/* ========== BASE ========== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

::selection {
    background: #7B2D3B;
    color: #FDF6F5;
}

/* ========== NAV ========== */
#site-header {
    background: rgba(253, 248, 246, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(123, 45, 59, 0.08);
}

#site-header.scrolled {
    background: rgba(253, 248, 246, 0.95);
    box-shadow: 0 1px 20px rgba(123, 45, 59, 0.08);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: #7B2D3B;
    transition: all 0.25s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 60%;
}

/* ========== MOBILE MENU ========== */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

.mobile-link {
    opacity: 0;
    transform: translateY(12px);
    transition: all 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; }

/* ========== SCROLL REVEAL ========== */
.reveal-up {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* Stagger children */
.reveal-up.delay-1 { transition-delay: 0.1s; }
.reveal-up.delay-2 { transition-delay: 0.2s; }
.reveal-up.delay-3 { transition-delay: 0.3s; }

/* ========== FORM ========== */
select option[value=""][disabled] {
    color: #d4a8ad;
}

/* ========== FOCUS ========== */
:focus-visible {
    outline: 2px solid #7B2D3B;
    outline-offset: 2px;
}

/* ========== ACCESSIBILITY ========== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 640px) {
    html {
        scroll-padding-top: 72px;
    }

    #site-header {
        background: rgba(253, 248, 246, 0.95);
    }
}