/* BOS Docs V2 — login page styles.
   Framework-free, no build step. Tokens live in variables.css. */

@import url("variables.css");

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6) var(--space-4);
  background: var(--page-bg);
  color: var(--text-primary);
  font: 15px/1.55 var(--font-sans);
}

/* ---------------------------------------------------------------
   Card
   --------------------------------------------------------------- */

.login-card {
  width: min(92vw, var(--card-max-width));
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-10) var(--space-8);
  animation: card-fade-in var(--duration-base) var(--ease) both;
}

@keyframes card-fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.login-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: var(--space-6);
}
.login-logo { height: 28px; width: auto; margin-bottom: var(--space-4); }
.login-title {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}
.login-subtitle {
  margin: var(--space-1) 0 0;
  font-size: 13.5px;
  color: var(--text-muted);
}

.login-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0 0 var(--space-6);
}

/* ---------------------------------------------------------------
   Error banner (server/mock-auth level — distinct from field errors)
   --------------------------------------------------------------- */

.login-banner {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-5);
  border: 1px solid var(--color-error-border);
  background: var(--color-error-bg);
  border-radius: var(--radius-md);
  color: var(--color-error);
  font-size: 13.5px;
  line-height: 1.4;
}
.login-banner[hidden] { display: none; }
.login-banner img { flex: 0 0 auto; width: 16px; height: 16px; margin-top: 1px; }

/* ---------------------------------------------------------------
   Form
   --------------------------------------------------------------- */

.login-form { display: flex; flex-direction: column; gap: var(--space-5); }

.form-field { display: flex; flex-direction: column; }

.field-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.field-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.field-link {
  font-size: 12.5px;
  color: var(--text-muted);
  text-decoration: none;
}
.field-link:hover { color: var(--text-primary); text-decoration: underline; }

.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.input-icon {
  position: absolute;
  left: var(--space-3);
  width: 17px;
  height: 17px;
  pointer-events: none;
}
.input-wrap input {
  width: 100%;
  height: 42px;
  padding: 0 var(--space-3) 0 calc(var(--space-3) * 2 + 17px);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--text-primary);
  font: inherit;
  font-size: 14.5px;
  transition: border-color var(--duration-fast) var(--ease), box-shadow var(--duration-fast) var(--ease);
}
.input-wrap input::placeholder { color: var(--text-disabled); }
.input-wrap input:hover { border-color: var(--color-grey-400); }
.input-wrap input:focus-visible {
  outline: none;
  border-color: var(--color-black);
  box-shadow: var(--shadow-focus);
}
.input-wrap input:disabled { background: var(--color-grey-100); color: var(--text-disabled); }

.password-toggle {
  position: absolute;
  right: var(--space-2);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease);
}
.password-toggle:hover { background: var(--color-grey-100); }
.password-toggle:focus-visible { outline: 2px solid var(--color-black); outline-offset: 2px; }
.password-toggle img { width: 18px; height: 18px; }

/* Field-level validation error */
.field-error {
  margin-top: var(--space-2);
  font-size: 12.5px;
  color: var(--color-error);
}
.field-error:empty { display: none; }

.input-wrap input[aria-invalid="true"] {
  border-color: var(--color-error-border);
}
.input-wrap input[aria-invalid="true"]:focus-visible {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* ---------------------------------------------------------------
   Submit button — disabled -> enabled -> loading (then a real page
   navigation on success/failure, handled by Apache; see login.js)
   --------------------------------------------------------------- */

.login-submit {
  height: 44px;
  border: none;
  border-radius: var(--radius-md);
  font: inherit;
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  background: var(--color-black);
  color: var(--color-white);
  transition: background var(--duration-fast) var(--ease), transform var(--duration-fast) var(--ease),
              opacity var(--duration-fast) var(--ease);
}
.login-submit:hover:not(:disabled) { background: var(--color-grey-700); }
.login-submit:active:not(:disabled) { transform: scale(0.99); }
.login-submit:focus-visible { outline: 2px solid var(--color-black); outline-offset: 3px; }

.login-submit:disabled {
  background: var(--color-grey-200);
  color: var(--color-grey-400);
  cursor: not-allowed;
}

.login-submit .btn-spinner { display: none; width: 17px; height: 17px; }

.login-submit[data-state="loading"] {
  background: var(--color-grey-700);
  cursor: wait;
}
.login-submit[data-state="loading"] .btn-spinner {
  display: inline-block;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---------------------------------------------------------------
   Footer
   --------------------------------------------------------------- */

.login-footer {
  margin: var(--space-6) 0 0;
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}
.login-footer strong { color: var(--text-primary); font-weight: 500; }

/* ---------------------------------------------------------------
   Responsive
   --------------------------------------------------------------- */

@media (max-width: 480px) {
  .login-card { padding: var(--space-8) var(--space-6); }
  .login-title { font-size: 18px; }
}

/* ---------------------------------------------------------------
   Reduced motion
   --------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .login-card { animation: none; }
  .login-submit,
  .input-wrap input,
  .password-toggle,
  .btn-spinner {
    transition: none !important;
    animation-duration: 0.001ms !important;
  }
}