/* ========================================
   layout.css — Header, menú móvil, footer, rails
   ======================================== */

/* ---------- Header frosted glass ---------- */
header {
    position: fixed;
    inset: 0 0 auto 0;
    height: var(--nav-h);
    z-index: var(--z-header);
    background: rgba(251, 248, 241, 0.72);
    -webkit-backdrop-filter: blur(18px) saturate(1.6);
    backdrop-filter: blur(18px) saturate(1.6);
    border-bottom: 1px solid rgba(58, 95, 66, 0.08);
    transition: background var(--transition-normal), box-shadow var(--transition-normal);
}

header.is-scrolled {
    background: rgba(251, 248, 241, 0.88);
    box-shadow: var(--shadow-sm);
}

@supports not (backdrop-filter: blur(1px)) {
    header { background: rgba(251, 248, 241, 0.97); }
}

.navbar {
    width: min(var(--container), 100% - var(--gutter) * 2);
    margin-inline: auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
}

.logo-img {
    width: 44px;
    height: 44px;
    object-fit: contain;
    transition: transform var(--transition-normal);
}

header.is-scrolled .logo-img { transform: scale(0.88); }

#logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
    white-space: nowrap;
}

.logo-line1 {
    font-family: var(--heading-font);
    font-weight: 700;
    font-size: 1.02rem;
    color: var(--primary-dark);
}

.logo-line2 {
    font-size: 0.7rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--secondary-color);
    font-weight: 700;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: clamp(0.25rem, 1.5vw, 1rem);
}

.nav-link-item {
    position: relative;
    padding: 0.5rem 0.75rem;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-color);
    border-radius: var(--radius-full);
    transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link-item::after {
    content: "";
    position: absolute;
    left: 0.75rem;
    right: 0.75rem;
    bottom: 0.15rem;
    height: 2px;
    border-radius: 2px;
    background: var(--secondary-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.nav-link-item:hover { color: var(--primary-color); }
.nav-link-item:hover::after,
.nav-link-item.active::after { transform: scaleX(1); }
.nav-link-item.active { color: var(--primary-color); }

.nav-link-birreta { color: var(--birreta-primary); }
.nav-link-birreta::after { background: var(--birreta-primary); }
.nav-link-birreta:hover { color: var(--birreta-accent); }

/* ---------- Toggle hamburguesa ---------- */
.mobile-menu-toggle {
    display: none;
    position: relative;
    z-index: calc(var(--z-mobile-menu) + 1);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.mobile-menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: var(--primary-dark);
    transition: transform var(--transition-normal), opacity var(--transition-normal), background var(--transition-normal);
}

body.menu-open .mobile-menu-toggle span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
body.menu-open .mobile-menu-toggle span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

/* ---------- Menú móvil a pantalla completa ---------- */
@media (max-width: 860px) {
    .mobile-menu-toggle { display: flex; }

    .nav-menu {
        position: fixed;
        inset: 0;
        z-index: var(--z-mobile-menu);
        flex-direction: column;
        justify-content: center;
        gap: 0.5rem;
        background: linear-gradient(160deg, #2A4A32 0%, #1E3A26 70%, #17301F 100%);
        padding: var(--nav-h) var(--gutter) calc(env(safe-area-inset-bottom, 0px) + 2rem);
        /* en horizontal (poca altura) los enlaces pueden no caber: que haga scroll */
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.35s var(--animation-smooth), visibility 0.35s;
    }

    body.menu-open .nav-menu {
        opacity: 1;
        visibility: visible;
    }

    .nav-menu li {
        opacity: 0;
        transform: translateY(22px);
        transition: opacity 0.45s var(--animation-smooth), transform 0.45s var(--animation-spring);
    }

    body.menu-open .nav-menu li { opacity: 1; transform: none; }
    body.menu-open .nav-menu li:nth-child(1) { transition-delay: 60ms; }
    body.menu-open .nav-menu li:nth-child(2) { transition-delay: 120ms; }
    body.menu-open .nav-menu li:nth-child(3) { transition-delay: 180ms; }
    body.menu-open .nav-menu li:nth-child(4) { transition-delay: 240ms; }
    body.menu-open .nav-menu li:nth-child(5) { transition-delay: 300ms; }

    .nav-link-item {
        font-family: var(--heading-font);
        font-size: clamp(1.8rem, 8vw, 2.6rem);
        color: var(--bg-color);
        padding: 0.35rem 0.75rem;
    }

