/* login.css — Sign-in page only.
   Global foundation (fonts, tokens, base, wallpaper, reduced-motion) lives in
   css/main.css. This file adds the login window chrome and form components. */

.desktop {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
}

/* ---------- Window chrome ---------- */

.window {
  position: relative;
  width: min(400px, 100%);
  background-color: var(--face);
  padding: 3px;
  box-shadow:
    inset -1px -1px 0 0 var(--dark),
    inset 1px 1px 0 0 var(--face-light),
    inset -2px -2px 0 0 var(--shadow),
    inset 2px 2px 0 0 var(--highlight),
    var(--shadow-cast);
}

.title-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 24px;
  padding: 2px 2px 2px 5px;
  background: linear-gradient(90deg, var(--title-a) 0%, var(--title-b) 100%);
  color: var(--title-text);
}

.title-bar-text {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.title-bar-controls {
  display: flex;
  gap: 2px;
  flex: 0 0 auto;
}

.tb-btn {
  position: relative;
  display: inline-block;
  width: 17px;
  height: 15px;
  background-color: var(--face);
  border: 1px solid var(--highlight);
  border-right-color: var(--dark);
  border-bottom-color: var(--dark);
  box-shadow: inset -1px -1px 0 0 var(--shadow), inset 1px 1px 0 0 var(--face-light);
}

.tb-min::after {
  content: '';
  position: absolute;
  left: 4px;
  bottom: 3px;
  width: 6px;
  height: 2px;
  background-color: var(--text);
}

.tb-max::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 3px;
  width: 7px;
  height: 6px;
  border: 1px solid var(--text);
  border-top-width: 2px;
}

.tb-close::before,
.tb-close::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 6px;
  width: 8px;
  height: 2px;
  background-color: var(--text);
}

.tb-close::before { transform: rotate(45deg); }
.tb-close::after { transform: rotate(-45deg); }

.window-body {
  padding: 20px 18px 18px;
  color: var(--text);
}

/* ---------- Brand ---------- */

.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  margin-bottom: 20px;
}

.brand-logo {
  width: 56px;
  height: 56px;
  image-rendering: pixelated;
}

.brand-mark {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-shadow: 1px 1px 0 var(--highlight);
}

@media (prefers-color-scheme: dark) {
  .brand-mark { text-shadow: 1px 1px 0 #000; }
}

.brand-tagline {
  margin: 0;
  max-width: 30ch;
  font-size: 12px;
  color: var(--text-muted);
  text-wrap: balance;
}

/* ---------- Alert ---------- */

.alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
  padding: 10px 12px;
  background-color: var(--face-light);
  border: 1px solid var(--highlight);
  border-right-color: var(--shadow);
  border-bottom-color: var(--shadow);
  box-shadow: inset 1px 1px 0 0 var(--highlight), inset -1px -1px 0 0 var(--shadow);
}

.alert[hidden] { display: none; }

.alert-icon {
  flex: 0 0 auto;
  margin-top: 1px;
}

.alert-text {
  margin: 0;
  font-size: 12px;
  color: var(--text);
}

/* ---------- Form: fields ---------- */

.field { margin-bottom: 14px; }

.field-label {
  display: block;
  margin-bottom: 5px;
  font-size: 12px;
}

.field-row {
  display: flex;
  gap: 6px;
  align-items: stretch;
}

.field-input {
  flex: 1 1 auto;
  width: 100%;
  min-width: 0;
  min-height: 40px;
  padding: 7px 9px;
  font-family: inherit;
  font-size: 13px;
  color: var(--input-text);
  background-color: var(--input-bg);
  border: 1px solid var(--dark);
  border-right-color: var(--highlight);
  border-bottom-color: var(--highlight);
  box-shadow: inset 1px 1px 0 0 rgba(0, 0, 0, 0.32);
  border-radius: 0;
  appearance: none;
}

.field-input::placeholder { color: var(--text-muted); opacity: 1; }

.field-input:focus {
  outline: none;
  border-color: var(--focus-ring);
  border-right-color: var(--focus-ring);
  border-bottom-color: var(--focus-ring);
  box-shadow: inset 1px 1px 0 0 rgba(0, 0, 0, 0.32), 0 0 0 2px var(--focus-ring);
}

.field-input[aria-invalid="true"] {
  border-color: var(--error-accent);
  border-right-color: var(--error-accent);
  border-bottom-color: var(--error-accent);
}

.field-error {
  display: none;
  margin: 5px 0 0;
  font-size: 11px;
  font-weight: 700;
  color: var(--error-accent);
}

