/* === Base & Reset === */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    min-height: 100vh;
}

::selection {
    background: #8fe3c4;
    color: #102a43;
}

/* === Navbar === */
#navbar {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 30px rgba(16, 42, 67, 0.08);
}

/* === Mobile Menu === */
#mobileMenu {
    animation: slideDown 0.3s ease forwards;
}

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

/* === Hero Floating Cards === */
.float-card-1 {
    animation: float1 4s ease-in-out infinite;
}

.float-card-2 {
    animation: float2 5s ease-in-out infinite;
}

.float-card-3 {
    animation: float3 4.5s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

@keyframes float2 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-16px); }
}

@keyframes float3 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* === Feature Cards === */
.feature-card {
    transform: translateY(0);
}

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

/* === Scroll Animations === */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
    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; }

/* === Service Cards === */
.service-card {
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

::-webkit-scrollbar-track {
    background: #f2fcf9;
}

::-webkit-scrollbar-thumb {
    background: #8fe3c4;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #4fd3ab;
}

/* === Button ripple effect === */
button, a {
    position: relative;
    overflow: hidden;
}

/* === Focus styles === */
:focus-visible {
    outline: 2px solid #4fd3ab;
    outline-offset: 2px;
}

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