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

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

body {
    overflow-x: hidden;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    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);
}

/* ===== Navbar Scroll State ===== */
nav.scrolled {
    background: rgba(250, 250, 250, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

/* ===== Mobile Menu ===== */
.mobile-menu-open {
    opacity: 1 !important;
    pointer-events: auto !important;
}

body.menu-open {
    overflow: hidden;
}

/* ===== Service Grid Lines ===== */
/* The gap-px on the grid creates the thin line effect via bg-light-gray */

/* ===== Custom Selection ===== */
::selection {
    background: #FF6B4A;
    color: white;
}

/* ===== Focus Styles ===== */
input:focus, textarea:focus, button:focus {
    outline: none;
}

/* ===== Smooth Image Loading ===== */
img {
    display: block;
    max-width: 100%;
}

/* ===== Subtle Hover Transitions ===== */
a, button {
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ===== Button Ripple-like Scale ===== */
button, a {
    will-change: transform;
}

button:active, a:active {
    transform: scale(0.98);
}

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

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

::-webkit-scrollbar-thumb {
    background: #D0D0D0;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #FF6B4A;
}