/* ==========================================================================
   SHAMEL.TV - RECREATED PLAYLIST MANAGEMENT SITE - MODERN CSS SYSTEM
   ========================================================================== */

/* --- CSS Variables & Design Tokens --- */
:root {
    --bg-dark: #0f0717;
    --bg-card: rgba(30, 16, 45, 0.5);
    --bg-card-hover: rgba(45, 24, 68, 0.65);
    --border-color: rgba(108, 85, 147, 0.25);
    --border-color-focus: rgba(2, 139, 248, 0.8);
    
    --primary-color: #f44336;
    --primary-grad: linear-gradient(135deg, #ff5252, #e53935);
    --primary-shadow: rgba(244, 67, 54, 0.4);
    
    --accent-blue: #028bf8;
    --accent-blue-grad: linear-gradient(135deg, #00d2ff, #0066ff);
    
    --accent-gold: #ffc619;
    --accent-gold-grad: linear-gradient(135deg, #ffe066, #ffb300);
    
    --success-color: #4caf50;
    --success-grad: linear-gradient(135deg, #66bb6a, #43a047);
    
    --text-primary: #ffffff;
    --text-secondary: #dadada;
    --text-muted: #8e7a9e;
    
    --glass-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.5);
    --transition-speed: 0.3s;
    --border-radius: 16px;
    --border-radius-sm: 8px;
}

/* --- Base Setup --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    outline: none;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-dark);
    font-family: 'Inter', sans-serif;
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    line-height: 1.6;
}

/* --- Dynamic Background Glow Elements --- */
.bg-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(150px);
    z-index: -1;
    opacity: 0.25;
    pointer-events: none;
    animation: drift 25s infinite alternate ease-in-out;
}

.bg-glow-1 {
    background: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
    top: -200px;
    left: -200px;
    animation-duration: 20s;
}

.bg-glow-2 {
    background: radial-gradient(circle, var(--border-color-focus) 0%, transparent 70%);
    bottom: -200px;
    right: -200px;
    animation-duration: 25s;
    animation-delay: -5s;
}

.bg-glow-3 {
    background: radial-gradient(circle, #6c5593 0%, transparent 70%);
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    opacity: 0.12;
    animation: pulseGlow 15s infinite alternate ease-in-out;
}

@keyframes drift {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(100px, 50px) scale(1.2); }
}

@keyframes pulseGlow {
    0% { transform: translate(-50%, -50%) scale(0.9); opacity: 0.08; }
    100% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.15; }
}

/* --- App Container --- */
.app-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* --- Header System --- */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: rgba(21, 12, 30, 0.4);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.05);
    margin-bottom: 30px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.brand-name {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: 1px;
}

.brand-name .highlight {
    color: var(--primary-color);
}

.header-nav {
    display: flex;
    gap: 16px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
    color: var(--text-primary);
    background: rgba(244, 67, 54, 0.15);
    border: 1px solid rgba(244, 67, 54, 0.3);
}

/* --- Glassmorphic Panels --- */
.glassmorphism {
    background: var(--bg-card);
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--glass-shadow);
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Layout Views --- */
.view-section {
    display: none;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.view-section.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* ==================== LOGIN VIEW STYLING ==================== */
.login-card {
    max-width: 520px;
    margin: 40px auto 0;
    padding: 40px;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h2 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 2rem;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* --- Tabs --- */
.tabs-container {
    display: flex;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--border-radius-sm);
    padding: 4px;
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.03);
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 10px;
    cursor: pointer;
    border-radius: calc(var(--border-radius-sm) - 2px);
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    background: rgba(108, 85, 147, 0.3);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

/* --- Tab Content --- */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Forms & Controls --- */
.form-group {
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group input {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    padding: 12px 16px;
    transition: all var(--transition-speed);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}

.form-group input:focus {
    border-color: var(--accent-blue);
    background: rgba(0, 0, 0, 0.6);
    box-shadow: 0 0 10px rgba(2, 139, 248, 0.25), inset 0 2px 4px rgba(0,0,0,0.3);
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.25);
}

.input-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    padding: 12px 24px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
}

