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

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

body {
    overflow-x: hidden;
}

/* ── Buttons ─────────────────────────────────────────── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: #059669;
    color: #ffffff;
    font-weight: 700;
    border-radius: 1rem;
    padding: 0.75rem 1.75rem;
    text-decoration: none;
    transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
}

.btn-primary:hover {
    background: #047857;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(5, 150, 105, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: transparent;
    color: #065f46;
    font-weight: 700;
    border-radius: 1rem;
    padding: 0.75rem 1.75rem;
    text-decoration: none;
    border: 2px solid #a7f3d0;
    transition: background 0.2s, border-color 0.2s, transform 0.15s;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
}

.btn-secondary:hover {
    background: #d1fae5;
    border-color: #6ee7b7;
    transform: translateY(-2px);
}

/* ── Navbar ──────────────────────────────────────────── */
#navbar {
    background: rgba(254, 253, 248, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(16, 185, 129, 0.1);
}

#navbar.scrolled {
    background: rgba(254, 253, 248, 0.95);
    box-shadow: 0 4px 20px rgba(5, 74, 54, 0.08);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #059669;
    border-radius: 1px;
    transition: width 0.2s;
}

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

/* ── Beer Cards ──────────────────────────────────────── */
.beer-card {
    transition: transform 0.3s, box-shadow 0.3s;
}

.beer-card:hover {
    transform: translateY(-6px);
}

/* ── Mobile Menu ─────────────────────────────────────── */
#mobile-menu {
    max-height: 0;
}

#mobile-menu.open {
    max-height: 320px;
}

.mobile-nav-link {
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(16, 185, 129, 0.1);
}

.mobile-nav-link:last-child {
    border-bottom: none;
}

/* ── Scroll Reveal (progressive enhancement) ─────────── */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    }

    .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; }
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 768px) {
    .font-serif {
        font-size: clamp(2rem, 8vw, 3rem);
    }
}