/**
 * contact.css – Stylesheet cho trang Liên Hệ (P4-006)
 * Kế thừa các design tokens từ main.css
 */

/* ==========================================================================
   A. Layout & Breadcrumb
   ========================================================================== */
.contact-page-wrapper {
  background-color: var(--color-white);
  padding-bottom: var(--space-16);
}

.contact-breadcrumb-section {
  background-color: var(--color-surface);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--font-size-sm);
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  color: var(--color-muted);
}

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: var(--space-2);
  color: var(--color-border);
}

.breadcrumb__link {
  color: var(--color-ink-light);
  transition: color var(--transition-fast);
}

.breadcrumb__link:hover {
  color: var(--color-primary);
}

.breadcrumb__item--active {
  color: var(--color-primary);
  font-weight: 500;
}

/* ==========================================================================
   B. Main Grid Section
   ========================================================================== */
.contact-main-section {
  padding: var(--space-12) 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-12);
  align-items: start;
}

@media (max-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
}

/* ==========================================================================
   C. Contact Info Column
   ========================================================================== */
.contact-header {
  margin-bottom: var(--space-8);
}

.contact-tagline {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
}

.contact-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
  line-height: 1.2;
}

.contact-desc {
  font-size: var(--font-size-base);
  color: var(--color-ink-light);
  line-height: 1.6;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact-info-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.contact-info-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: var(--color-primary-50);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  flex-shrink: 0;
  transition: transform var(--transition-base), background-color var(--transition-base);
}

.contact-info-icon--zalo {
  background-color: #e1f0ff;
  color: #0068ff;
}

.zalo-text-icon {
  font-weight: 800;
  font-size: 20px;
  font-family: Arial, sans-serif;
}

.contact-info-item:hover .contact-info-icon {
  transform: translateY(-2px);
}

.contact-info-content h3 {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-ink);
  margin: 0 0 var(--space-1) 0;
}

.contact-info-content p {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-ink-light);
  line-height: 1.5;
}

.contact-link {
  color: var(--color-ink);
  font-weight: 600;
  border-bottom: 1px dotted var(--color-border);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.contact-link:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ==========================================================================
   D. Lead Form Column
   ========================================================================== */
.contact-form-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
  transition: box-shadow var(--transition-base);
}

.contact-form-card:hover {
  box-shadow: var(--shadow-xl);
}

.form-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: var(--space-2);
}

.form-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-bottom: var(--space-6);
  line-height: 1.5;
}

.form-group {
  margin-bottom: var(--space-5);
  position: relative;
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-ink-light);
  margin-bottom: var(--space-2);
}

.form-label .required {
  color: var(--color-error);
}

.form-control,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  color: var(--color-ink);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  appearance: none;
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%234a4a5a' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  background-size: 16px;
  padding-right: var(--space-10);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

/* Validation styling */
.form-control.is-invalid,
.form-select.is-invalid {
  border-color: var(--color-error);
  background-color: #fffafb;
}

.form-control.is-invalid:focus,
.form-select.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.field-error {
  display: none;
  color: var(--color-error);
  font-size: var(--font-size-xs);
  margin-top: var(--space-1);
  font-weight: 500;
}

.form-control.is-invalid + .field-error,
.form-select.is-invalid + .field-error {
  display: block;
}

/* Submit & Loading states */
.btn-submit-contact {
  width: 100%;
  margin-top: var(--space-4);
  position: relative;
  overflow: hidden;
  font-size: var(--font-size-base);
}

.btn-spinner {
  display: none;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--color-white);
  animation: spin 0.8s linear infinite;
  position: absolute;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* States represented by parent class .is-loading, .is-success, .is-error */
.contact-form-card.is-loading .btn-text {
  visibility: hidden;
}

.contact-form-card.is-loading .btn-spinner {
  display: block;
}

.contact-form-card.is-loading .form-control,
.contact-form-card.is-loading .form-select,
.contact-form-card.is-loading button {
  pointer-events: none;
  opacity: 0.8;
}

/* Form status notifications */
.form-status-message {
  display: none;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-6);
  line-height: 1.4;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.error-message {
  background-color: #fef2f2;
  border: 1px solid #fee2e2;
  color: var(--color-error);
}

.success-message {
  background-color: #f0fdf4;
  border: 1px solid #dcfce7;
  color: var(--color-success);
}

.contact-form-card.is-error .error-message {
  display: flex;
}

.contact-form-card.is-success .success-message {
  display: flex;
}

.contact-form-card.is-success form > *:not(.success-message) {
  display: none;
}

/* ==========================================================================
   E. Google Map Section
   ========================================================================== */
.contact-map-section {
  padding-bottom: var(--space-12);
}

.map-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
}

.map-header {
  margin-bottom: var(--space-6);
}

.map-header h2 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: var(--space-1);
}

.map-header p {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin: 0;
}

.map-container {
  position: relative;
  width: 100%;
  padding-bottom: 40%; /* Tỉ lệ màn hình rộng */
  min-height: 320px;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

@media (max-width: 768px) {
  .map-container {
    padding-bottom: 60%;
  }
}

@media (max-width: 480px) {
  .map-container {
    padding-bottom: 75%;
  }
}

.map-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Click-to-interact overlay to prevent scroll trap */
.map-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(26, 26, 46, 0.4);
  backdrop-filter: blur(1px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  transition: opacity var(--transition-base), visibility var(--transition-base);
  cursor: pointer;
  z-index: 10;
}

.map-overlay-inner {
  background-color: rgba(26, 26, 46, 0.85);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 600;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transform: scale(1);
  transition: transform var(--transition-base);
}

.map-overlay:hover .map-overlay-inner {
  transform: scale(1.05);
}

.map-container.is-active .map-overlay {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

.map-footer {
  margin-top: var(--space-4);
  display: flex;
  justify-content: flex-end;
}

.btn-open-maps {
  color: var(--color-ink-light);
  border-color: var(--color-border);
}

.btn-open-maps:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ==========================================================================
   F. Floating Mobile CTA
   ========================================================================== */
.floating-mobile-cta {
  display: none;
}

@media (max-width: 767px) {
  .contact-page-wrapper {
    /* Đảm bảo CTA mobile không che footer hoặc phần cuối của trang liên hệ */
    padding-bottom: calc(var(--space-16) + 76px);
  }

  .floating-mobile-cta {
    display: block;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.08);
    padding: var(--space-3) var(--space-4);
    z-index: 999; /* Dưới z-index của mobile drawer */
    animation: slideUp 0.3s ease;
  }

  .floating-cta-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
    max-width: 480px;
    margin: 0 auto;
  }

  .cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    height: 46px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: var(--font-size-sm);
    color: var(--color-white);
    transition: transform var(--transition-fast);
  }

  .cta-btn:active {
    transform: scale(0.98);
  }

  .cta-btn--phone {
    background-color: var(--color-primary);
  }

  .cta-btn--phone:active {
    background-color: var(--color-primary-dark);
  }

  .cta-btn--zalo {
    background-color: #0068ff;
  }

  .cta-btn--zalo:active {
    background-color: #0056cc;
  }

  .zalo-bold-text {
    background-color: var(--color-white);
    color: #0068ff;
    font-size: 10px;
    font-weight: 800;
    padding: 1px 4px;
    border-radius: 4px;
    margin-right: -2px;
  }
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}