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

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #1a1d23;
}
::-webkit-scrollbar-thumb {
    background: #374151;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #4b5563;
}

/* Selection */
::selection {
    background: rgba(249, 117, 131, 0.3);
    color: #fff;
}

/* Service Cards */
.service-card {
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                border-color 0.4s ease,
                box-shadow 0.4s ease;
}

.service-card:hover {
    box-shadow: 0 20px 60px -20px rgba(249, 117, 131, 0.15);
}

/* Navbar transition */
.nav-scrolled {
    background: rgba(26, 29, 35, 0.95) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* Mobile menu animation */
.menu-line {
    transition: transform 0.3s ease, opacity 0.3s ease, width 0.3s ease;
}

#menu-btn.active .menu-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
#menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
}
#menu-btn.active .menu-line:nth-child(3) {
    width: 24px;
    transform: translateY(-6px) rotate(-45deg);
}

/* Fade-in animations (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .fade-up {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
}

@media (prefers-reduced-motion: no-preference) {
    .fade-up {
        opacity: 0;
        transform: translateY(30px);
    }
}

/* Form focus styles */
input:focus,
textarea:focus {
    outline: none;
}

/* Image hover */
img {
    display: block;
    max-width: 100%;
}

/* Smooth image loading */
img {
    transition: opacity 0.3s ease;
}
img[loading="lazy"] {
    opacity: 0;
}
img.loaded {
    opacity: 1;
}