/* Login page — reuses generator visual language (neutral functional admin UI) */

:root {
  --color-bg: #f4f5f7;
  --color-surface: #ffffff;
  --color-border: #d0d5dd;
  --color-border-strong: #98a2b3;
  --color-text: #1d2939;
  --color-text-muted: #667085;
  --color-primary: #344054;
  --color-primary-hover: #1d2939;
  --color-accent: #2e90fa;
  --color-danger: #d92d20;
  --color-danger-bg: #fef3f2;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.06);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --max-width: 1100px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body.login-page {
  margin: 0;
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.app-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
  margin-bottom: var(--space-lg);
}

.app-header h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.app-header .subtitle {
  margin: var(--space-xs) 0 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.login-main {
  flex: 1;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-bottom: var(--space-xl);
}

.login-card {
  width: 100%;
  max-width: 26rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--space-lg);
  margin-top: var(--space-xl);
}

.login-card h2 {
  margin: 0 0 var(--space-sm);
  font-size: 1.125rem;
  font-weight: 600;
}

.hint {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0 0 var(--space-md);
}

.field-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.field-row label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}

input[type="password"] {
  width: 100%;
  font: inherit;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.625rem 0.75rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input[type="password"]:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(46, 144, 250, 0.2);
}

input[type="password"].is-invalid {
  border-color: var(--color-danger);
}

input[type="password"].is-invalid:focus {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 3px rgba(217, 45, 32, 0.18);
}

.login-error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid #fecdca;
  border-radius: var(--radius);
  padding: 0.625rem 0.75rem;
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
}

.login-actions {
  display: flex;
  gap: var(--space-sm);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  padding: 0.625rem 1rem;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  width: 100%;
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.btn-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(46, 144, 250, 0.35);
}

.app-footer {
  margin-top: auto;
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.app-footer p {
  margin: 0;
}

@media (max-width: 390px) {
  .login-card {
    margin-top: var(--space-md);
  }
}