/* =============================================
   Edison Heating & Cooling — Main Styles
   ============================================= */

/* --- Google Material Symbols --- */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* --- Service Card Overlay --- */
.service-card-overlay {
  background: linear-gradient(to bottom, rgba(0, 30, 64, 0.3), rgba(0, 30, 64, 0.85));
}

/* =============================================
   Scroll Reveal
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Stagger children --- */
.stagger > .reveal:nth-child(1) { transition-delay: 0s; }
.stagger > .reveal:nth-child(2) { transition-delay: 0.08s; }
.stagger > .reveal:nth-child(3) { transition-delay: 0.16s; }
.stagger > .reveal:nth-child(4) { transition-delay: 0.24s; }
.stagger > .reveal:nth-child(5) { transition-delay: 0.32s; }
.stagger > .reveal:nth-child(6) { transition-delay: 0.40s; }
.stagger > .reveal:nth-child(7) { transition-delay: 0.48s; }
.stagger > .reveal:nth-child(8) { transition-delay: 0.56s; }

/* =============================================
   Mobile Menu
   ============================================= */
.mobile-menu {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition:
    max-height 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.3s ease;
}

.mobile-menu.open {
  max-height: 400px;
  opacity: 1;
}

/* =============================================
   Stat Counter Animation
   ============================================= */
@keyframes countUp {
  from {
    opacity: 0;
    transform: scale(0.6);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.stat-number.visible {
  animation: countUp 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

/* =============================================
   Header
   ============================================= */
.header-scrolled {
  padding-top: 0.5rem !important;
  padding-bottom: 0.5rem !important;
  box-shadow: 0 4px 24px rgba(0, 27, 60, 0.12);
}

/* =============================================
   Tabs
   ============================================= */
.tab-btn {
  position: relative;
  transition: color 0.3s ease;
}

.tab-btn::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: #b6171e;
  transition:
    width 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    left 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.tab-btn.active::after {
  width: 100%;
  left: 0;
}

.tab-btn.active {
  color: #001e40;
}

/* --- Tab panels --- */
.tab-content {
  display: none;
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 0.4s ease,
    transform 0.4s ease;
}

.tab-content.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   Focus
   ============================================= */
button:focus-visible,
a:focus-visible {
  outline: 2px solid #b6171e;
  outline-offset: 2px;
}

/* =============================================
   Service Cards — hover effects
   ============================================= */
.service-card .card-title {
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.service-card:hover .card-title {
  transform: translateY(-8px);
}

.service-card .card-cta {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 0.3s ease 0.1s,
    transform 0.3s ease 0.1s;
}

.service-card:hover .card-cta {
  opacity: 1;
  transform: translateY(0);
}