/* ============================================
   Chat Widget - Full Screen Calculator
   ============================================ */

/* ---- Trigger Button (Bottom Right) ---- */
.chat-widget-trigger {
  position: fixed;
  bottom: var(--spacing-6);
  right: var(--spacing-6);
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-4) var(--spacing-6);
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  box-shadow: var(--shadow-xl), 0 8px 32px rgba(194, 103, 74, 0.4);
  transition: all var(--transition-base);
  z-index: var(--z-fixed);
  font-family: var(--font-body);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
}

.chat-widget-trigger:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow-2xl), 0 12px 40px rgba(194, 103, 74, 0.5);
  color: var(--color-white);
}

.chat-widget-trigger svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.chat-widget-trigger__label {
  font-size: var(--font-size-sm);
  white-space: nowrap;
}

/* Hide label on small screens */
@media (max-width: 600px) {
  .chat-widget-trigger {
    padding: var(--spacing-4);
    border-radius: var(--radius-full);
    bottom: var(--spacing-4);
    right: var(--spacing-4);
  }

  .chat-widget-trigger__label {
    display: none;
  }
}

/* ---- Full Screen Overlay ---- */
.chat-widget-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--color-bg);
  z-index: var(--z-modal);
  display: none;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 300ms ease, transform 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

.chat-widget-overlay.is-open {
  display: flex;
  flex-direction: column;
  opacity: 1;
  transform: translateY(0);
}

/* ---- Chat Widget Container ---- */
.chat-widget {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
  background-color: var(--color-bg);
}

/* ---- Header ---- */
.chat-widget__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4) var(--spacing-6);
  background-color: var(--color-primary);
  color: var(--color-white);
  flex-shrink: 0;
}

.chat-widget__header-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.chat-widget__avatar {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.chat-widget__avatar svg {
  width: 24px;
  height: 24px;
}

.chat-widget__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin: 0;
  line-height: 1.3;
}

.chat-widget__subtitle {
  font-size: var(--font-size-sm);
  opacity: 0.9;
  margin: 0;
}

.chat-widget__close {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--color-white);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
  flex-shrink: 0;
}

.chat-widget__close:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.chat-widget__close svg {
  width: 24px;
  height: 24px;
}

/* ---- Messages Area ---- */
.chat-widget__messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-6);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  scroll-behavior: smooth;
}

/* ---- Message Bubbles ---- */
.chat-message {
  max-width: 85%;
  padding: var(--spacing-4) var(--spacing-5);
  border-radius: var(--radius-xl);
  font-size: var(--font-size-base);
  line-height: 1.6;
  animation: messageSlideIn 300ms ease;
  word-wrap: break-word;
  white-space: pre-line;
}

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chat-message--user {
  align-self: flex-end;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-bottom-right-radius: var(--radius-sm);
}

.chat-message--assistant {
  align-self: flex-start;
  background-color: var(--color-surface);
  color: var(--color-text);
  border-bottom-left-radius: var(--radius-sm);
}

/* ---- Estimate Card ---- */
.chat-estimate {
  align-self: flex-start;
  max-width: 90%;
  background-color: var(--color-white);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-6);
  margin-top: var(--spacing-2);
  animation: messageSlideIn 300ms ease;
}

.chat-estimate__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-3);
}

.chat-estimate__price {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--spacing-2);
}

.chat-estimate__details {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.chat-estimate__details strong {
  color: var(--color-text);
}

/* ---- Typing Indicator ---- */
.chat-widget__typing {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: var(--spacing-4) var(--spacing-6);
  align-self: flex-start;
}

.chat-widget__typing-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-text-muted);
  border-radius: 50%;
  animation: typingBounce 1.4s ease-in-out infinite;
}

.chat-widget__typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.chat-widget__typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typingBounce {
  0%, 60%, 100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-8px);
  }
}

