/* =============================================================================
   EMAIL SIGNUP COMPONENT - Enhanced v2.0
   Modern, productivity-focused email signup forms
   Supports: default, inline, sticky, popup, compact-inline variations
   ============================================================================= */

/* ===== BASE STYLES ===== */
.houtini-email-signup-section {
  margin: var(--houtini-spacing-xl) 0;
  width: 100%;
}

.email-signup-container {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--houtini-spacing-lg);
  background: var(--houtini-surface-elevated);
  border-radius: var(--houtini-radius-lg);
  border: 1px solid var(--houtini-border-subtle);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: var(--houtini-transition-base);
}

.email-signup-container:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  border-color: var(--houtini-border-default);
}

/* ===== HEADER ===== */
.email-signup-header {
  text-align: center;
  margin-bottom: var(--houtini-spacing-md);
}

.email-signup-title {
  font-size: var(--houtini-font-size-2xl);
  font-weight: var(--houtini-font-weight-bold);
  color: var(--houtini-text-primary);
  margin-bottom: var(--houtini-spacing-xs);
  line-height: var(--houtini-line-height-tight);
}

.email-signup-description {
  font-size: var(--houtini-font-size-base);
  color: var(--houtini-text-secondary);
  line-height: var(--houtini-line-height-relaxed);
  margin: 0;
}

/* ===== FORM CONTAINER ===== */
.houtini-email-signup-form {
  width: 100%;
}

.email-input-wrapper {
  margin-bottom: var(--houtini-spacing-sm);
}

.email-input-group {
  display: flex;
  gap: var(--houtini-spacing-xs);
  background: var(--houtini-surface-primary);
  border: 2px solid var(--houtini-border-subtle);
  border-radius: var(--houtini-radius-md);
  padding: 6px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.email-input-group:focus-within {
  border-color: var(--houtini-primary);
  box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.1);
  transform: translateY(-1px);
}

/* ===== INPUT FIELD ===== */
.email-input {
  flex: 1;
  padding: var(--houtini-spacing-sm) var(--houtini-spacing-md);
  border: none;
  background: transparent;
  font-size: var(--houtini-font-size-base);
  color: var(--houtini-text-primary);
  outline: none;
  border-radius: var(--houtini-radius-sm);
  font-family: var(--houtini-font-family);
}

.email-input::placeholder {
  color: var(--houtini-text-tertiary);
  opacity: 0.8;
}

.email-input:focus {
  color: var(--houtini-text-primary);
}

/* ===== SUBMIT BUTTON ===== */
.email-submit-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--houtini-spacing-xs);
  padding: var(--houtini-spacing-sm) var(--houtini-spacing-lg);
  background: linear-gradient(135deg, var(--houtini-secondary) 0%, #00B377 100%);
  color: white;
  border: none;
  border-radius: var(--houtini-radius-sm);
  font-size: var(--houtini-font-size-base);
  font-weight: var(--houtini-font-weight-semibold);
  font-family: var(--houtini-font-family);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 204, 136, 0.25);
}

.email-submit-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.email-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 204, 136, 0.35);
}

.email-submit-btn:hover::before {
  transform: translateX(100%);
}

.email-submit-btn:hover i {
  transform: translateX(3px);
}

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

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

.email-submit-btn i {
  font-size: 0.9em;
  transition: transform 0.3s ease;
}

/* ===== LOADING STATE ===== */
.email-submit-btn.loading .btn-text {
  opacity: 0;
}

.email-submit-btn.loading i {
  display: none;
}

.email-submit-btn.loading::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===== SUCCESS STATE ===== */
.email-submit-btn.success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.email-submit-btn.success .btn-text::after {
  content: ' ✓';
}

/* ===== FORM MESSAGES ===== */
.form-message {
  margin-top: var(--houtini-spacing-sm);
  padding: var(--houtini-spacing-sm) var(--houtini-spacing-md);
  border-radius: var(--houtini-radius-sm);
  font-size: var(--houtini-font-size-sm);
  font-weight: var(--houtini-font-weight-medium);
  text-align: center;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
  max-height: 0;
  overflow: hidden;
}

.form-message.show {
  opacity: 1;
  transform: translateY(0);
  max-height: 100px;
}

.form-message.success {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(5, 150, 105, 0.1));
  border: 2px solid var(--houtini-success);
  color: #059669;
}

.form-message.error {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(220, 38, 38, 0.1));
  border: 2px solid var(--houtini-danger);
  color: #DC2626;
}

