/**
 * Music Library - Mobile Menu (Hamburger)
 * 
 * Ce fichier contient les styles pour le menu hamburger mobile
 * et l'optimisation de l'interface mobile.
 * 
 * @module assets/css/components/mobile-menu
 * @version 1.0.0
 */

/* ============================================
   HAMBURGER BUTTON
   ============================================ */

.mobile-menu-toggle {
    display: none;
    background: var(--music-bg-secondary);
    border: 1px solid var(--music-border);
    color: var(--music-text-primary);
    width: 44px;
    height: 44px;
    border-radius: var(--music-radius);
    cursor: pointer;
    position: relative;
    z-index: 1001;
    transition: all var(--music-transition);
}

.mobile-menu-toggle:hover {
    background: var(--music-bg-hover);
    border-color: var(--music-primary);
}

.mobile-menu-toggle:active {
    transform: scale(0.95);
}

/* Icône hamburger */
.hamburger {
    width: 24px;
    height: 18px;
    position: relative;
    margin: 0 auto;
    transform: rotate(0deg);
    transition: 0.5s ease-in-out;
}

.hamburger span {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: var(--music-text-primary);
    border-radius: 3px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: 0.25s ease-in-out;
}

.hamburger span:nth-child(1) {
    top: 0px;
}

.hamburger span:nth-child(2) {
    top: 7px;
}

.hamburger span:nth-child(3) {
    top: 14px;
}

/* État ouvert */
.mobile-menu-toggle.active .hamburger span:nth-child(1) {
    top: 7px;
    transform: rotate(135deg);
}

.mobile-menu-toggle.active .hamburger span:nth-child(2) {
    opacity: 0;
    left: -60px;
}

.mobile-menu-toggle.active .hamburger span:nth-child(3) {
    top: 7px;
    transform: rotate(-135deg);
}

/* ============================================
   MOBILE SIDEBAR OVERLAY
   ============================================ */

.mobile-sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-sidebar-overlay.active {
    opacity: 1;
}

/* ============================================
   MOBILE SIDEBAR
   ============================================ */

.music-sidebar.mobile {
    position: fixed;
    top: 0;
    left: -100%;
    bottom: 0;
    width: 280px;
    max-width: 85vw;
    background: var(--music-bg-primary);
    border-right: 1px solid var(--music-border);
    z-index: 1000;
    overflow-y: auto;
    transition: left 0.3s ease;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
}

.music-sidebar.mobile.active {
    left: 0;
}

/* Header du sidebar mobile */
.mobile-sidebar-header {
    display: none;
    padding: var(--music-spacing-lg);
    border-bottom: 1px solid var(--music-border);
    background: var(--music-bg-secondary);
    position: sticky;
    top: 0;
    z-index: 10;
}

.mobile-sidebar-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--music-text-primary);
    display: flex;
    align-items: center;
    gap: var(--music-spacing-sm);
}

.mobile-sidebar-close {
    background: transparent;
    border: none;
    color: var(--music-text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 4px;
    margin-left: auto;
    transition: color var(--music-transition);
}

.mobile-sidebar-close:hover {
    color: var(--music-text-primary);
}

/* ============================================
   MOBILE HEADER
   ============================================ */

.mobile-music-header {
    display: none;
    padding: var(--music-spacing-md);
    background: var(--music-bg-secondary);
    border-bottom: 1px solid var(--music-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.mobile-header-top {
    display: flex;
    align-items: center;
    gap: var(--music-spacing-md);
    margin-bottom: var(--music-spacing-md);
}

.mobile-header-title {
    flex: 1;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--music-text-primary);
}

/* ============================================
   MOBILE BOTTOM NAV
   ============================================ */

.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--music-bg-secondary);
    border-top: 1px solid var(--music-border);
    padding: 8px;
    z-index: 98;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.2);
}

.mobile-bottom-nav-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    background: transparent;
    border: none;
    color: var(--music-text-secondary);
    cursor: pointer;
    transition: all var(--music-transition);
    border-radius: var(--music-radius);
    flex: 1;
    max-width: 80px;
}

.mobile-nav-item:active {
    transform: scale(0.95);
}

.mobile-nav-item.active {
    color: var(--music-primary);
    background: rgba(0, 212, 255, 0.1);
}

.mobile-nav-icon {
    font-size: 1.5rem;
}

.mobile-nav-label {
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   MOBILE PLAYER ADJUSTMENTS
   ============================================ */