.btn-primary {
    background: var(--primary-grad);
    color: var(--text-primary);
    box-shadow: 0 4px 15px var(--primary-shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(244, 67, 54, 0.6);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.btn-block {
    display: flex;
    width: 100%;
}

/* --- QR Code Area --- */
.qr-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 10px 0;
}

.qr-code-frame {
    position: relative;
    background: white;
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 24px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    overflow: hidden;
}

.qr-code-img {
    width: 180px;
    height: 180px;
    display: block;
}

.qr-scan-line {
    position: absolute;
    left: 15px;
    right: 15px;
    height: 3px;
    background: var(--primary-color);
    box-shadow: 0 0 10px var(--primary-color);
    animation: scanAnimation 3s infinite linear;
}

@keyframes scanAnimation {
    0% { top: 15px; }
    50% { top: calc(180px + 15px); }
    100% { top: 15px; }
}

.qr-instructions {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.7;
    max-width: 320px;
}

/* --- Disclaimer Box --- */
.disclaimer-box {
    margin-top: 30px;
    background: rgba(255, 198, 25, 0.06);
    border: 1px solid rgba(255, 198, 25, 0.2);
    border-radius: var(--border-radius-sm);
    padding: 16px;
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.disclaimer-icon {
    color: var(--accent-gold);
    font-size: 1.2rem;
}

.disclaimer-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* --- Help/Guide Section --- */
.help-section {
    max-width: 520px;
    margin: 0 auto;
    padding: 24px 30px;
}

.help-section h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.15rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.guide-steps {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.guide-step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.step-num {
    background: rgba(108, 85, 147, 0.4);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.step-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding-top: 3px;
}

.step-text strong {
    color: var(--text-primary);
}


/* ==================== DASHBOARD VIEW STYLING ==================== */

/* --- Info Banner Panel --- */
.dashboard-header-panel {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    align-items: center;
    padding: 30px;
    margin-bottom: 30px;
    gap: 20px;
}

.device-meta {
    display: flex;
    align-items: center;
    gap: 20px;
}

.device-avatar {
    background: rgba(2, 139, 248, 0.15);
    border: 1px solid rgba(2, 139, 248, 0.3);
    color: var(--accent-blue);
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.device-details h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.45rem;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
}

/* Pulsing Badge */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.badge-active {
    background: rgba(76, 175, 80, 0.15);
    color: var(--success-color);
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background: var(--success-color);
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.7);
    animation: pulse 1.6s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(76, 175, 80, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(76, 175, 80, 0); }
}

.device-plan {
    border-left: 1px solid rgba(255, 255, 255, 0.08);
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0 30px;
}

.plan-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.plan-value {
    font-family: 'Outfit', sans-serif;
    font-size: 1.15rem;
    margin-bottom: 4px;
}

.plan-value i.golden {
    color: var(--accent-gold);
}

.plan-expiry {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.device-actions {
    display: flex;
    justify-content: flex-end;
}

/* --- Main Dashboard Grid --- */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2.7fr 1fr;
    gap: 30px;
    align-items: flex-start;
}

.playlists-panel {
    padding: 30px;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 20px;
}

.panel-header h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.panel-header .subtitle {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-left: 2px;
}

/* --- Playlist Table --- */
.table-container {
    overflow-x: auto;
    width: 100%;
}

.playlist-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.playlist-table th {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.playlist-table td {
    padding: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    vertical-align: middle;
}

.playlist-table tbody tr {
    transition: background var(--transition-speed);
}

.playlist-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* Playlist table specific cell stylings */
.pl-type-badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    display: inline-block;
}

.pl-type-m3u {
    background: rgba(2, 139, 248, 0.15);
    color: #40c4ff;
    border: 1px solid rgba(2, 139, 248, 0.3);
}

.pl-type-xtream {
    background: rgba(244, 67, 54, 0.15);
    color: #ff8a80;
    border: 1px solid rgba(244, 67, 54, 0.3);
}

.pl-url-cell {
    max-width: 250px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.actions-col {
    text-align: right;
}

.btn-icon {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: var(--border-radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin-left: 6px;
    transition: all var(--transition-speed);
}