/* ===== PRIVACY NOTE ===== */
.signup-privacy {
  font-size: var(--houtini-font-size-sm);
  color: var(--houtini-text-tertiary);
  text-align: center;
  margin: var(--houtini-spacing-xs) 0 0;
  line-height: var(--houtini-line-height-relaxed);
}

.signup-privacy i {
  margin-right: var(--houtini-spacing-2xs);
  opacity: 0.7;
}

/* ===== HONEYPOT (SPAM PROTECTION) ===== */
.hp-field,
.honeypot-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

/* =============================================================================
   COMPACT INLINE VARIATION - Maximum space efficiency
   Target: <250px height on desktop, stack on mobile
   ============================================================================= */

.houtini-email-signup-section.email-signup-compact-inline {
  margin: var(--houtini-spacing-md) 0;
  padding: 0;
}

.email-signup-container-inline {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--houtini-spacing-md) var(--houtini-spacing-lg);
  background: var(--houtini-surface-elevated);
  border-radius: var(--houtini-radius-md);
  border: 1px solid var(--houtini-border-subtle);
  position: relative;
}

/* Value Proposition - Single line, compact */
.email-value-prop {
  font-size: var(--houtini-font-size-base);
  color: var(--houtini-text-secondary);
  margin-bottom: var(--houtini-spacing-sm);
  text-align: center;
  font-weight: 500;
}

/* Inline Form Row - Desktop horizontal layout */
.form-row-inline {
  display: flex;
  gap: var(--houtini-spacing-sm);
  margin-bottom: var(--houtini-spacing-xs);
}

.form-row-inline .email-input-wrapper {
  flex: 1;
  min-width: 0;
  margin-bottom: 0;
}

.email-signup-compact-inline .email-input {
  height: 48px;
  padding: 0 var(--houtini-spacing-md);
  font-size: var(--houtini-font-size-base);
  border: 1px solid var(--houtini-border-default);
  border-radius: var(--houtini-radius-sm);
  background: var(--houtini-surface-base);
  color: var(--houtini-text-primary);
  transition: var(--houtini-transition-base);
  width: 100%;
}

.email-signup-compact-inline .email-input:focus {
  outline: none;
  border-color: var(--houtini-primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.email-signup-compact-inline .email-submit-btn {
  height: 48px;
  padding: 0 var(--houtini-spacing-lg);
  background: linear-gradient(135deg, #0066FF 0%, #00CCFF 100%);
  color: white;
  border: none;
  border-radius: var(--houtini-radius-sm);
  font-weight: 600;
  font-size: var(--houtini-font-size-base);
  cursor: pointer;
  transition: var(--houtini-transition-base);
  display: flex;
  align-items: center;
  gap: var(--houtini-spacing-xs);
  white-space: nowrap;
}

.email-signup-compact-inline .email-submit-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
}

/* Privacy Notice - Ultra compact */
.privacy-notice {
  font-size: var(--houtini-font-size-sm);
  color: var(--houtini-text-tertiary);
  text-align: center;
  margin: 0;
}

.privacy-notice i {
  margin-right: 4px;
  opacity: 0.7;
}

/* Form Message - Positioned absolutely to not affect height */
.email-signup-compact-inline .form-message {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -30px;
  font-size: var(--houtini-font-size-sm);
  text-align: center;
  padding: var(--houtini-spacing-xs);
  border-radius: var(--houtini-radius-sm);
  opacity: 0;
  transform: translateY(-10px);
  transition: var(--houtini-transition-base);
  pointer-events: none;
  margin-top: 0;
  max-height: none;
  overflow: visible;
}

.email-signup-compact-inline .form-message.show {
  opacity: 1;
  transform: translateY(0);
}

.email-signup-compact-inline .form-message.success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--houtini-success);
}

.email-signup-compact-inline .form-message.error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--houtini-error);
}

/* ===== VARIATION: INLINE ===== */
.email-signup-inline .email-signup-container {
  padding: var(--houtini-spacing-md);
}

.email-signup-inline .email-signup-title {
  font-size: var(--houtini-font-size-xl);
}

.email-signup-inline .email-signup-description {
  font-size: var(--houtini-font-size-sm);
}

/* ===== VARIATION: STICKY BAR ===== */
.email-signup-sticky {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  margin: 0;
  z-index: 999;
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.email-signup-sticky.visible {
  transform: translateY(0);
}

.email-signup-sticky .email-signup-container {
  max-width: 100%;
  border-radius: 0;
  border: none;
  border-top: 2px solid var(--houtini-primary);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(10px);
  background: var(--houtini-surface-overlay);
}

.email-signup-sticky .email-signup-header {
  margin-bottom: var(--houtini-spacing-sm);
}

