:root {
  --bg: #0b1020;
  --panel: #151b2e;
  --panel-2: #1c2438;
  --text: #e8ecf5;
  --muted: #9aa6bf;
  --accent: #6c8cff;
  --accent-2: #3ad29f;
  --danger: #ff6b6b;
  --line: #263049;
  --radius: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(1200px 600px at 20% -10%, #182242 0%, var(--bg) 60%);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

.wrap {
  max-width: 1000px;
  margin: 0 auto;
  min-height: 100vh;
  padding: 32px 24px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
@media (max-width: 820px) { .wrap { grid-template-columns: 1fr; gap: 24px; } }

.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 26px; }
.brand-mark { width: 16px; height: 16px; border-radius: 5px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.brand-name { font-weight: 700; letter-spacing: 0.16em; }

.brand-side h1 { font-size: 34px; line-height: 1.15; margin: 0 0 14px; }
.brand-side p { color: var(--muted); line-height: 1.6; margin: 0 0 18px; }
.bullets { list-style: none; padding: 0; margin: 0; }
.bullets li { position: relative; padding-left: 22px; margin: 10px 0; color: var(--text); }
.bullets li::before { content: ""; position: absolute; left: 0; top: 7px; width: 9px; height: 9px; border-radius: 3px; background: var(--accent-2); }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.tabs { display: flex; gap: 8px; margin-bottom: 18px; }
.tab { padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line); background: transparent; color: var(--muted); cursor: pointer; font: inherit; }
.tab.is-active { background: var(--accent); color: #0a0f1e; border-color: transparent; font-weight: 600; }

label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 6px; }
input { width: 100%; padding: 11px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--panel-2); color: var(--text); font: inherit; }
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.btn { display: inline-flex; align-items: center; justify-content: center; width: 100%; padding: 12px 18px; margin-top: 18px; border-radius: 10px; border: none; background: var(--accent); color: #0a0f1e; font-weight: 700; cursor: pointer; font: inherit; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.notice { margin-top: 14px; padding: 11px 13px; border-radius: 10px; font-size: 13px; line-height: 1.5; }
.notice-error { background: rgba(255, 107, 107, 0.12); border: 1px solid rgba(255, 107, 107, 0.35); color: #ffd2d2; }
.hint { color: var(--muted); font-size: 12px; margin-top: 14px; line-height: 1.5; }