/* ===== Custom Styles for G & A Heating & Cooling Co. ===== */

/* Base & Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Floating Card Animations ===== */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

@keyframes float-delayed {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

.floating-card-1 {
    animation: float 4s ease-in-out infinite;
}

.floating-card-2 {
    animation: float-delayed 5s ease-in-out infinite;
}

.floating-card-3 {
    animation: float 4.5s ease-in-out infinite;
    animation-delay: 1s;
}

/* ===== Service Card Hover Effects ===== */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #14b8a6, #1e4d8c);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover::after {
    transform: scaleX(1);
}

/* ===== Navbar Scroll Effect ===== */
.nav-scrolled {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.nav-scrolled .font-heading {
    color: #0c233e !important;
}

/* ===== Intersection Observer Animations ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ===== Mobile Menu ===== */
.mobile-link {
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f0fdf9;
}

.mobile-link:last-child {
    border-bottom: none;
}

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

::-webkit-scrollbar-track {
    background: #f0fdf9;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #14b8a6, #1e4d8c);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #0d9488, #183f72);
}

/* ===== Selection Color ===== */
::selection {
    background: #5eead4;
    color: #061524;
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 768px) {
    .floating-card-1,
    .floating-card-2,
    .floating-card-3 {
        display: none;
    }
}

/* ===== Focus Visible for Accessibility ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid #14b8a6;
    outline-offset: 2px;
    border-radius: 0.5rem;
}

/* ===== Print Styles ===== */
@media print {
    nav, #contact, footer, .floating-card-1, .floating-card-2, .floating-card-3 {
        display: none;
    }
    
    body {
        color: #000;
        background: #fff;
    }
}