/* --- Global Styles & Variables --- */
:root {
    --primary-color: #5E35B1; /* New: Deep Purple */
    --primary-hover: #673AB7; /* New: Lighter Purple */
    --background-color: #F8F9FA;
    --surface-color: #FFFFFF;
    --surface-hover: #F1F3F5;
    --border-color: #E9ECEF;
    --text-color: #212529;     /* New: Darker text */
    --text-light: #6C757D;
    --artist-color: #7E57C2;   /* New: Special color for artists */
    --footer-bg: var(--primary-color);
    --footer-text: #E0E0E0;    /* New: Light text for footer */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    --border-radius: 8px;
    --player-height: 90px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    --box-shadow-heavy: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* --- Base Setup --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px; /* Base font size */
    padding-bottom: var(--player-height);
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.2s ease;
}

a:hover {
    color: var(--primary-hover);
}

ul {
    list-style-type: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* SVG icon styles */
svg {
    vertical-align: middle;
}


/* --- Buttons & UI Elements --- */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 500px;
    cursor: pointer;
    font-weight: bold;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    white-space: nowrap;
}

.btn svg {
    stroke-width: 2.5;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}
.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: scale(1.03);
    box-shadow: 0 4px 10px rgba(94, 53, 177, 0.3);
}

.btn-secondary {
    background-color: var(--surface-hover);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background-color: #e9ecef;
}

.btn-telegram {
    background-color: #2AABEE;
    color: white;
}
.btn-telegram:hover {
    background-color: #1a9cd6;
}


/* --- Site Layout --- */
.site-wrapper {
    min-height: calc(100vh - var(--player-height));
}

.main-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 24px;
    padding: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

/* --- Header --- */
.site-header {
    background-color: var(--surface-color);
    padding: 0 20px;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
    height: 70px;
    box-shadow: var(--box-shadow);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    height: 100%;
}

.header-left, .header-right {
    display: flex;
    align-items: center;
    flex: 1;
}

.header-left {
    justify-content: flex-start;
}

.header-right {
    justify-content: flex-end;
}

.header-nav {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex: 2;
}
.header-nav a {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-light);
    padding: 8px 0;
    border-bottom: 2px solid transparent;
}
.header-nav a:hover, .header-nav a.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.logo a {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-color);
    margin-left: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.logo a svg {
    color: var(--primary-color);
}


.header-search {
    display: flex;
    width: 250px;
    border: 1px solid var(--border-color);
    border-radius: 500px;
    overflow: hidden;
}
.header-search input {
    width: 100%;
    border: none;
    padding: 9px 15px;
    outline: none;
    background: transparent;
    font-size: 15px;
}
.header-search button {
    border: none;
    background: transparent;
    padding: 0 15px;
    cursor: pointer;
    color: var(--text-light);
}

/* --- Mobile Search --- */
.mobile-search-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text-color);
    cursor: pointer;
}
.mobile-search-form {
    display: none;
    position: absolute;
    top: 70px; /* Below header */
    left: 0;
    width: 100%;
    background: var(--surface-color);
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}
.mobile-search-form.open {
    display: flex;
}
.mobile-search-form input {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 500px;
    padding: 10px 15px;
    outline: none;
    font-size: 16px;
}
.mobile-search-form button {
    display: none;
}


/* --- Sidebar --- */
.sidebar {
    background-color: transparent;
    padding: 0;
}

.sidebar-header {
    display: none;
}

.sidebar-inner {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 94px; /* header height + padding */
}

.widget {
    background-color: var(--surface-color);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.widget-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 15px;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 8px;
}
.widget-title svg {
    color: var(--primary-color);
}

.category-list li a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 8px 0;
    color: var(--text-light);
    font-size: 15px;
    font-weight: 500;
}

.category-list li a:hover {
    color: var(--text-color);
}

.category-list li a svg {
    color: var(--text-light);
    transition: color 0.2s ease;
}
.category-list li a:hover svg {
    color: var(--primary-color);
}

