/* ==========================================================================
   FitNest — Custom Stylesheet & Design System
   Matches https://airo.ai/share/ejMyd3h3aGpodDpjNDA6RHRfSThFS19VR25U
   ========================================================================== */

:root {
  --primary: #16a34a;
  --primary-hover: #15803d;
  --primary-light: #dcfce7;
  --secondary: #15803d;
  --charcoal: #111827;
  --charcoal-card: #1f2937;
  --charcoal-dark: #0b0f19;
  --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  color: #1f2937;
  background-color: #ffffff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, .font-heading {
  font-family: var(--font-heading);
}

/* ─── WhatsApp Pulsing Ring Animation ─── */
@keyframes pulse-ring {
  0% {
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.6);
  }
  70% {
    box-shadow: 0 0 0 18px rgba(34, 197, 94, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0);
  }
}

.whatsapp-pulse {
  animation: pulse-ring 2.2s infinite ease-out;
}

/* ─── Floating WhatsApp Button ─── */
.floating-whatsapp {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background-color: #25d366;
  color: #ffffff;
  border-radius: 50%;
  box-shadow: 0 10px 25px -5px rgba(37, 211, 102, 0.5), 0 8px 10px -6px rgba(37, 211, 102, 0.4);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
}

.floating-whatsapp:hover {
  transform: scale(1.08) translateY(-2px);
  background-color: #22c35e;
}

/* Tooltip for floating WhatsApp */
.floating-whatsapp::before {
  content: "Chat with a Coach";
  position: absolute;
  right: 70px;
  background-color: #111827;
  color: #ffffff;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 9999px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transform: translateX(8px);
  transition: all 0.2s ease;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
}

.floating-whatsapp:hover::before {
  opacity: 1;
  transform: translateX(0);
}

/* ─── Navbar Transition ─── */
.header-scrolled {
  background-color: rgba(255, 255, 255, 0.98) !important;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.08);
  padding-top: 0.75rem !important;
  padding-bottom: 0.75rem !important;
}

.header-scrolled .nav-link {
  color: #374151 !important;
}

.header-scrolled .nav-link:hover {
  color: #16a34a !important;
}

.header-scrolled .nav-link.active {
  color: #16a34a !important;
}

.header-scrolled .mobile-menu-btn {
  color: #1f2937 !important;
}

.header-scrolled .logo-light {
  display: none !important;
}

.header-scrolled .logo-dark {
  display: block !important;
}

/* Default state: on hero overlay */
.nav-link {
  color: rgba(255, 255, 255, 0.9);
  transition: color 0.2s ease;
}

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

.nav-link.active {
  color: #4ade80;
}

/* ─── Card Hover & Image Zoom ─── */
.card-hover {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-hover:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.img-zoom {
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.group:hover .img-zoom {
  transform: scale(1.05);
}

/* ─── Interactive Modal ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}

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

.modal-content {
  background-color: #ffffff;
  border-radius: 1.25rem;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  transform: scale(0.95) translateY(10px);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active .modal-content {
  transform: scale(1) translateY(0);
}

/* ─── Form Elements ─── */
.form-input {
  width: 100%;
  padding: 0.875rem 1.125rem;
  border-radius: 0.75rem;
  border: 1px solid #e5e7eb;
  background-color: #ffffff;
  color: #111827;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
  border-color: #16a34a;
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.15);
}

/* ─── Custom Scrollbar ─── */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}