.music-player.mobile-compact {
    padding: var(--music-spacing-sm);
    flex-wrap: wrap;
}

.music-player.mobile-compact .player-track-info {
    flex: 1;
    min-width: 0;
}

.music-player.mobile-compact .player-cover {
    width: 48px;
    height: 48px;
}

.music-player.mobile-compact .player-controls-center {
    order: 3;
    width: 100%;
    justify-content: center;
    margin-top: var(--music-spacing-sm);
}

.music-player.mobile-compact .player-progress-container {
    order: 2;
    width: 100%;
    margin: var(--music-spacing-sm) 0;
}

.music-player.mobile-compact .player-volume-container {
    display: none;
}

/* ============================================
   MOBILE SEARCH
   ============================================ */

.mobile-search-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--music-bg-primary);
    z-index: 1002;
    padding: var(--music-spacing-md);
    overflow-y: auto;
}

.mobile-search-overlay.active {
    display: block;
    animation: slideUp 0.3s ease-out;
}

.mobile-search-header {
    display: flex;
    align-items: center;
    gap: var(--music-spacing-md);
    margin-bottom: var(--music-spacing-lg);
}

.mobile-search-back {
    background: transparent;
    border: none;
    color: var(--music-text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 4px;
}

.mobile-search-input-container {
    flex: 1;
}

/* ============================================
   MOBILE ALPHABET NAV
   ============================================ */

.alphabet-nav.mobile {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--music-bg-primary);
    padding: var(--music-spacing-sm);
    overflow-x: auto;
    flex-wrap: nowrap;
    scrollbar-width: none;
}

.alphabet-nav.mobile::-webkit-scrollbar {
    display: none;
}

.alphabet-nav.mobile .alphabet-btn {
    flex-shrink: 0;
}

/* ============================================
   MOBILE MODALS
   ============================================ */

.modal.mobile-fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 0;
    max-width: none;
    max-height: none;
    margin: 0;
}

.modal.mobile-fullscreen .modal-header {
    position: sticky;
    top: 0;
    background: var(--music-bg-secondary);
    z-index: 10;
}

/* ============================================
   MOBILE RESPONSIVE BREAKPOINTS
   ============================================ */

@media (max-width: 768px) {
    /* Afficher les éléments mobiles */
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .mobile-sidebar-overlay {
        display: block;
    }
    
    .mobile-sidebar-header {
        display: flex;
        align-items: center;
    }
    
    .mobile-music-header {
        display: block;
    }
    
    .mobile-bottom-nav {
        display: block;
    }
    
    /* Cacher le sidebar desktop */
    .music-sidebar:not(.mobile) {
        display: none;
    }
    
    /* Ajuster le layout principal */
    .music-layout {
        flex-direction: column;
    }
    
    .music-main {
        padding: var(--music-spacing-sm);
        padding-bottom: calc(80px + var(--music-spacing-xl));
    }
    
    /* Ajuster le header */
    .music-header {
        display: none;
    }
    
    /* Ajuster le player */
    .music-player {
        bottom: 60px;
    }
    
    /* Ajuster les cartes */
    .track-card {
        padding: var(--music-spacing-sm);
    }
    
    .track-cover-container {
        width: 48px;
        height: 48px;
    }
    
    /* Toujours afficher les actions sur mobile */
    .track-actions {
        opacity: 1;
        transform: translateX(0);
    }
}

@media (max-width: 480px) {
    .mobile-menu-toggle {
        width: 40px;
        height: 40px;
    }
    
    .hamburger {
        width: 20px;
        height: 16px;
    }
    
    .music-sidebar.mobile {
        width: 260px;
    }
    
    .mobile-nav-item {
        padding: 6px 8px;
    }
    
    .mobile-nav-icon {
        font-size: 1.25rem;
    }
    
    .mobile-nav-label {
        font-size: 0.5625rem;
    }
}

/* ============================================
   LANDSCAPE MODE
   ============================================ */

@media (max-width: 768px) and (orientation: landscape) {
    .mobile-bottom-nav {
        padding: 4px;
    }
    
    .mobile-nav-item {
        padding: 4px 8px;
    }
    
    .mobile-nav-icon {
        font-size: 1.25rem;
    }
    
    .mobile-nav-label {
        display: none;
    }
    
    .music-player {
        padding: var(--music-spacing-sm);
    }
}