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

html { scroll-behavior: smooth; }

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

/* ── Navigation Active State ── */
.nav-link.active {
    color: #152d78;
    background: #eef5ff;
}

/* ── Scroll Reveal (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1), transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
    }
    .reveal-left {
        opacity: 0;
        transform: translateX(-32px);
        transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1), transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
    }
    .reveal-right {
        opacity: 0;
        transform: translateX(32px);
        transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1), transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
    }
    .reveal-up.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        opacity: 1;
        transform: none;
    }
}

/* ── FAQ Toggle ── */
.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.22, 1, 0.36, 1), padding 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.faq-item.open .faq-content {
    max-height: 300px;
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
}

/* ── Mobile Menu ── */
.mobile-menu {
    transform: translateY(-8px);
    opacity: 0;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
}

/* ── Header Scroll State ── */
#site-header.scrolled {
    box-shadow: 0 1px 20px rgba(12, 26, 68, 0.08);
}

/* ── Back to Top ── */
#back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

/* ── Animations ── */
@keyframes bounce-slow {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, 8px); }
}

.animate-bounce-slow {
    animation: bounce-slow 2.5s ease-in-out infinite;
}

/* ── Form Select Arrow ── */
select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%239ca3af' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.25em 1.25em;
    padding-right: 2.5rem;
}

/* ── Selection Color ── */
::selection {
    background: #2db370;
    color: #fff;
}