:root {
  --bg: #0b1220;
  --card: #121a2b;
  --accent: #4c7dff;
  --text: #e6eefc;
  --muted: #a7b4d6;
  --danger: #ff6b6b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(circle at top left, #18243d, #0b1220 60%);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page {
  width: min(1100px, 92vw);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 32px;
  align-items: stretch;
}

.brand {
  padding: 48px 40px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 24px;
  background: rgba(18, 26, 43, 0.6);
  backdrop-filter: blur(8px);
}

.logo {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: var(--accent);
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 18px;
}

.brand h1 {
  margin: 0 0 6px;
  font-size: 28px;
}

.brand p {
  margin: 0 0 18px;
  color: var(--muted);
}

.brand ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 24px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 520px;
}

.card header h2 {
  margin: 0 0 8px;
  font-size: 24px;
}

.card header p {
  margin: 0;
  color: var(--muted);
}

.field {
  display: grid;
  gap: 8px;
  margin: 20px 0 0;
}

.field input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: #0f172a;
  color: var(--text);
  font-size: 15px;
}

.field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(76, 125, 255, 0.2);
}

.password {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
}

.password button {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--muted);
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
}

.row {
  margin: 16px 0 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: var(--muted);
}

.checkbox {
  display: flex;
  gap: 8px;
  align-items: center;
}

.link {
  color: var(--accent);
  text-decoration: none;
}

.primary {
  margin-top: 24px;
  width: 100%;
  padding: 12px 16px;
  border-radius: 12px;
  border: none;
  background: var(--accent);
  color: white;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
}

.hint {
  margin: 12px 0 0;
  min-height: 20px;
  color: var(--danger);
  font-size: 14px;
}

footer {
  margin-top: 30px;
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted);
}

@media (max-width: 900px) {
  .page {
    grid-template-columns: 1fr;
  }
  .brand {
    display: none;
  }
  .card {
    min-height: auto;
  }
}