/* ========================================
   Silvia's Nutrition — Custom Styles
   Classic & Elegant · Burgundy + Blush
   ======================================== */

/* ── Base & Typography ─────────────────── */
html {
    scroll-behavior: smooth;
}

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

::selection {
    background-color: #a12036;
    color: #fefdfb;
}

/* ── Navbar Transitions ────────────────── */
#navbar.scrolled {
    background-color: rgba(254, 253, 251, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(74, 55, 40, 0.08);
}

.nav-text-color {
    color: #362719;
}

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

.menu-line:nth-child(1) {
    transform-origin: center;
}
.menu-line:nth-child(2) {
    transform-origin: center;
}
.menu-line:nth-child(3) {
    transform-origin: center;
}

#mobile-menu-btn.active .menu-line:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
}
#mobile-menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
#mobile-menu-btn.active .menu-line:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
    width: 1.5rem;
}

/* ── Scroll Reveal (progressive enh.) ──── */
@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.revealed {
        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; }
    .reveal-delay-4 { transition-delay: 0.4s; }
}

/* ── Subtle image shimmer on load ──────── */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

img {
    image-rendering: auto;
}

/* ── Focus styles for accessibility ────── */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #a12036;
    outline-offset: 3px;
    border-radius: 2px;
}

/* ── Smooth hover for cards ────────────── */
.group:hover .group-hover\:scale-105 {
    transform: scale(1.05);
}

/* ── Print styles ──────────────────────── */
@media print {
    #navbar,
    #mobile-menu,
    .reveal {
        display: none !important;
    }

    body {
        color: #1e150e;
        background: white;
    }

    section {
        page-break-inside: avoid;
    }
}