/* ============================================================
 * 登录页 — Healthcare Teal Theme
 * Matches the dashboard design system
 * ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;700&display=swap');

:root {
  --primary: #0891B2;
  --primary-hover: #0E7490;
  --primary-soft: #ECFEFF;
  --accent: #059669;
  --bg: #F0FDFA;
  --card: #FFFFFF;
  --border: #E2E8F0;
  --border-strong: #CBD5E1;
  --text: #0F172A;
  --muted: #64748B;
  --sos: #B91C1C;
  --font-sans: 'Inter', 'Noto Sans SC', -apple-system, 'Segoe UI', sans-serif;
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.05);
  --radius-lg: 12px;
  --radius-md: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-frame {
  width: min(960px, calc(100% - 32px));
  margin: 16px auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.login-shell {
  display: grid;
  place-items: center;
  padding: 32px;
}

.login-card {
  width: min(820px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.8fr);
  gap: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 4vw, 44px);
  background: var(--card);
}

.login-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow {
  margin: 0;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

h1 {
  margin: 10px 0 12px;
  font-size: clamp(30px, 3.2vw, 42px);
  line-height: 1.1;
  font-weight: 700;
  color: var(--text);
}

.login-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.5;
}

.login-form {
  display: grid;
  gap: 14px;
  align-self: center;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

input {
  width: 100%;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  color: var(--text);
  background: var(--card);
  font: inherit;
  outline: none;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.15);
}

input:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.4);
}

button {
  border: 1px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  color: #fff;
  background: var(--primary);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: background 150ms ease, border-color 150ms ease;
}

button:hover {
  border-color: var(--primary-hover);
  background: var(--primary-hover);
}

button:active {
  transform: scale(0.98);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.4);
}

.login-message {
  min-height: 20px;
  color: var(--sos);
  font-size: 14px;
  font-weight: 600;
}

.login-footer {
  display: grid;
  gap: 0;
  font-size: 13px;
  text-align: center;
}

.login-footer > div:first-child {
  padding: 14px 20px;
  background: #1E293B;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 600;
}

.login-footer > div:last-child {
  display: flex;
  justify-content: center;
  gap: 24px;
  padding: 16px 20px;
  background: #0F172A;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}

.login-footer a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 150ms ease;
}

.login-footer a:hover {
  color: #22D3EE;
}

@media (max-width: 760px) {
  .login-card {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .login-frame {
    width: min(100% - 20px, 960px);
    margin: 10px auto;
  }

  .login-footer > div:last-child {
    flex-direction: column;
    gap: 8px;
  }

  .login-footer a {
    display: block;
    margin: 4px 0 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
  }
}