.btn-icon:hover {
    color: var(--text-primary);
    transform: translateY(-1px);
}

.btn-icon-edit:hover {
    background: rgba(2, 139, 248, 0.15);
    border-color: var(--accent-blue);
    color: #40c4ff;
}

.btn-icon-refresh:hover {
    background: rgba(76, 175, 80, 0.15);
    border-color: var(--success-color);
    color: #81c784;
}

.btn-icon-delete:hover {
    background: rgba(244, 67, 54, 0.15);
    border-color: var(--primary-color);
    color: #ff8a80;
}

/* Empty Table State */
.empty-state {
    text-align: center;
    padding: 60px 0 !important;
}

.empty-icon {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.empty-state h4 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.15rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.empty-state p {
    color: var(--text-muted);
    max-width: 380px;
    margin: 0 auto;
    font-size: 0.85rem;
}

/* --- Sidebar --- */
.info-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-card {
    padding: 24px;
}

.info-card h4 {
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-card p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.info-card ul {
    list-style: none;
    margin-top: 10px;
}

.info-card ul li {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    position: relative;
    padding-left: 16px;
    line-height: 1.4;
}

.info-card ul li::before {
    content: "•";
    color: var(--primary-color);
    position: absolute;
    left: 4px;
    top: -1px;
    font-size: 1.1rem;
}


/* ==================== MODAL OVERLAY STYLING ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 5, 15, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-speed) ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-card {
    width: 100%;
    max-width: 580px;
    margin: 20px;
    padding: 30px;
    transform: scale(0.9);
    transition: transform var(--transition-speed) cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .modal-card {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 16px;
}

.modal-header h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color var(--transition-speed);
}

.btn-close:hover {
    color: var(--text-primary);
}

/* --- Form Fields Groups --- */
.form-fields-group {
    display: none;
}

.form-fields-group.active {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

.form-row {
    display: flex;
    gap: 20px;
}

.col-6 {
    flex: 1;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 20px;
}


/* ==================== TOAST SYSTEM ==================== */
.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 350px;
    width: 100%;
}

.toast {
    background: rgba(25, 14, 38, 0.9);
    backdrop-filter: blur(8px);
    border-left: 4px solid var(--accent-blue);
    border-radius: var(--border-radius-sm);
    padding: 16px 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.6);
    display: flex;
    gap: 12px;
    align-items: center;
    transform: translateX(120%);
    transition: transform var(--transition-speed) cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border-top: 1px solid rgba(255, 255, 255, 0.02);
    border-right: 1px solid rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

.toast.show {
    transform: translateX(0);
}

.toast-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 2px;
}

.toast-message {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.toast-success { border-left-color: var(--success-color); }
.toast-success .toast-icon { color: var(--success-color); }

.toast-error { border-left-color: var(--primary-color); }
.toast-error .toast-icon { color: var(--primary-color); }

.toast-info { border-left-color: var(--accent-blue); }
.toast-info .toast-icon { color: var(--accent-blue); }

.toast-warning { border-left-color: var(--accent-gold); }
.toast-warning .toast-icon { color: var(--accent-gold); }


/* ==================== ANIMATIONS UTILITIES ==================== */
.animate-fade-in {
    animation: fadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-slide-up {
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}


/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 992px) {
    .dashboard-header-panel {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 24px;
        justify-items: center;
    }
    
    .device-meta {
        flex-direction: column;
    }
    
    .device-plan {
        border-left: none;
        border-right: none;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        padding: 20px 0;
        width: 100%;
    }
    
    .device-actions {
        justify-content: center;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .main-header {
        flex-direction: column;
        gap: 16px;
        padding: 16px;
    }
    
    .login-card {
        padding: 24px;
    }
    
    .playlists-panel {
        padding: 20px;
    }
    
    .panel-header {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
    
    .action-area, .action-area .btn {
        width: 100%;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .playlist-table th:nth-child(3), 
    .playlist-table td:nth-child(3),
    .playlist-table th:nth-child(4), 
    .playlist-table td:nth-child(4) {
        display: none; /* Hide URL and date columns on mobile */
    }
}