/* BASE */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
}

/* NAV */
#nav {
    transition: background-color 0.5s ease, backdrop-filter 0.5s ease;
}

#nav.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.nav-link {
    color: rgba(15, 17, 20, 0.85) !important;
}

#nav.scrolled .nav-link {
    color: rgba(15, 17, 20, 0.65) !important;
}

/* MOBILE MENU */
#mobileMenu {
    transition: opacity 0.5s ease, pointer-events 0.5s ease;
}

#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}

.mobile-link {
    transition: color 0.3s ease;
}

.mobile-link:hover {
    color: #C45D3E;
}

/* FORM */
input::placeholder,
textarea::placeholder {
    color: #c4c6cb;
}

input:focus,
textarea:focus {
    border-color: #C45D3E !important;
}

/* SCROLL REVEAL — below-fold only, progressive enhancement */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    .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; }
}

/* SCROLLBAR */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #f6f6f7;
}

::-webkit-scrollbar-thumb {
    background: #c4c6cb;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #9fa3aa;
}