.top-list li a {
    display: flex;
    padding: 8px 0;
    gap: 10px;
}
.top-list li p {
    font-size: 15px; /* Increased */
    margin: 0;
    line-height: 1.3;
    font-weight: 500;
    color: var(--text-color);
}
.top-list li small {
    font-size: 13px; /* Increased */
    color: var(--artist-color); /* New artist color */
}

/* --- Main Content --- */
.content {
    background-color: transparent;
}

.section-title {
    font-size: 24px;
    font-weight: 700; /* Bolder */
    margin-top: 30px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

/* --- FINAL: New Tabs Design --- */
.tabs-container {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}
.tabs {
    display: inline-flex;
    background-color: var(--surface-hover);
    border-radius: var(--border-radius);
    padding: 5px;
}
.tab-link {
    padding: 10px 24px;
    border: none;
    background: transparent;
    color: var(--text-light);
    cursor: pointer;
    font-size: 15px;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-weight: 600;
}
.tab-link.active, .tab-link:hover {
    background-color: var(--surface-color);
    color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
}

/* --- Song List --- */
.song-list-container {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}
.song-list {
    display: flex;
    flex-direction: column;
}
.song-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}
.song-list .song-item:last-child {
    border-bottom: none;
}
.song-item:not([data-src]) {
    cursor: default;
}
.song-item[data-src] {
    cursor: pointer;
}
.song-item[data-src]:hover {
    background-color: var(--surface-hover);
}
.song-item.playing {
    background-color: #ede7f6; /* Light purple for playing state */
}
.song-item.playing .song-title {
    color: var(--primary-color);
}

.song-art {
    width: 50px;
    height: 50px;
    border-radius: 6px;
    flex-shrink: 0;
    position: relative;
    background-color: var(--surface-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.play-btn-sm {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    border-radius: 6px;
    border: none;
    background-color: rgba(0,0,0,0.5);
    color: white;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 18px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
}
.song-item[data-src]:hover .play-btn-sm,
.song-item.playing .play-btn-sm {
    opacity: 1;
}

.song-info {
    flex-grow: 1;
}
.song-title {
    font-size: 16px;
    display: block;
    font-weight: 500;
    color: var(--text-color);
}
.song-artist {
    color: var(--artist-color); /* New artist color */
    font-size: 14px;
}
.song-duration {
    font-size: 14px;
    color: var(--text-light);
    padding: 0 10px;
}

/* --- Featured Banner (index.html) --- */
.featured-banner {
    background-image: linear-gradient(to right, #673AB7, #512DA8); /* New gradient */
    background-size: cover;
    background-position: center;
    padding: 40px;
    border-radius: var(--border-radius);
    margin-bottom: 24px;
    text-align: left;
    color: white;
}
.featured-content h2 {
    font-size: 14px;
    text-transform: uppercase;
    margin-bottom: 10px;
    font-weight: normal;
    opacity: 0.8;
}
.featured-content p {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 20px;
}
.featured-banner .btn-primary {
    background: white;
    color: var(--primary-color);
}
.featured-banner .btn-primary:hover {
    background: #f0f0f0;
}


/* --- Song Page (song.html) --- */
.song-page-container {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 24px;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 30px;
    box-shadow: var(--box-shadow);
}

.song-art-placeholder-large {
    width: 120px;
    height: 120px;
    background-color: var(--surface-hover);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    flex-shrink: 0;
}

.song-details-main {
    display: flex;
    gap: 24px;
    align-items: center;
}
.song-info-main {
    display: flex;
    flex-direction: column;
}
.song-page-artist {
    font-size: 18px;
    font-weight: 500;
    color: var(--artist-color); /* New artist color */
    margin: 0;
}
.song-page-title {
    font-size: 40px; /* Bigger */
    font-weight: 800; /* Bolder */
    color: var(--text-color);
    margin: 0 0 16px 0;
    letter-spacing: -1px;
}
.song-page-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.song-page-actions .btn {
    flex-basis: auto;
    flex-grow: 0;
}

.song-stats-list {
    border-left: 3px solid var(--primary-color);
    padding-left: 20px;
    margin-bottom: 20px;
}
.song-stats-list li {
    padding: 4px 0;
    font-size: 15px;
    color: var(--text-light);
}
.song-stats-list li strong {
    color: var(--text-color);
}

