/* ============================================================
   سایدبار چپ — لیست کارتی بزرگ
   ============================================================ */

:root {
    --sl-primary: #e94560;
    --sl-primary-dark: #c23152;
    --sl-primary-light: #ff6b6b;
    --sl-playing: #10b981;
    --sl-playing-dark: #059669;
    --sl-bg-track: rgba(255, 255, 255, 0.04);
    --sl-bg-track-hover: rgba(255, 255, 255, 0.08);
    --sl-bg-track-playing: rgba(16, 185, 129, 0.10);
    --sl-border: rgba(255, 255, 255, 0.08);
    --sl-text-primary: #ffffff;
    --sl-text-secondary: #d0d0e0;
    --sl-text-muted: #9a9ab0;
    --sl-radius: 16px;
    --sl-ease: cubic-bezier(0.4, 0, 0.2, 1);
    --sl-ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================
   سایدبار
   ============================================ */

.sidebar-left-side {
    padding: 8px 0;
}

.sidebar-left-sticky {
    position: sticky;
    top: 90px;
}

/* ============================================
   هدر سایدبار
   ============================================ */

.sidebar-left-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 18px;
    background: rgba(26, 26, 46, 0.5);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--sl-border);
    border-radius: var(--sl-radius);
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
}

.sidebar-left-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--sl-primary), var(--sl-primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(233, 69, 96, 0.35);
}

.sidebar-left-icon i {
    color: #ffffff;
    font-size: 1.05rem;
}

.sidebar-left-title {
    flex: 1;
    color: var(--sl-text-primary);
    font-size: 0.95rem;
    font-weight: 700;
    font-family: "bakhb", sans-serif;
    margin: 0;
    line-height: 1.5;
    min-width: 0;
}

.sidebar-left-artist-link {
    color: var(--sl-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.sidebar-left-artist-link:hover {
    color: var(--sl-primary-light);
}

.sidebar-left-count {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 34px;
    height: 28px;
    padding: 0 10px;
    background: rgba(233, 69, 96, 0.18);
    border: 1px solid rgba(233, 69, 96, 0.3);
    border-radius: 14px;
    color: var(--sl-primary);
    font-size: 0.75rem;
    font-weight: 700;
    font-family: "bakhb", sans-serif;
    flex-shrink: 0;
}

/* ============================================
   لیست آهنگ‌ها
   ============================================ */

.sidebar-left-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ============================================
   هر ترک
   ============================================ */

.sidebar-track {
    display: grid;
    grid-template-columns: 80px 1fr auto auto;
    align-items: center;
    gap: 14px;
    padding: 14px;
    border-radius: var(--sl-radius);
    background: var(--sl-bg-track);
    border: 1px solid var(--sl-border);
    transition: all 0.3s var(--sl-ease);
    position: relative;
}

.sidebar-track:hover {
    background: var(--sl-bg-track-hover);
    border-color: rgba(233, 69, 96, 0.25);
    transform: translateX(-4px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
}

/* حالت در حال پخش */
.sidebar-track.is-playing {
    background: var(--sl-bg-track-playing);
    border-color: rgba(16, 185, 129, 0.45);
    box-shadow: 
        0 0 0 1px rgba(16, 185, 129, 0.25),
        0 6px 24px rgba(16, 185, 129, 0.15);
}

/* ============================================
   کاور
   ============================================ */

.sidebar-track-cover {
    position: relative;
    width: 80px;
    height: 80px;
    border-radius: 14px;
    overflow: hidden;
    flex-shrink: 0;
    background: #0f0f1a;
    display: block;
    text-decoration: none;
    transition: transform 0.4s var(--sl-ease);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.sidebar-track:hover .sidebar-track-cover {
    transform: scale(1.04);
}

.sidebar-track-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: filter 0.3s ease;
}

.sidebar-track:hover .sidebar-track-cover img {
    filter: brightness(0.85);
}

/* ============================================
   موج صوتی (روی کاور، در حال پخش)
   ============================================ */

.sidebar-track-wave {
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: flex-end;
    gap: 3px;
    height: 18px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 2;
}

.sidebar-track.is-playing .sidebar-track-wave {
    opacity: 1;
    visibility: visible;
}

.sidebar-track-wave span {
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, #6ee7b7, var(--sl-playing));
    border-radius: 2px;
    transform-origin: bottom;
    box-shadow: 0 0 6px rgba(16, 185, 129, 0.9);
    animation: sl-wave 0.9s ease-in-out infinite;
}

.sidebar-track-wave span:nth-child(1) { animation-delay: 0s; height: 60%; }
.sidebar-track-wave span:nth-child(2) { animation-delay: 0.15s; height: 100%; }
.sidebar-track-wave span:nth-child(3) { animation-delay: 0.3s; height: 70%; }

@keyframes sl-wave {
    0%, 100% { transform: scaleY(0.4); }
    50%      { transform: scaleY(1); }
}

.sidebar-track.is-playing .sidebar-track-cover img {
    filter: brightness(0.5);
}

/* ============================================
   اطلاعات (عنوان + خواننده)
   ============================================ */

.sidebar-track-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
    text-decoration: none;
    color: inherit;
}

