/* ============================================================
   PHASE 2 ENHANCEMENTS — angelicamoller.com.br
   Scroll behavior + Sticky booking bar + Mobile UX improvements
   ============================================================ */

/* ===== HEADER SCROLL BEHAVIOR ===== */

.site_header {
    transition: background 0.35s ease, backdrop-filter 0.35s ease, border-bottom 0.35s ease;
    border-bottom: 1px solid transparent;
}

.site_header.scrolled {
    background: rgba(10, 10, 10, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom-color: rgba(232, 228, 220, 0.12);
}

/* ===== STICKY BOOKING BAR ===== */

.am-sticky-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 800;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid rgba(232, 228, 220, 0.1);
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.76, 0, 0.24, 1);
}

.am-sticky-bar[aria-hidden="false"] {
    transform: translateY(0);
}

.am-sticky-bar[aria-hidden="false"] .am-sticky-bar-btn {
    pointer-events: all;
    cursor: pointer;
}

.am-sticky-bar[aria-hidden="true"] .am-sticky-bar-btn {
    pointer-events: none;
}

.am-sticky-bar-text {
    font-family: 'Archivo', sans-serif;
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    color: rgba(232, 228, 220, 0.55);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.am-sticky-bar-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #4CAF73;
    animation: am-pulse 2s ease-in-out infinite;
}

@keyframes am-pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(0.8);
    }
}

@media (prefers-reduced-motion: reduce) {
    @keyframes am-pulse {
        from { opacity: 1; }
        to { opacity: 1; }
    }
}

.am-sticky-bar-btn {
    font-family: 'Archivo', sans-serif;
    font-size: 0.72rem;
    font-weight: 400;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: #e8e4dc;
    text-decoration: none;
    border: 1px solid rgba(232, 228, 220, 0.25);
    padding: 0.5rem 1.25rem;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.am-sticky-bar-btn:hover,
.am-sticky-bar-btn:focus-visible {
    background: #e8e4dc;
    color: #0a0a0a;
    border-color: #e8e4dc;
    outline: none;
}

.am-sticky-bar-btn[tabindex="-1"] {
    pointer-events: none;
}

/* Body padding when sticky bar visible */
body.am-bar-visible {
    padding-bottom: 56px;
}

/* ===== MOBILE IMPROVEMENTS ===== */

@media (max-width: 768px) {
    .am-sticky-bar {
        padding: 0 1.25rem;
    }
    
    .am-sticky-bar-text {
        font-size: 0.7rem;
    }
    
    .am-sticky-bar-btn {
        font-size: 0.68rem;
        padding: 0.45rem 1rem;
    }
}

@media (max-width: 480px) {
    .am-sticky-bar-text span:not(.am-sticky-bar-dot) {
        display: none;
    }
    
    .am-sticky-bar-text::after {
        content: 'Available';
        font-size: 0.7rem;
    }
}

/* ===== MOBILE MENU IMPROVEMENTS ===== */

.mobile-menu {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.mobile-menu.open {
    opacity: 1;
    transform: translateY(0);
}

/* Smoother burger animation */
.burger .content span {
    transition: transform 0.3s cubic-bezier(0.76, 0, 0.24, 1), 
                opacity 0.3s ease;
}

/* ===== REDUCED MOTION ===== */

@media (prefers-reduced-motion: reduce) {
    .site_header,
    .am-sticky-bar,
    .mobile-menu,
    .burger .content span {
        transition: none;
    }
}