/* ============================================================
   ALVARO MILHO BOOKS — Header & Footer Styles
   ============================================================ */

/* ============================================================
   TEXTURE OVERLAY
   ============================================================ */
.am-texture-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    mix-blend-mode: multiply;
    opacity: 0.35;
    background-image: url("data:image/svg+xml,%3Csvg width='200' height='200' viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
}

/* ============================================================
   NAVBAR BASE
   ============================================================ */
.am-navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 24px 0;
    background-color: #fdfbf7;
    transition: background-color 0.4s ease, padding 0.4s ease, box-shadow 0.4s ease;
}

/* Scrolled state — applied via JS */
.am-navbar.is-scrolled {
    background-color: rgba(253, 251, 247, 0.93);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 12px 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.am-navbar__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

/* ── Logo ──────────────────────────────────────────────────── */
.am-navbar__logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}

.am-navbar__logo img {
    max-height: 48px;
    width: auto;
}

.am-navbar__logo-text {
    font-family: var(--font-cinzel);
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 0.22em;
    color: var(--color-dark);
    line-height: 1;
}

/* ── Desktop Menu ──────────────────────────────────────────── */
.am-navbar__desktop {
    display: flex;
    align-items: center;
    gap: 32px;
}

.am-navbar__menu {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.am-navbar__menu li a,
.am-navbar__menu a {
    font-family: var(--font-garamond);
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--color-dark);
    text-decoration: none;
    transition: color 0.2s ease;
}

.am-navbar__menu li a:hover,
.am-navbar__menu a:hover {
    color: var(--color-gold);
}

/* Buy Now CTA */
.am-navbar__cta {
    font-family: var(--font-cinzel);
    font-size: 13px;
    letter-spacing: 0.12em;
    color: var(--color-dark);
    border: 1px solid var(--color-dark);
    padding: 8px 22px;
    text-decoration: none;
    transition: background-color 0.3s ease, color 0.3s ease;
    white-space: nowrap;
}

.am-navbar__cta:hover {
    background-color: var(--color-dark);
    color: var(--color-gold);
}

/* ── Hamburger ─────────────────────────────────────────────── */
.am-navbar__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    width: 38px;
    height: 38px;
}

.am-navbar__hamburger-bar {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-dark);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform-origin: center;
}

/* Hamburger → X animation */
.am-navbar__hamburger[aria-expanded="true"] .am-navbar__hamburger-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.am-navbar__hamburger[aria-expanded="true"] .am-navbar__hamburger-bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.am-navbar__hamburger[aria-expanded="true"] .am-navbar__hamburger-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   MOBILE MENU
   ============================================================ */
.am-mobile-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-parchment);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.35s ease, opacity 0.3s ease;
}

.am-mobile-menu.is-open {
    max-height: 450px;
    opacity: 1;
}

.am-mobile-menu__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.am-mobile-menu__list li a,
.am-mobile-menu__list a {
    display: block;
    padding: 16px 40px;
    font-family: var(--font-garamond);
    font-size: 19px;
    color: var(--color-dark);
    text-decoration: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.am-mobile-menu__list li a:hover,
.am-mobile-menu__list a:hover {
    background-color: rgba(212, 175, 55, 0.08);
    color: var(--color-gold);
}

.am-mobile-menu__cta {
    display: block;
    padding: 16px 40px;
    font-family: var(--font-cinzel);
    font-size: 14px;
    letter-spacing: 0.12em;
    color: var(--color-dark);
    text-decoration: none;
    border-top: 1px solid rgba(212, 175, 55, 0.3);
    transition: color 0.2s ease;
}

.am-mobile-menu__cta:hover {
    color: var(--color-gold);
}

/* ============================================================
   CONTENT AREA — push below fixed nav
   ============================================================ */
.am-content {
    padding-top: 82px; /* matches navbar height so content isn't hidden */
    min-height: 60vh;
}

/* ============================================================
   FOOTER
   ============================================================ */
.am-footer {
    background-color: var(--color-darker);
    border-top: 1px solid var(--color-dark);
    padding: 36px 0;
}

.am-footer__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.am-footer__copy {
    font-family: var(--font-cinzel);
    font-size: 13px;
    color: #777;
    letter-spacing: 0.04em;
}

/* Footer nav */
.am-footer__nav { flex-shrink: 0; }

.am-footer__menu {
    display: flex;
    align-items: center;
    gap: 24px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.am-footer__menu li a,
.am-footer__menu a {
    font-family: var(--font-garamond);
    font-size: 15px;
    color: #777;
    text-decoration: none;
    transition: color 0.2s ease;
}

.am-footer__menu li a:hover,
.am-footer__menu a:hover {
    color: var(--color-gold);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .am-navbar__desktop { display: none; }
    .am-navbar__hamburger { display: flex; }

    .am-navbar__container { padding: 0 24px; }

    .am-navbar__logo-text { font-size: 14px; letter-spacing: 0.16em; }

    .am-footer__container {
        flex-direction: column;
        text-align: center;
        gap: 20px;
        padding: 0 24px;
    }

    .am-footer__menu { justify-content: center; flex-wrap: wrap; gap: 16px; }

    .am-content { padding-top: 70px; }
}

@media (max-width: 480px) {
    .am-navbar__logo-text { font-size: 12px; letter-spacing: 0.1em; }
    .am-mobile-menu__list li a,
    .am-mobile-menu__list a { padding: 14px 24px; }
}