.email-signup-sticky .email-signup-title {
  font-size: var(--houtini-font-size-lg);
  margin-bottom: 0;
}

/* ===== VARIATION: POPUP/MODAL ===== */
.email-signup-popup {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  padding: var(--houtini-spacing-lg);
}

.email-signup-popup.visible {
  display: flex;
}

.email-signup-popup .email-signup-container {
  max-width: 500px;
  position: relative;
  animation: popupSlideIn 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

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

.email-signup-popup .popup-close {
  position: absolute;
  top: var(--houtini-spacing-md);
  right: var(--houtini-spacing-md);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: var(--houtini-radius-sm);
  cursor: pointer;
  color: var(--houtini-text-secondary);
  transition: all 0.2s ease;
  font-size: var(--houtini-font-size-xl);
  line-height: 1;
}

.email-signup-popup .popup-close:hover {
  background: var(--houtini-surface-secondary);
  color: var(--houtini-text-primary);
}

/* =============================================================================
   RESPONSIVE BEHAVIOR - Stack on mobile
   ============================================================================= */

@media (max-width: 768px) {
  .houtini-email-signup-section {
    margin: var(--houtini-spacing-lg) 0;
  }

  .email-signup-container {
    padding: var(--houtini-spacing-md);
  }

  .email-signup-title {
    font-size: var(--houtini-font-size-xl);
  }

  .email-signup-description {
    font-size: var(--houtini-font-size-sm);
  }

  .email-input-group {
    flex-direction: column;
  }

  .email-submit-btn {
    width: 100%;
    justify-content: center;
  }

  .email-signup-sticky .email-signup-container {
    padding: var(--houtini-spacing-sm);
  }

  .email-signup-sticky .email-input-group {
    flex-direction: row;
  }
  
  /* Compact inline responsive */
  .form-row-inline {
    flex-direction: column;
    gap: var(--houtini-spacing-sm);
  }
  
  .email-signup-compact-inline .email-submit-btn {
    width: 100%;
    justify-content: center;
  }
}

/* ===== DARK MODE SUPPORT ===== */
@media (prefers-color-scheme: dark) {
  body:not([data-theme="light"]) .email-signup-container {
    background: var(--houtini-surface-elevated-dark);
    border-color: var(--houtini-border-subtle-dark);
  }

  body:not([data-theme="light"]) .email-input-group {
    background: var(--houtini-surface-primary-dark);
    border-color: var(--houtini-border-subtle-dark);
  }

  body:not([data-theme="light"]) .email-input-group:focus-within {
    border-color: var(--houtini-primary);
    box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.2);
  }
  
  /* Compact inline dark mode */
  body:not([data-theme="light"]) .email-signup-container-inline {
    background: var(--houtini-surface-elevated-dark);
    border-color: var(--houtini-border-subtle-dark);
  }

  body:not([data-theme="light"]) .email-signup-compact-inline .email-input {
    background: var(--houtini-surface-base-dark);
    border-color: var(--houtini-border-default-dark);
    color: var(--houtini-text-primary-dark);
  }

  body:not([data-theme="light"]) .email-signup-compact-inline .email-input:focus {
    border-color: var(--houtini-primary);
    box-shadow: 0 0 0 3px rgba(0, 204, 255, 0.1);
  }
}

body[data-theme="dark"] .email-signup-container {
  background: var(--houtini-surface-elevated-dark);
  border-color: var(--houtini-border-subtle-dark);
}

body[data-theme="dark"] .email-input-group {
  background: var(--houtini-surface-primary-dark);
  border-color: var(--houtini-border-subtle-dark);
}

body[data-theme="dark"] .email-input-group:focus-within {
  border-color: var(--houtini-primary);
  box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.2);
}

/* Compact inline dark mode explicit */
body[data-theme="dark"] .email-signup-container-inline {
  background: var(--houtini-surface-elevated-dark);
  border-color: var(--houtini-border-subtle-dark);
}

body[data-theme="dark"] .email-signup-compact-inline .email-input {
  background: var(--houtini-surface-base-dark);
  border-color: var(--houtini-border-default-dark);
  color: var(--houtini-text-primary-dark);
}

body[data-theme="dark"] .email-signup-compact-inline .email-input:focus {
  border-color: var(--houtini-primary);
  box-shadow: 0 0 0 3px rgba(0, 204, 255, 0.1);
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  .houtini-email-signup-section *,
  .houtini-email-signup-section *::before,
  .houtini-email-signup-section *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* Focus visible for keyboard navigation */
.email-input:focus-visible,
.email-submit-btn:focus-visible {
  outline: 2px solid var(--houtini-primary);
  outline-offset: 2px;
}