/* ==========================================================================
   DR. K PHYSIOTHERAPY — COMPONENTS (components.css)
   ========================================================================== */

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: height var(--transition-base), background-color var(--transition-base), box-shadow var(--transition-base);
  display: flex;
  align-items: center;
}

.site-header.scrolled {
  height: var(--header-height-scrolled);
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text-main);
}

.brand-symbol {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #0d9488 0%, #0f766e 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.25);
  flex-shrink: 0;
  overflow: hidden;
  border: 2px solid rgba(13, 148, 136, 0.2);
}

.brand-symbol img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: inherit;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-accent);
  line-height: 1.1;
}

.brand-tag {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

/* Nav Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-main);
  position: relative;
  padding: var(--space-2) 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-base);
  border-radius: 2px;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Mobile Hamburger Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  color: var(--color-text-main);
  transition: background-color var(--transition-fast);
}

.nav-toggle:hover {
  background-color: var(--color-surface-subtle);
}

.hamburger-box {
  width: 24px;
  height: 18px;
  position: relative;
  display: inline-block;
}

.hamburger-line {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: currentColor;
  border-radius: 2px;
  transition: transform var(--transition-base), top var(--transition-base), opacity var(--transition-base);
}

.hamburger-line:nth-child(1) { top: 0; }
.hamburger-line:nth-child(2) { top: 8px; }
.hamburger-line:nth-child(3) { top: 16px; }

.nav-toggle.open .hamburger-line:nth-child(1) {
  top: 8px;
  transform: rotate(45deg);
}
.nav-toggle.open .hamburger-line:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open .hamburger-line:nth-child(3) {
  top: 8px;
  transform: rotate(-45deg);
}

/* Mobile Navigation Overlay */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.mobile-nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(85vw, 360px);
  height: 100%;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-xl);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: var(--space-8) var(--space-6);
  padding-bottom: calc(var(--space-8) + env(safe-area-inset-bottom));
  transition: right var(--transition-slow);
  overflow-y: auto;
}

.mobile-drawer.active {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-6);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.mobile-nav-link {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text-main);
  padding: var(--space-2) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-surface-subtle);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--color-primary);
}

.mobile-drawer-footer {
  margin-top: auto;
  padding-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* --------------------------------------------------------------------------
   Buttons & Interactive Elements
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1;
  padding: 14px 26px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-base);
  user-select: none;
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(13, 148, 136, 0.28);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(13, 148, 136, 0.35);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-accent);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--color-surface-subtle);
  border-color: var(--color-text-subtle);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.btn-accent {
  background-color: var(--color-accent);
  color: #ffffff;
}

.btn-accent:hover {
  background-color: #020617;
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary-dark);
  border: 1.5px solid var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary-hover);
}

.btn-instagram {
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  color: #ffffff !important;
  border: none;
}

.btn-instagram:hover {
  opacity: 0.92;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(220, 39, 67, 0.3);
}

.btn-whatsapp {
  background-color: #25d366;
  color: #ffffff !important;
}

.btn-whatsapp:hover {
  background-color: #20ba5a;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(37, 211, 102, 0.3);
}

.btn-sm {
  padding: 10px 18px;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 18px 32px;
  font-size: 1.08rem;
  border-radius: var(--radius-lg);
}

.btn-block {
  width: 100%;
}

/* --------------------------------------------------------------------------
   Cards System
   -------------------------------------------------------------------------- */
.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(13, 148, 136, 0.3);
}

.card-tinted {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

.card-clinical {
  border-top: 4px solid var(--color-primary);
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}

.card-title {
  margin-bottom: var(--space-3);
  font-size: 1.35rem;
}

.card-text {
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   FAQ Accordion
   -------------------------------------------------------------------------- */
.accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.accordion-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.accordion-item.active {
  border-color: rgba(13, 148, 136, 0.4);
  box-shadow: var(--shadow-md);
}

.accordion-trigger {
  width: 100%;
  text-align: left;
  padding: var(--space-5) var(--space-6);
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 600;
  color: var(--color-text-main);
  transition: color var(--transition-fast);
}

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

.accordion-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-surface-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-base), background-color var(--transition-base), color var(--transition-base);
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
  background-color: var(--color-primary);
  color: #ffffff;
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base), padding var(--transition-base);
}

.accordion-content-inner {
  padding: 0 var(--space-6) var(--space-6) var(--space-6);
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Forms & Inputs
   -------------------------------------------------------------------------- */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: var(--space-2);
  color: var(--color-text-main);
}

.form-control {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  color: var(--color-text-main);
  font-size: 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
  outline: none;
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: 0.88rem;
  color: var(--color-text-muted);
  cursor: pointer;
  line-height: 1.5;
}

.form-checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form-status {
  margin-top: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  display: none;
}

.form-status.success {
  display: block;
  background-color: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
}

.form-status.error {
  display: block;
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

/* --------------------------------------------------------------------------
   Contact Page & Form Grids (Fully Responsive Mobile-First)
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: var(--space-10);
  align-items: start;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.services-detailed-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

@media (max-width: 960px) {
  .contact-grid {
    grid-template-columns: 1fr !important;
    gap: var(--space-8);
  }

  .comparison-grid {
    grid-template-columns: 1fr !important;
    gap: var(--space-6);
  }

  .services-detailed-grid {
    grid-template-columns: 1fr !important;
    gap: var(--space-6);
  }
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr !important;
    gap: var(--space-2);
  }
}

/* --------------------------------------------------------------------------
   Mobile Sticky Bottom Action Bar (iOS & Android)
   -------------------------------------------------------------------------- */
.mobile-action-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 16px rgba(15, 23, 42, 0.08);
  padding: 10px 16px;
  padding-bottom: calc(10px + env(safe-area-inset-bottom));
  z-index: 990;
}

.mobile-action-bar-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: #0b1329;
  color: #94a3b8;
  padding-top: var(--space-20);
  padding-bottom: calc(var(--space-12) + var(--mobile-bar-height));
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.footer-brand p {
  color: #94a3b8;
  margin-top: var(--space-4);
  max-width: 320px;
  font-size: 0.95rem;
}

.footer-title {
  color: #ffffff;
  font-size: 1.05rem;
  margin-bottom: var(--space-5);
  font-family: var(--font-heading);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  color: #94a3b8;
  font-size: 0.92rem;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: #ffffff;
}

.footer-location-box {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-size: 0.88rem;
  line-height: 1.5;
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: 0.88rem;
}

.footer-legal-links {
  display: flex;
  gap: var(--space-6);
}

/* =========================================================================
   Blog Pagination
   ========================================================================= */
.pagination-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: var(--space-10);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  padding: 0 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: #ffffff;
  color: var(--color-text-main);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.page-btn:hover:not(:disabled):not(.active) {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  transform: translateY(-1px);
}

.page-btn.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(13, 148, 136, 0.3);
  cursor: default;
}

.page-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  background-color: #f8fafc;
}

/* --------------------------------------------------------------------------
   Flexbox & Layout Utilities
   -------------------------------------------------------------------------- */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }