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

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

body {
    margin: 0;
    overflow-x: hidden;
}

::selection {
    background: #C9A84C;
    color: #0A1F3F;
}

/* ── Navigation ── */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #C9A84C;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(10, 31, 63, 0.08);
}

#navbar.scrolled .nav-logo {
    color: #0A1F3F;
}

#navbar.scrolled .nav-link {
    color: rgba(10, 31, 63, 0.7);
}

/* ── Mobile Menu ── */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu.open .mobile-link {
    animation: fadeUp 0.4s ease forwards;
    opacity: 0;
}

#mobile-menu.open .mobile-link:nth-child(1) { animation-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { animation-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { animation-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { animation-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { animation-delay: 0.25s; }

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Reveal Animations ── */
.reveal-up {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-fade {
    opacity: 0;
    transform: scale(0.97);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-up.visible,
.reveal-fade.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* ── Service Cards ── */
.service-card {
    position: relative;
    transition: background 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
}

.service-card:hover {
    box-shadow: 0 20px 60px rgba(10, 31, 63, 0.15);
}

/* ── Form Styles ── */
select option {
    background: #fff;
    color: #0A1F3F;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #f5f5f0;
}
::-webkit-scrollbar-thumb {
    background: #C9A84C;
    border-radius: 3px;
}

/* ── Responsive ── */
@media (max-width: 767px) {
    .font-serif {
        line-height: 1.15;
    }
}