/*
 * Login Page - Stylesheet
 * Developer Tools / Premium Tech Product Design
 * Adheres to brandbook specifications in docs/brandbook.md
 * Last Updated: 2026-01-30
 */

/* ========================================
   LOGIN CONTAINER (Charcoal, Centered)
   ======================================== */

.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-6);
  background-color: var(--color-bg-primary);
  position: relative;
  overflow: hidden;
}

/* Subtle grid pattern background */
.login-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(0, 217, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 217, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

/* ========================================
   LOGIN BOX (Sharp, Technical)
   ======================================== */

.login-box {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 0;
  padding: var(--spacing-12);
  box-shadow: 0 0 40px rgba(0, 217, 255, 0.1);
  animation: slideUp 0.4s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.login-logo {
  display: block;
  margin: 0 auto var(--spacing-10);
  max-width: 160px;
  height: auto;
}

/* ========================================
   LOGIN HEADER
   ======================================== */

.login-header {
  text-align: center;
  margin-bottom: var(--spacing-10);
}

.login-title {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.login-subtitle {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-body);
  line-height: var(--line-height-relaxed);
}

/* ========================================
   LOGIN FORM
   ======================================== */

.login-form {
  margin-bottom: var(--spacing-6);
}

/* Forgot password link */
.forgot-password {
  display: block;
  text-align: right;
  margin-top: calc(var(--spacing-2) * -1);
  margin-bottom: var(--spacing-6);
  font-size: var(--font-size-small);
  color: var(--color-accent-cyan);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.forgot-password:hover {
  color: var(--color-accent-cyan-dark);
}

/* Checkbox group (Remember me) */
.checkbox-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-6);
}

.checkbox-label {
  color: var(--color-text-secondary);
  font-size: var(--font-size-body);
  cursor: pointer;
  user-select: none;
}

/* ========================================
   LOGIN FOOTER
   ======================================== */

.login-footer {
  text-align: center;
  padding-top: var(--spacing-6);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-tertiary);
  font-size: var(--font-size-small);
}

.login-footer p {
  margin: 0;
  color: var(--color-text-tertiary);
}

.login-footer a {
  color: var(--color-accent-cyan);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.login-footer a:hover {
  color: var(--color-accent-cyan-dark);
}

/* ========================================
   RESPONSIVE ADJUSTMENTS
   ======================================== */

@media (max-width: 640px) {
  .login-container {
    padding: var(--spacing-4);
  }

  .login-box {
    padding: var(--spacing-8);
    max-width: 100%;
  }

  .login-logo {
    max-width: 140px;
    margin-bottom: var(--spacing-8);
  }

  .login-title {
    font-size: var(--font-size-h3);
  }

  .login-header {
    margin-bottom: var(--spacing-8);
  }
}