/* === Base Styles === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
}

/* === Scroll Reveal Animations === */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.scroll-reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.scroll-reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
}

.scroll-reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.scroll-reveal-right.revealed {
    opacity: 1;
    transform: translateX(0);
}

/* === Staggered delays for grid items === */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* === Reduced motion === */
@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal,
    .scroll-reveal-left,
    .scroll-reveal-right {
        opacity: 0;
        transform: translateY(30px);
    }
    .scroll-reveal.revealed,
    .scroll-reveal-left.revealed,
    .scroll-reveal-right.revealed {
        opacity: 1;
        transform: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .scroll-reveal,
    .scroll-reveal-left,
    .scroll-reveal-right,
    .service-card,
    a,
    button {
        transition: none;
    }
    .scroll-reveal,
    .scroll-reveal-left,
    .scroll-reveal-right {
        opacity: 1;
        transform: none;
    }
}

/* === Navbar Transition === */
.navbar-scrolled {
    background: rgba(15, 23, 42, 0.95) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

/* === Service Card Hover === */
.service-card {
    will-change: transform;
}

/* === Mobile Menu === */
.mobile-menu-link {
    display: block;
}

/* === Smooth focus outlines === */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #2dd4bf;
    outline-offset: 2px;
    border-radius: 4px;
}

/* === Custom scrollbar === */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* === Selection color === */
::selection {
    background: #2dd4bf;
    color: #0f172a;
}