.sidebar-track-title {
    display: block;
    color: var(--sl-text-primary);
    font-size: 1.05rem;
    font-weight: 700;
    font-family: "bakhb", sans-serif;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.sidebar-track:hover .sidebar-track-title {
    color: var(--sl-primary-light);
}

.sidebar-track.is-playing .sidebar-track-title {
    color: var(--sl-playing);
}

.sidebar-track-artist {
    display: block;
    color: var(--sl-text-muted);
    font-size: 0.85rem;
    font-family: "bakhn", sans-serif;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.sidebar-track:hover .sidebar-track-artist {
    color: var(--sl-text-secondary);
}

/* ============================================
   آمار (لایک + بازدید)
   ============================================ */

.sidebar-track-stats {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex-shrink: 0;
    min-width: 56px;
}

.sidebar-track-stat {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--sl-text-muted);
    font-size: 0.78rem;
    font-family: "bakhb", sans-serif;
    line-height: 1;
    white-space: nowrap;
}

.sidebar-track-stat i {
    font-size: 0.9rem;
    color: var(--sl-primary);
    opacity: 0.85;
}

.sidebar-track.is-playing .sidebar-track-stat i {
    color: var(--sl-playing);
}

/* ============================================
   دکمه پلی
   ============================================ */

.sidebar-track-play {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid rgba(233, 69, 96, 0.35);
    background: #ffffff;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s var(--sl-ease-bounce);
    box-shadow: 0 3px 10px rgba(233, 69, 96, 0.25);
    opacity: 0.9;
}

.sidebar-track:hover .sidebar-track-play {
    opacity: 1;
    transform: scale(1.08);
    box-shadow: 0 5px 18px rgba(233, 69, 96, 0.45);
}

.sidebar-track-play:hover {
    transform: scale(1.12) !important;
    background: var(--sl-primary);
    border-color: var(--sl-primary);
}

.sidebar-track-play i {
    color: var(--sl-primary);
    font-size: 1rem;
    margin-right: 2px;
    line-height: 1;
    transition: color 0.3s ease;
}

.sidebar-track-play:hover i {
    color: #ffffff;
}

/* در حال پخش */
.sidebar-track.is-playing .sidebar-track-play {
    background: linear-gradient(135deg, var(--sl-playing), var(--sl-playing-dark));
    border-color: var(--sl-playing);
    opacity: 1;
    box-shadow: 
        0 0 0 5px rgba(16, 185, 129, 0.18),
        0 5px 14px rgba(16, 185, 129, 0.5);
}

.sidebar-track.is-playing .sidebar-track-play i {
    color: #ffffff;
}

.sidebar-track-play-disabled {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}

/* ============================================
   حالت خالی
   ============================================ */

.sidebar-left-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 40px 24px;
    text-align: center;
    background: rgba(26, 26, 46, 0.35);
    border: 1px solid var(--sl-border);
    border-radius: var(--sl-radius);
}

.sidebar-left-empty i {
    font-size: 2.4rem;
    color: var(--sl-primary);
    opacity: 0.35;
    margin-bottom: 6px;
}

.sidebar-left-empty p {
    color: var(--sl-text-secondary);
    font-size: 0.95rem;
    font-family: "bakhn", sans-serif;
    margin: 0;
}

.sidebar-left-empty span {
    color: var(--sl-text-muted);
    font-size: 0.82rem;
    font-family: "bakhn", sans-serif;
}

/* ============================================
   موبایل: دکمه پلی همیشه نمایان
   ============================================ */

@media (hover: none) {
    .sidebar-track-play {
        opacity: 1;
    }
}

/* ============================================
   ریسپانسیو
   ============================================ */

@media (max-width: 1280px) {
    .sidebar-left-sticky {
        position: static;
    }
}

@media (max-width: 1024px) {
    .sidebar-track {
        grid-template-columns: 68px 1fr auto auto;
        gap: 12px;
        padding: 12px;
    }
    
    .sidebar-track-cover {
        width: 68px;
        height: 68px;
    }
    
    .sidebar-track-title {
        font-size: 0.95rem;
    }
    
    .sidebar-track-artist {
        font-size: 0.78rem;
    }
    
    .sidebar-track-play {
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 480px) {
    .sidebar-left-header {
        padding: 14px 16px;
    }
    
    .sidebar-left-icon {
        width: 34px;
        height: 34px;
    }
    
    .sidebar-left-icon i {
        font-size: 0.95rem;
    }
    
    .sidebar-left-title {
        font-size: 0.88rem;
    }
    
    .sidebar-track {
        grid-template-columns: 60px 1fr auto;
        gap: 10px;
        padding: 10px;
    }
    
    .sidebar-track-cover {
        width: 60px;
        height: 60px;
        border-radius: 12px;
    }
    
    .sidebar-track-title {
        font-size: 0.88rem;
    }
    
    .sidebar-track-artist {
        font-size: 0.72rem;
    }
    
    .sidebar-track-play {
        width: 38px;
        height: 38px;
    }
    
    .sidebar-track-play i {
        font-size: 0.85rem;
    }
    
    /* آمار در موبایل مخفی */
    .sidebar-track-stats {
        display: none;
    }
}