:root {
  color-scheme: light;
  --background: #ffffff;
  --foreground: #0f172a;
  --muted-foreground: #64748b;
  --card: #ffffff;
  --card-foreground: #0f172a;
  --border: #e2e8f0;
  --input: #dbe4f0;
  --ring: rgba(15, 23, 42, 0.14);
  --primary: #111827;
  --primary-foreground: #ffffff;
  --error-border: #fecaca;
  --error-bg: #fef2f2;
  --error-text: #b91c1c;
  --success-border: #bbf7d0;
  --success-bg: #f0fdf4;
  --success-text: #166534;
  --shadow: 0 20px 45px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body.login-page {
  background:
    radial-gradient(circle at top, rgba(226, 232, 240, 0.65), transparent 32%),
    linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
  color: var(--foreground);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
}

.login-layout {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 16px;
}

.login-panel {
  width: 100%;
  max-width: 448px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 24px;
}

.brand-icon {
  width: 34px;
  height: 34px;
  color: #0f172a;
}

.brand-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.login-card {
  background: var(--card);
  color: var(--card-foreground);
  border: 1px solid rgba(226, 232, 240, 0.95);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 28px;
}

.login-card-header {
  margin-bottom: 22px;
}

.login-card h1 {
  margin: 0;
  font-size: 1.55rem;
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.subtitle {
  margin: 8px 0 0;
  color: var(--muted-foreground);
  font-size: 0.95rem;
  line-height: 1.55;
}

.alerts {
  margin-bottom: 18px;
}

.alert {
  border-radius: 12px;
  border: 1px solid transparent;
  padding: 12px 14px;
  font-size: 0.92rem;
  line-height: 1.45;
}

.alert + .alert {
  margin-top: 10px;
}

.alert-error {
  background: var(--error-bg);
  border-color: var(--error-border);
  color: var(--error-text);
}

.alert-success {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success-text);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-group label,
.password-heading label {
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.3;
}

.password-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.password-heading a,
.register-copy a {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.password-heading a {
  color: var(--muted-foreground);
  font-size: 0.86rem;
}

.password-heading a:hover,
.register-copy a:hover {
  color: var(--foreground);
}

input {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--input);
  border-radius: 12px;
  background: #ffffff;
  color: var(--foreground);
  font: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

input::placeholder {
  color: #94a3b8;
}

input:focus {
  outline: none;
  border-color: #94a3b8;
  box-shadow: 0 0 0 4px var(--ring);
}

.register-copy {
  margin: -2px 0 0;
  color: var(--muted-foreground);
  text-align: center;
  font-size: 0.9rem;
  line-height: 1.5;
}

.submit-button {
  width: 100%;
  height: 46px;
  border: 0;
  border-radius: 12px;
  background: var(--primary);
  color: var(--primary-foreground);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.2s ease, background-color 0.2s ease;
}

.submit-button:hover {
  opacity: 0.94;
}

.submit-button:active {
  transform: translateY(1px);
}

.submit-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px var(--ring);
}

@media (max-width: 640px) {
  .login-layout {
    padding: 32px 14px;
  }

  .brand-title {
    font-size: 1.8rem;
  }

  .login-card {
    padding: 22px 18px;
    border-radius: 16px;
  }

  .password-heading {
    flex-direction: column;
    align-items: flex-start;
  }
}