/* ---- Input Footer ---- */
.chat-widget__footer {
  padding: var(--spacing-4) var(--spacing-6);
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.chat-widget__input-form {
  display: flex;
  gap: var(--spacing-3);
  align-items: center;
}

.chat-widget__input {
  flex: 1;
  padding: var(--spacing-4) var(--spacing-5);
  font-size: var(--font-size-base);
  font-family: var(--font-body);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  background-color: var(--color-white);
}

.chat-widget__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(194, 103, 74, 0.15);
}

.chat-widget__input::placeholder {
  color: var(--color-text-muted);
}

.chat-widget__send {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.chat-widget__send:hover:not(:disabled) {
  background-color: var(--color-primary-dark);
  transform: scale(1.05);
}

.chat-widget__send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.chat-widget__send svg {
  width: 20px;
  height: 20px;
}

/* ---- Error Message ---- */
.chat-message--error {
  align-self: center;
  background-color: var(--color-error-light, #fef2f2);
  color: var(--color-error, #ef4444);
  border: 1px solid var(--color-error, #ef4444);
  font-size: var(--font-size-sm);
  text-align: center;
}

/* ---- Mobile Optimizations ---- */
@media (max-width: 768px) {
  .chat-widget__header {
    padding: var(--spacing-3) var(--spacing-4);
  }

  .chat-widget__avatar {
    width: 40px;
    height: 40px;
  }

  .chat-widget__avatar svg {
    width: 20px;
    height: 20px;
  }

  .chat-widget__title {
    font-size: var(--font-size-base);
  }

  .chat-widget__messages {
    padding: var(--spacing-4);
  }

  .chat-widget__footer {
    padding: var(--spacing-3) var(--spacing-4);
  }

  .chat-message {
    max-width: 90%;
    padding: var(--spacing-3) var(--spacing-4);
  }

  .chat-estimate {
    max-width: 95%;
    padding: var(--spacing-4);
  }

  .chat-estimate__price {
    font-size: var(--font-size-2xl);
  }

  .chat-widget__input {
    padding: var(--spacing-3) var(--spacing-4);
  }

  .chat-widget__send {
    width: 48px;
    height: 48px;
  }
}

/* Safe area for iOS notch */
@supports (padding-top: env(safe-area-inset-top)) {
  .chat-widget__header {
    padding-top: calc(var(--spacing-4) + env(safe-area-inset-top));
  }
}

@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .chat-widget__footer {
    padding-bottom: calc(var(--spacing-4) + env(safe-area-inset-bottom));
  }
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .chat-widget-overlay {
    transition: opacity 150ms ease;
    transform: none;
  }

  .chat-widget-overlay.is-open {
    transform: none;
  }

  .chat-message,
  .chat-estimate {
    animation: none;
  }

  .chat-widget__typing-dot {
    animation: none;
  }
}

/* ---- Contact Form ---- */
.chat-contact-form {
  align-self: flex-start;
  max-width: 90%;
  background-color: var(--color-white);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-6);
  margin-top: var(--spacing-2);
  animation: messageSlideIn 300ms ease;
}

.chat-contact-form__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-4);
}

.chat-contact-form__form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.chat-contact-form__input {
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--font-size-sm);
  font-family: var(--font-body);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  background-color: var(--color-white);
  width: 100%;
  box-sizing: border-box;
}

.chat-contact-form__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(194, 103, 74, 0.15);
}

.chat-contact-form__input::placeholder {
  color: var(--color-text-muted);
}

.chat-contact-form__submit {
  padding: var(--spacing-3) var(--spacing-5);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-body);
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-top: var(--spacing-2);
}

.chat-contact-form__submit:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
}

.chat-contact-form__success {
  font-size: var(--font-size-sm);
  color: var(--color-success, #22c55e);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-4);
  text-align: center;
}

/* Mobile optimizations for contact form */
@media (max-width: 768px) {
  .chat-contact-form {
    max-width: 95%;
    padding: var(--spacing-4);
  }
}