/* ============================================================
   KargoKit — Auth screens (login / register)
   Builds on the design tokens defined in main.css.
   ============================================================ */

.auth {
  min-height: 100vh;
  background: var(--surface-muted);
}

.auth__inner {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
}

/* ---------- Brand panel ---------- */
.auth-brand {
  position: relative;
  overflow: hidden;
  color: var(--text-inverse);
  isolation: isolate;
}
.auth-brand__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1100px 520px at 18% 8%, rgba(255, 133, 64, 0.35), transparent 60%),
    radial-gradient(900px 600px at 92% 100%, rgba(255, 106, 26, 0.28), transparent 55%),
    linear-gradient(155deg, #1a2233 0%, var(--neutral-900) 55%, #0a0f1d 100%);
}
.auth-brand__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(80% 80% at 50% 30%, #000 40%, transparent 100%);
}
.auth-brand__content {
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-12);
  padding: var(--space-12) var(--space-12) var(--space-10);
  max-width: 540px;
}
.auth-brand__logo {
  font-size: var(--text-2xl);
}
.auth-brand__title {
  font-size: var(--text-4xl);
  font-weight: var(--weight-extra);
  line-height: 1.15;
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-4);
}
.auth-brand__desc {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: rgba(255, 255, 255, 0.74);
  margin-bottom: var(--space-7);
}
.auth-brand__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.auth-brand__list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  color: rgba(255, 255, 255, 0.92);
}
.auth-brand__check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: var(--radius-full);
  background: var(--brand-500);
  color: var(--text-inverse);
}
.auth-brand__foot {
  display: flex;
  gap: var(--space-8);
  padding-top: var(--space-7);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.auth-brand__stat strong {
  display: block;
  font-size: var(--text-2xl);
  font-weight: var(--weight-extra);
  letter-spacing: var(--tracking-tight);
}
.auth-brand__stat span {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.6);
}

/* ---------- Form panel ---------- */
.auth__panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-10) var(--space-6);
  background: var(--surface);
}
.auth__panel-inner {
  width: 100%;
  max-width: 420px;
}
.auth__logo {
  display: inline-flex;
  font-size: var(--text-xl);
  font-weight: var(--weight-extra);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-8);
}

.auth-form__head {
  margin-bottom: var(--space-6);
}
.auth-form__pill {
  margin-bottom: var(--space-4);
}
.auth-form__title {
  font-size: var(--text-3xl);
  font-weight: var(--weight-extra);
  letter-spacing: var(--tracking-tight);
  line-height: 1.15;
  margin-bottom: var(--space-2);
}
.auth-form__sub {
  font-size: var(--text-md);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}
.auth-form__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* ---------- Fields ---------- */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.field--inline {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}
.field__label {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
}
.field__labelrow {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
}
.field__hint-link {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--text-brand);
}
.field__hint-link:hover {
  text-decoration: underline;
}
.field .input {
  width: 100%;
}
.field__hint {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}
.field__error {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--danger-fg);
}

/* Password input with toggle */
.field__password {
  position: relative;
}
.field__password .input {
  padding-right: 44px;
}
.field__toggle {
  position: absolute;
  top: 50%;
  right: var(--space-2);
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  transition: color var(--duration-base) var(--ease-out), background-color var(--duration-base) var(--ease-out);
}
.field__toggle:hover {
  color: var(--text-secondary);
  background: var(--surface-muted);
}
.field__toggle[aria-pressed="true"] {
  color: var(--brand-600);
}

/* Checkbox */
.checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}
.checkbox--start {
  align-items: flex-start;
  line-height: var(--leading-snug);
}
.checkbox input {
  appearance: none;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin: 0;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xs);
  background: var(--surface);
  cursor: pointer;
  transition: background-color var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
}
.checkbox--start input {
  margin-top: 2px;
}
.checkbox input:checked {
  background: var(--brand-500);
  border-color: var(--brand-500);
}
.checkbox input:checked::after {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  background: center / 11px no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
}
.checkbox input:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}
.checkbox a {
  color: var(--text-brand);
  font-weight: var(--weight-semibold);
}
.checkbox a:hover {
  text-decoration: underline;
}

/* Strength meter */
.strength {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.strength[hidden] {
  display: none;
}
.strength__track {
  flex: 1;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--surface-subtle);
  overflow: hidden;
}
.strength__bar {
  display: block;
  height: 100%;
  width: 0;
  border-radius: var(--radius-full);
  background: var(--danger-fg);
  transition: width var(--duration-base) var(--ease-out), background-color var(--duration-base) var(--ease-out);
}
.strength__label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--text-tertiary);
  min-width: 56px;
  text-align: right;
}
.strength[data-level="1"] .strength__bar { width: 30%; background: var(--danger-fg); }
.strength[data-level="2"] .strength__bar { width: 60%; background: #d97706; }
.strength[data-level="3"] .strength__bar { width: 80%; background: #2563eb; }
.strength[data-level="4"] .strength__bar { width: 100%; background: var(--success-fg); }

/* Alert */
.auth-alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  margin-bottom: var(--space-5);
}
.auth-alert--error {
  background: #fef2f2;
  color: var(--danger-fg);
  border: 1px solid #fecaca;
}
.auth-alert .icon {
  margin-top: 1px;
  flex-shrink: 0;
}

/* Switch + trust */
.auth-form__switch {
  margin-top: var(--space-6);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-align: center;
}
.auth-form__switch a {
  color: var(--text-brand);
  font-weight: var(--weight-bold);
}
.auth-form__switch a:hover {
  text-decoration: underline;
}
.auth-trust {
  display: flex;
  justify-content: center;
  gap: var(--space-5);
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border-subtle);
}
.auth-trust li {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--text-tertiary);
}
.auth-trust .icon {
  color: var(--brand-500);
}

/* Honeypot — visually removed, kept for bots */
.auth-hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .auth__inner {
    grid-template-columns: 1fr;
  }
  .auth-brand {
    display: none;
  }
  .auth__panel {
    padding: var(--space-8) var(--space-5);
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .field__toggle,
  .strength__bar,
  .checkbox input {
    transition: none;
  }
}