    .nav-link-item:hover, .nav-link-item.active { color: var(--secondary-light); }
    .nav-link-item::after { display: none; }
    .nav-link-birreta { color: var(--birreta-accent); }

    body.menu-open { overflow: hidden; }
    body.menu-open .mobile-menu-toggle span { background: var(--bg-color); }
}

/* Móvil en horizontal / pantallas bajas: menú alineado arriba y fuente reducida
   para que los 5 enlaces quepan y sean alcanzables (con scroll de reserva). */
@media (max-width: 860px) and (max-height: 520px) {
    .nav-menu { justify-content: flex-start; gap: 0.15rem; padding-top: calc(var(--nav-h) + 0.5rem); }
    .nav-link-item { font-size: 1.5rem; padding: 0.25rem 0.75rem; }
}

/* ---------- Rails horizontales con snap ---------- */
.rail-wrap { position: relative; }

.rail {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: var(--card-w);
    gap: var(--spacing-md);
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: max(calc((100vw - var(--container)) / 2), var(--gutter));
    padding: 10px max(calc((100vw - var(--container)) / 2), var(--gutter)) 28px;
    scrollbar-width: none;
    -webkit-mask-image: linear-gradient(to right, transparent, #000 3%, #000 97%, transparent);
    mask-image: linear-gradient(to right, transparent, #000 3%, #000 97%, transparent);
}

.rail::-webkit-scrollbar { display: none; }
.rail > * { scroll-snap-align: start; }
.rail-lg { grid-auto-columns: var(--card-w-lg); }

.rail-btn {
    display: none;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
    color: var(--primary-dark);
    place-items: center;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
}

.rail-btn:hover { transform: translateY(-50%) scale(1.08); box-shadow: var(--shadow-lg); }
.rail-btn:active { transform: translateY(-50%) scale(0.95); }
.rail-btn[disabled] { opacity: 0.3; pointer-events: none; }
.rail-prev { left: max(calc((100vw - var(--container)) / 2 - 24px), 8px); }
.rail-next { right: max(calc((100vw - var(--container)) / 2 - 24px), 8px); }

@media (hover: hover) and (pointer: fine) {
    .rail-btn { display: grid; }
}

/* ---------- Hero genérico de página ---------- */
.page-hero {
    padding: calc(var(--space-section) * 0.9) 0 calc(var(--space-section) * 0.55);
    text-align: center;
}

.page-hero .page-title {
    font-size: var(--text-hero);
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
}

.page-hero .lead { margin-inline: auto; }

/* ---------- Footer ---------- */
footer {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #22301F 100%);
    color: var(--accent-color);
    padding: var(--spacing-2xl) 0 0;
    margin-top: var(--space-section);
}

.footer-content {
    width: min(var(--container), 100% - var(--gutter) * 2);
    margin-inline: auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.footer-brand .logo-line1 { color: var(--bg-color); font-size: 1.3rem; }
.footer-brand .logo-line2 { color: var(--secondary-light); }

.footer-eslogan {
    font-family: var(--heading-font);
    font-style: italic;
    color: var(--secondary-light);
    margin-top: 0.75rem;
    font-size: 1.05rem;
}

.footer-section h3 {
    color: var(--bg-color);
    font-size: 1.05rem;
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    min-height: 44px;
    color: var(--accent-color);
    padding: 0.35rem 0;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.footer-section a:hover {
    color: var(--secondary-light);
    transform: translateX(3px);
}

.footer-section ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-section ul li { margin-bottom: 0.25rem; }

.footer-bottom {
    border-top: 1px solid rgba(251, 248, 241, 0.12);
    padding: var(--spacing-md) var(--gutter) calc(var(--spacing-md) + env(safe-area-inset-bottom, 0px));
    text-align: center;
    font-size: 0.85rem;
    color: rgba(240, 234, 214, 0.7);
}

/* ---------- View Transitions ---------- */
@media (prefers-reduced-motion: no-preference) {
    ::view-transition-old(root),
    ::view-transition-new(root) {
        animation-duration: 0.32s;
    }

    ::view-transition-group(product-hero) {
        animation-duration: 0.5s;
        animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    }
}

@media (max-width: 480px) {
    .logo-line1 { font-size: 0.9rem; }
    .logo-line2 { font-size: 0.62rem; }
}