/* ── Base & Reset ── */
*, *::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;
}

::selection {
    background: #1a5c44;
    color: #faf9f6;
}

/* ── Scroll Reveal (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
    .service-card,
    #about .relative,
    #about .space-y-5,
    #patients .bg-white,
    .service-card {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }

    .service-card.revealed,
    #about .relative.revealed,
    #about .space-y-5.revealed,
    #patients .bg-white.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    #about .space-y-5 > *:nth-child(1) { transition-delay: 0.05s; }
    #about .space-y-5 > *:nth-child(2) { transition-delay: 0.1s; }
    #about .space-y-5 > *:nth-child(3) { transition-delay: 0.15s; }
}

/* ── Navbar Transition ── */
#navbar.scrolled {
    background: rgba(250, 249, 246, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(26, 92, 68, 0.08);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: #1a5c44;
    transition: width 0.3s ease;
}

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

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

.mobile-menu-open #bar1 {
    transform: translateY(6px) rotate(45deg);
}

.mobile-menu-open #bar2 {
    opacity: 0;
}

.mobile-menu-open #bar3 {
    transform: translateY(-6px) rotate(-45deg);
    width: 1.25rem;
}

.mobile-link {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

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

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

/* ── Form Focus Styles ── */
input:focus,
select:focus,
textarea:focus {
    outline: none;
}

/* ── Utility ── */
@media (max-width: 767px) {
    html {
        scroll-padding-top: 80px;
    }
}