.page-description {
    margin-top: 20px;
    background-color: var(--background-color);
    padding: 15px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.page-description h3 {
    margin-bottom: 10px;
    font-size: 18px;
    color: var(--primary-color);
}

.page-description p {
    font-size: 15px; /* Increased */
    color: var(--text-light);
    line-height: 1.7;
}

.lyrics-section, .recommendations-section {
    padding: 20px;
    background: var(--surface-color);
    border-radius: var(--border-radius);
    margin-top: 20px;
    box-shadow: var(--box-shadow);
}
.lyrics-section p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-light);
}


/* --- Footer --- */
.site-footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: 40px 20px;
    font-size: 15px; /* Increased */
    margin-top: 30px;
}
.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}
.footer-main .logo a {
    color: var(--surface-color);
}
.footer-main .logo a svg {
    color: #fff;
    opacity: 0.8;
}
.footer-main p {
    color: var(--footer-text);
}
.footer-extra {
    display: flex;
    gap: 20px;
    align-items: center;
}
.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}
.footer-links a {
    color: var(--footer-text);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.footer-links a:hover {
    color: var(--surface-color);
}


/* --- Player Bar --- */
.player-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--surface-color);
    border-top: 1px solid var(--border-color);
    z-index: 1000;
    height: var(--player-height);
    box-shadow: var(--box-shadow-heavy);
}
.player-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1.5fr 1fr;
    align-items: center;
    height: 100%;
}
.track-info {
    display: flex;
    align-items: center;
    gap: 12px;
}
.player-art-placeholder {
    width: 56px;
    height: 56px;
    border-radius: var(--border-radius);
    background-color: var(--surface-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.track-info span { 
    display: block;
    font-size: 15px; /* Increased */
    font-weight: 500;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.track-info small { 
    color: var(--artist-color); 
    font-size: 13px; /* Increased */
} 

.player-controls-main {
    display: flex;
    align-items: center;
    gap: 20px;
    justify-content: center;
}
.player-controls-main button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-light);
    transition: all 0.2s ease;
    padding: 5px;
}
.player-controls-main button:hover { color: var(--text-color); transform: scale(1.1); }
.player-controls-main .play-main {
    width: 45px;
    height: 45px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}
.play-main .pause-icon { display: none; }

.player-controls-main .play-main:hover { background-color: var(--primary-hover); }
.player-controls-main button.active { color: var(--primary-color); }
.repeat-one-badge { font-size: 8px; position: absolute; background: var(--primary-color); color: white; border-radius: 50%; width: 12px; height: 12px; line-height: 12px; text-align: center; top: 0; right: 0; }
#repeat-btn { position: relative; }

.progress-and-volume {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: flex-end;
}
.time-current, .time-total {
    font-size: 13px; /* Increased */
    color: var(--text-light);
    width: 35px;
    text-align: center;
}

/* --- FINAL: Custom Range Slider Styles --- */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    cursor: pointer;
    height: 20px; /* Increased height for easier interaction */
}
.progress-bar {
    width: 100%;
}
.volume-slider {
    max-width: 100px;
}

/* Track */
input[type="range"]::-webkit-slider-runnable-track {
    background: var(--border-color);
    height: 8px; /* Bolder track */
    border-radius: 4px;
}
.progress-bar::-webkit-slider-runnable-track {
    background: linear-gradient(to right, var(--primary-color) var(--progress-percent, 0%), var(--border-color) var(--progress-percent, 0%));
}
.volume-slider::-webkit-slider-runnable-track {
    background: linear-gradient(to right, var(--primary-color) var(--volume-percent, 80%), var(--border-color) var(--volume-percent, 80%));
}
input[type="range"]::-moz-range-track {
    background: var(--border-color);
    height: 8px; /* Bolder track */
    border-radius: 4px;
    border: none;
}
.progress-bar::-moz-range-track {
    background: linear-gradient(to right, var(--primary-color) var(--progress-percent, 0%), var(--border-color) var(--progress-percent, 0%));
}
.volume-slider::-moz-range-track {
    background: linear-gradient(to right, var(--primary-color) var(--volume-percent, 80%), var(--border-color) var(--volume-percent, 80%));
}

