/* ============================================================
   login.css — Login page specific styles
   ============================================================ */

/* ------------------------------------------------------------
   Page layout — full-height centered card
   ------------------------------------------------------------ */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6) var(--space-4);
  position: relative;
  overflow: hidden;
  background-color: var(--color-void);
}

/* CSS noise / grid texture background */
.login-page::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center center;
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
}

/* Subtle radial vignette over grid */
.login-page::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(
    ellipse 80% 70% at 50% 50%,
    transparent 30%,
    rgba(15, 15, 15, 0.85) 100%
  );
  pointer-events: none;
  z-index: 0;
}

/* ------------------------------------------------------------
   Login card
   ------------------------------------------------------------ */
.login-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: clamp(360px, 92vw, 460px);
  background: var(--color-base);
  border: var(--border);
  border-top: 2px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: clamp(var(--space-6), 3vw, var(--space-8));
}

/* ------------------------------------------------------------
   Logo / brand area
   ------------------------------------------------------------ */
.login-brand {
  text-align: center;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: var(--border);
}

.login-brand__wordmark {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-white);
  line-height: 1.2;
  display: block;
  margin-bottom: var(--space-1);
}

.login-brand__wordmark span {
  color: var(--color-accent);
}

.login-brand__sub {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-muted);
}

/* Accent crosshair decoration above wordmark */
.login-brand__mark {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.login-brand__mark-line {
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.login-brand__mark-icon {
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.login-brand__mark-icon svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-accent);
  fill: none;
}

/* ------------------------------------------------------------
   Login form heading
   ------------------------------------------------------------ */
.login-heading {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-muted);
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.login-heading::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

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

.login-form .field-group {
  gap: var(--space-2);
}

/* ------------------------------------------------------------
   Error message
   ------------------------------------------------------------ */
.login-error {
  display: none;
  align-items: flex-start;
  gap: var(--space-2);
  background: rgba(232, 84, 30, 0.08);
  border: 1px solid rgba(232, 84, 30, 0.35);
  border-left: 3px solid var(--color-danger);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-danger);
  letter-spacing: 0.04em;
}

.login-error.is-visible {
  display: flex;
}

.login-error__icon {
  flex-shrink: 0;
  margin-top: 1px;
  font-size: 0.75rem;
}

/* ------------------------------------------------------------
   Submit button
   ------------------------------------------------------------ */
.login-submit {
  margin-top: var(--space-2);
  position: relative;
}

.login-submit .btn--primary {
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
}

/* Loading state on button */
.btn--loading {
  pointer-events: none;
  opacity: 0.7;
}

/* ------------------------------------------------------------
   Footer note
   ------------------------------------------------------------ */
.login-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: var(--border);
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-muted);
  letter-spacing: 0.05em;
  line-height: 1.6;
}

.login-footer strong {
  color: var(--color-secondary);
  font-weight: 500;
}

/* ------------------------------------------------------------
   Responsive
   ------------------------------------------------------------ */
@media (max-width: 480px) {
  .login-card {
    padding: var(--space-6) var(--space-5);
    border-top-width: 2px;
  }

  .login-brand {
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-5);
  }

  .login-brand__wordmark {
    font-size: var(--text-md);
    letter-spacing: 0.1em;
  }

  .login-brand__mark-icon {
    width: 28px;
    height: 28px;
  }
}