.field-error.is-visible { display: block; }

/* Non-blocking hint (Caps Lock) — muted so it doesn't read as a failed field. */
.field-hint {
  display: none;
  margin: 5px 0 0;
  font-size: 11px;
  color: var(--text-muted);
}

.field-hint::before { content: '\26A0\FE0E\00A0'; }

.field-hint.is-visible { display: block; }

/* ---------- Form: buttons ---------- */

.btn {
  font-family: inherit;
  font-size: 13px;
  color: var(--text);
  background-color: var(--face);
  border: 1px solid var(--highlight);
  border-right-color: var(--dark);
  border-bottom-color: var(--dark);
  box-shadow: inset -1px -1px 0 0 var(--shadow), inset 1px 1px 0 0 var(--face-light);
  border-radius: 0;
  cursor: pointer;
  touch-action: manipulation;
  transition: background-color var(--motion-fast) var(--motion-ease);
}

.btn:hover { background-color: var(--face-light); }

.btn:active {
  padding: 1px 0 0 1px;
  box-shadow: inset 1px 1px 0 0 var(--shadow);
}

.btn:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.btn[disabled] {
  color: var(--input-disabled-text);
  cursor: progress;
}

.btn[disabled]:hover { background-color: var(--face); }

.btn-secondary {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 0 12px;
  font-size: 12px;
}

/* Default (Enter-key) button: Win98 draws an extra dark ring outside the bevel. */
.btn-primary {
  display: block;
  width: 100%;
  min-height: 44px;
  margin-top: 6px;
  font-size: 14px;
  font-weight: 700;
  box-shadow:
    0 0 0 1px var(--dark),
    inset -1px -1px 0 0 var(--shadow),
    inset 1px 1px 0 0 var(--face-light);
}

.btn-primary:active {
  box-shadow: 0 0 0 1px var(--dark), inset 1px 1px 0 0 var(--shadow);
}

/* ---------- Form: checkbox ---------- */

.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  cursor: pointer;
  user-select: none;
  touch-action: manipulation;
}

.checkbox input[type="checkbox"] {
  position: relative;
  flex: 0 0 auto;
  width: 17px;
  height: 17px;
  margin: 0;
  appearance: none;
  background-color: var(--input-bg);
  border: 1px solid var(--dark);
  border-right-color: var(--highlight);
  border-bottom-color: var(--highlight);
  box-shadow: inset 1px 1px 0 0 rgba(0, 0, 0, 0.32);
  cursor: pointer;
}

.checkbox input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--text);
  border-bottom: 2px solid var(--text);
  transform: rotate(42deg);
}

.checkbox input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.checkbox-label { font-size: 12px; }

/* ---------- Options row ---------- */

.options-row {
  display: flex;
  align-items: center;
  margin: 2px 0 12px;
}

/* ---------- Status bar ---------- */

.status-bar {
  display: flex;
  gap: 2px;
  padding: 2px;
  background-color: var(--face);
}

.status-bar-field {
  flex: 1 1 auto;
  min-width: 0;
  padding: 2px 7px;
  font-size: 11px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border: 1px solid var(--shadow);
  border-right-color: var(--highlight);
  border-bottom-color: var(--highlight);
}

.status-bar-field:last-child { flex: 0 0 auto; }

/* ---------- Shake (sign-in failure) ---------- */

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

.shake { animation: shake 0.4s ease-in-out; }

@media (prefers-reduced-motion: reduce) {
  .shake { animation: none; }
}

/* ---------- Small screens ---------- */

@media (max-width: 640px) {
  .desktop {
    padding: calc(16px + env(safe-area-inset-top)) 12px
             calc(16px + env(safe-area-inset-bottom));
  }

  .window { width: 100%; }

  .window-body { padding: 22px 18px 20px; }

  .brand { margin-bottom: 18px; }
  .brand-logo { width: 48px; height: 48px; }
  .brand-mark { font-size: 18px; }
}

/* ---------- Touch devices ---------- */

@media (pointer: coarse) {
  .field-input {
    min-height: 50px;
    font-size: 16px; /* blocks iOS zoom-on-focus */
  }

  .btn-secondary {
    min-height: 50px;
    font-size: 13px;
  }

  .btn-primary {
    min-height: 54px;
    font-size: 16px;
  }

  .checkbox { min-height: 48px; }
  .checkbox input[type="checkbox"] { width: 22px; height: 22px; }
  .checkbox input[type="checkbox"]:checked::after {
    left: 7px;
    top: 1px;
    width: 6px;
    height: 13px;
  }
  .checkbox-label { font-size: 13px; }

  .field-label { font-size: 13px; }
}