/* Authentication System Styles */
.auth-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(16, 17, 34, 0.95),
    rgba(30, 31, 58, 0.95)
  );
  backdrop-filter: blur(15px);
  z-index: 20000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: all 0.3s ease;
}

/* Note: do not set container sizing/position here to avoid overriding
   per-page centering layouts in login/signup. */

@keyframes authSlideIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(30px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.auth-header {
  padding: 32px 32px 24px;
  text-align: center;
  background: var(--bg-tertiary, #111827);
  border-bottom: 1px solid var(--border-primary, #374151);
}

.auth-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
}

.auth-logo .brand-icon {
  font-size: 32px;
}

.auth-logo .brand-text {
  font-size: 24px;
  font-weight: 700;
  background: linear-gradient(
    135deg,
    var(--accent-primary, #4f46e5),
    var(--accent-secondary, #06b6d4)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-logo .brand-version {
  background: var(--accent-primary, #4f46e5);
  color: white;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.auth-header h2 {
  margin: 0 0 8px;
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary, #f9fafb);
}

.auth-header p {
  margin: 0;
  color: var(--text-secondary, #9ca3af);
  font-size: 14px;
}

.auth-form {
  padding: 32px;
}

.auth-field {
  margin-bottom: 20px;
}

.auth-field label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-primary, #f9fafb);
  font-size: 14px;
}

.auth-field input {
  width: 100%;
  padding: 16px;
  background: var(--bg-quaternary, #0f172a);
  border: 2px solid var(--border-primary, #374151);
  border-radius: 12px;
  color: var(--text-primary, #f9fafb);
  font-size: 16px;
  transition: all 0.3s ease;
  box-sizing: border-box;
}

.auth-field input:focus {
  outline: none;
  border-color: var(--accent-primary, #4f46e5);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
  background: var(--bg-tertiary, #111827);
}

.auth-field input.error {
  border-color: var(--error, #ef4444);
  animation: authShake 0.5s ease-in-out;
}

@keyframes authShake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px);
  }
  75% {
    transform: translateX(5px);
  }
}

.auth-field input::placeholder {
  color: var(--text-tertiary, #6b7280);
}

.auth-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--error, #ef4444);
  border-radius: 8px;
  padding: 12px 16px;
  margin: 16px 0;
  color: var(--error, #ef4444);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.auth-error::before {
  content: "⚠️";
}

.auth-submit {
  width: 100%;
  padding: 16px;
  background: linear-gradient(
    135deg,
    var(--accent-primary, #4f46e5),
    var(--accent-secondary, #06b6d4)
  );
  border: none;
  border-radius: 12px;
  color: white;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.auth-submit:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(79, 70, 229, 0.3);
}

.auth-submit:active {
  transform: translateY(0);
}

.auth-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.auth-submit-loading {
  display: flex;
  align-items: center;
  gap: 8px;
}

.auth-submit .loading-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-left: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.auth-footer {
  padding: 24px 32px 32px;
  text-align: center;
  background: var(--bg-quaternary, #0f172a);
}

.auth-footer p {
  margin: 0 0 16px;
  color: var(--text-secondary, #9ca3af);
  font-size: 14px;
}

.auth-features {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.auth-features span {
  font-size: 12px;
  color: var(--text-tertiary, #6b7280);
  background: var(--bg-tertiary, #111827);
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--border-secondary, #4b5563);
}

/* Theme adaptations */
/* Cyberpunk theme */
[data-theme="cyberpunk"] .auth-container {
  border-color: #ff0080;
  box-shadow: 0 0 20px rgba(255, 0, 128, 0.3);
}

[data-theme="cyberpunk"] .auth-submit {
  background: linear-gradient(45deg, #ff0080, #ff4da6);
  box-shadow: 0 0 15px rgba(255, 0, 128, 0.4);
}

[data-theme="cyberpunk"] .auth-field input:focus {
  border-color: #00ff98;
  box-shadow: 0 0 0 4px rgba(0, 255, 152, 0.1);
}

/* Ocean theme */
[data-theme="ocean"] .auth-submit {
  background: linear-gradient(45deg, #00bcd4, #26c6da);
}

[data-theme="ocean"] .auth-field input:focus {
  border-color: #00bcd4;
  box-shadow: 0 0 0 4px rgba(0, 188, 212, 0.1);
}

/* Sunset theme */
[data-theme="sunset"] .auth-submit {
  background: linear-gradient(45deg, #ff6b35, #f7931e);
}

[data-theme="sunset"] .auth-field input:focus {
  border-color: #ff6b35;
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1);
}

/* Mobile responsiveness */
@media (max-width: 480px) {
  .auth-container {
    width: 95%;
    margin: 16px;
  }

  .auth-header,
  .auth-form,
  .auth-footer {
    padding: 24px;
  }

  .auth-field input {
    padding: 14px;
    font-size: 16px; /* Prevents zoom on iOS */
  }

  .auth-features {
    flex-direction: column;
    gap: 8px;
  }

  .auth-features span {
    display: block;
  }
}