/* Thumb */
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px; /* Larger thumb */
    height: 18px; /* Larger thumb */
    border-radius: 50%;
    background: var(--surface-color);
    border: 3px solid var(--primary-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    margin-top: -5px; /* (track_height - thumb_height) / 2 -> (8 - 18) / 2 = -5 */
    transition: transform 0.2s ease;
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--surface-color);
    border: 3px solid var(--primary-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    border: none;
}

/* Hover/Active State */
input[type="range"]:active::-webkit-slider-thumb {
    transform: scale(1.2);
}
input[type="range"]:active::-moz-range-thumb {
    transform: scale(1.2);
}

#volume-btn { background: none; border: none; cursor: pointer; color: var(--text-light); }
#volume-btn .volume-low-icon, #volume-btn .volume-x-icon { display: none; }

/* --- Mobile Menu --- */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    z-index: 1001;
    padding: 10px;
}
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 998;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .header-nav { display: none; }
    .header-search { display: none; }
    .mobile-search-toggle { display: block; }

    .header-container {
        justify-content: space-between;
    }
    .header-left, .header-right { flex: none; }
    
    .main-layout {
        grid-template-columns: 1fr;
    }
    .menu-toggle {
        display: block;
    }
    
    /* --- NEW MOBILE SIDEBAR STYLES --- */
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        width: 300px;
        max-width: 85%;
        height: 100%;
        background-color: var(--surface-color);
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
        z-index: 1000;
        padding: 0;
        border-right: 1px solid var(--border-color);
        display: flex;
        flex-direction: column;
    }
    .sidebar.open {
        transform: translateX(0);
        box-shadow: 0 0 25px rgba(0,0,0,0.15);
    }
    .sidebar .sidebar-inner {
        position: static;
        padding: 20px;
        overflow-y: auto;
        flex-grow: 1;
        min-height: 0;
    }
    .sidebar-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 20px;
        height: 70px;
        border-bottom: 1px solid var(--border-color);
        flex-shrink: 0;
    }
    .sidebar-header .logo a {
        margin-left: 0;
    }
    .close-sidebar-btn {
        background: none;
        border: none;
        color: var(--text-light);
        cursor: pointer;
        padding: 10px;
    }
    .sidebar .widget {
        border: none;
        padding: 0;
        background: none;
        box-shadow: none;
    }
    .sidebar .widget:not(:last-child) {
        padding-bottom: 20px;
        margin-bottom: 20px;
        border-bottom: 1px solid var(--border-color);
    }

    .sidebar .category-list li a {
        padding: 12px 10px;
        border-radius: var(--border-radius);
    }
    .sidebar .category-list li a:hover {
        background-color: var(--surface-hover);
        color: var(--primary-color);
    }

    .sidebar-overlay.active {
        display: block;
    }

    .song-page-container {
        grid-template-columns: 1fr;
    }
    .song-details-extra {
        border-left: none;
        padding-left: 0;
        border-top: 1px solid var(--border-color);
        padding-top: 24px;
        margin-top: 24px;
    }
}

@media (max-width: 768px) {
    body {
        padding-bottom: 120px;
        font-size: 15px; /* Adjust base font size for mobile */
    }
    .player-bar {
      height: auto;
    }
    .player-container {
        grid-template-columns: 1fr;
        padding: 10px 15px;
        gap: 8px;
    }
    .track-info {
        grid-row: 1;
        width: 100%;
    }
    .progress-and-volume {
        grid-row: 2;
        width: 100%;
    }
    .player-controls-main {
        grid-row: 3;
        width: 100%;
    }
    .time-current, .time-total {
        display: block;
    }
    #volume-btn, .volume-slider {
        display: none;
    }
    
    .song-details-main {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .song-page-title {
        font-size: 32px;
    }
    .song-art-placeholder-large {
        width: 180px;
        height: 180px;
        margin-bottom: 20px;
    }
    .song-page-actions {
        justify-content: center;
    }

    .tabs {
        flex-wrap: wrap;
        justify-content: center;
    }
    .tab-link {
        padding: 8px 16px;
        font-size: 14px;
    }
}