }
.btn.small { padding: 6px 10px; font-size: 12px; border-radius: 8px; }
.btn:disabled { opacity: 0.38; cursor: not-allowed; transform: none; box-shadow: none; }

.hero { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; margin: 8px 0 22px; }
.hero h1 { margin: 0 0 5px; font-size: 31px; letter-spacing: -0.035em; font-weight: 600; }
.hero p { margin: 0; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: #dcdce1; }
.card .label { color: var(--muted); font-size: 12px; font-weight: 500; }
.card .value { font-size: 32px; font-weight: 600; letter-spacing: -0.04em; margin-top: 6px; font-variant-numeric: tabular-nums; }
.card .sub { color: var(--muted); font-size: 12px; margin-top: 4px; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 18px;
  box-shadow: var(--shadow);
  animation: fadeUp 0.35s var(--ease) both;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; }
.panel-head h2 { font-size: 17px; letter-spacing: -0.02em; margin: 0; font-weight: 600; }

.vault-upload { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 4px 0 16px; }
.vault-upload input[type="file"] {
  border: 1px dashed var(--border-strong);
  border-radius: 11px;
  padding: 9px 12px;
  background: #fbfbfd;
  max-width: 100%;
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.vault-upload input[type="file"]:hover { border-color: var(--accent); background: #fff; }
.vault-upload select { min-width: 220px; max-width: 100%; }
.vault-upload .muted { font-size: 12px; }

.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 12px; }
.plan {
  border: 1px solid var(--border);
  background: var(--surface-2);
  border-radius: 16px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease), border-color 0.22s var(--ease), background 0.22s var(--ease);
}
.plan:hover { transform: translateY(-2px); border-color: #dcdce1; background: #fff; box-shadow: var(--shadow); }
.plan h3 { margin: 0; font-size: 16px; letter-spacing: -0.02em; font-weight: 600; }
.plan .meta { color: var(--muted); font-size: 12px; }
.plan .row { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 6px; }
.cost { color: var(--amber); font-weight: 600; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 8px; border-bottom: 1px solid #f0f0f2; font-size: 13px; }
th { color: var(--muted); font-weight: 500; font-size: 12px; }
tbody tr { transition: background 0.16s var(--ease); }
tbody tr:hover td { background: #fafafc; }
tr:last-child td { border-bottom: 0; }
.mono { font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace; font-size: 12px; }
.empty { color: var(--muted); text-align: center; padding: 28px; }

.badge { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 11px; font-weight: 500; border: 1px solid transparent; }
.badge.active { color: #1c7c3a; background: #eaf8ee; border-color: #c9efd3; }
.badge.unused { color: #6e6e73; background: #f5f5f7; border-color: #e5e5ea; }
.badge.expired, .badge.banned { color: #c4271e; background: #fff0ef; border-color: #ffd6d2; }
.badge.exhausted { color: #a05a00; background: #fff6e8; border-color: #ffe1b8; }

.modal { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.28); backdrop-filter: blur(14px); display: grid; place-items: center; padding: 24px; z-index: 50; animation: fadeIn 0.2s ease both; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal-box { width: min(560px, 100%); background: var(--surface); border: 1px solid var(--border); border-radius: 22px; box-shadow: 0 30px 90px rgba(0, 0, 0, 0.2); animation: pop 0.28s var(--ease) both; }
@keyframes pop { from { opacity: 0; transform: translateY(10px) scale(0.985); } to { opacity: 1; transform: none; } }
.modal-box header { display: flex; justify-content: space-between; align-items: center; padding: 17px 20px; border-bottom: 1px solid var(--border); }
.modal-box h2 { font-size: 17px; letter-spacing: -0.02em; margin: 0; font-weight: 600; }
.modal-box #modal-body { padding: 20px; }
.icon { background: none; border: 0; color: var(--muted); font-size: 24px; cursor: pointer; transition: color 0.18s var(--ease), transform 0.18s var(--ease); }
.icon:hover { color: var(--text); transform: rotate(90deg); }
.code { font-family: ui-monospace, Consolas, monospace; font-size: 18px; letter-spacing: 1px; background: #f5f5f7; border: 1px dashed var(--border-strong); border-radius: 12px; padding: 15px; text-align: center; word-break: break-all; }

.toast { position: fixed; right: 24px; bottom: 24px; background: var(--black); border: 1px solid var(--black); color: #fff; padding: 12px 17px; border-radius: 12px; z-index: 100; box-shadow: 0 14px 40px rgba(0, 0, 0, 0.22); animation: toastIn 0.3s var(--ease) both; }
.toast.error { background: #c4271e; border-color: #c4271e; }
@keyframes toastIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}
@media (max-width: 680px) {
  .hero { flex-direction: column; align-items: flex-start; }
  .hero h1 { font-size: 26px; }
  .top { padding: 18px; }
  .main { padding: 8px 18px 46px; }
}