/* ===================================================================
   404 DEEP RECORDS - Responsive Stylesheet
   Mobile-first breakpoints for all components
   =================================================================== */

/* ===== MOBILE NAVIGATION SYSTEM ===== */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary, #fff);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
    transition: transform 0.3s ease;
}
.mobile-menu-toggle.active {
    transform: rotate(90deg);
}

/* Mobile nav overlay */
.main-nav.mobile-open {
    display: flex !important;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary, #0a0a0a);
    z-index: 1000;
    padding: 80px 30px 30px;
    gap: 0;
    animation: slideInNav 0.3s ease;
    overflow-y: auto;
}
.main-nav.mobile-open a {
    font-size: 1.3rem;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: block;
    width: 100%;
}
.main-nav.mobile-open a:last-child {
    border-bottom: none;
}

@keyframes slideInNav {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== LARGE DESKTOP (max-width: 1400px) ===== */
@media (max-width: 1400px) {
    .container { max-width: 1140px; }
    .stats-grid.stats-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ===== DESKTOP (max-width: 1200px) ===== */
@media (max-width: 1200px) {
    .container { max-width: 960px; }
    .hero h1, .hero-content h1 { font-size: 3rem; }
    .track-grid, .tracks-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
    .shop-layout { grid-template-columns: 240px 1fr; gap: 24px; }
    .checkout-layout { grid-template-columns: 1fr 360px; }
    .dashboard-grid-2 { grid-template-columns: 1fr 1fr; }
}

/* ===== TABLET (max-width: 1024px) ===== */
@media (max-width: 1024px) {
    .container { padding: 0 20px; }

    /* Show mobile menu toggle */
    .mobile-menu-toggle { display: block; }
    .main-nav { display: none; }

    /* Hero */
    .hero h1, .hero-content h1 { font-size: 2.5rem; }
    .hero p, .hero-content p { font-size: 1rem; }
    .hero { min-height: 60vh; }

    /* Grids */
    .track-grid, .tracks-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
    .genres-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .blog-grid { grid-template-columns: repeat(2, 1fr); }

    /* Shop */
    .shop-layout { grid-template-columns: 1fr; }
    .shop-sidebar { position: static; display: none; }
    .shop-sidebar.open { display: block; }
    .filter-toggle-btn { display: block; }

    /* Checkout */
    .checkout-layout { grid-template-columns: 1fr; gap: 24px; }
    .cart-layout { grid-template-columns: 1fr; }

    /* Footer */
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }

    /* Seller Dashboard */
    .stats-grid.stats-4 { grid-template-columns: repeat(2, 1fr); }
    .stats-grid.stats-3 { grid-template-columns: repeat(3, 1fr); }
    .dashboard-grid-2 { grid-template-columns: 1fr; }

    /* Tables */
    .seller-table { font-size: 0.85rem; }
    .seller-table th, .seller-table td { padding: 10px 8px; }

    /* Contact */
    .contact-grid { grid-template-columns: 1fr; }

    /* Track Detail */
    .track-detail-layout { grid-template-columns: 1fr; gap: 24px; }
}

/* ===== MOBILE LANDSCAPE (max-width: 768px) ===== */
@media (max-width: 768px) {
    body { font-size: 15px; }

    /* Header */
    .main-header .container { padding: 0 16px; }
    .logo img { height: 32px; }

    /* Hero */
    .hero h1, .hero-content h1 { font-size: 2rem; line-height: 1.2; }
    .hero p, .hero-content p { font-size: 0.95rem; }
    .hero { min-height: 50vh; padding: 60px 0; }
    .hero-buttons { flex-direction: column; gap: 12px; }
    .hero-buttons .btn { width: 100%; text-align: center; }

    /* Sections */
    section { padding: 40px 0; }
    .section-title, h2 { font-size: 1.6rem; }

    /* Genres */
    .genres-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .genre-card { padding: 20px 12px; }

    /* Track Grid */
    .track-grid, .tracks-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .track-card { border-radius: 8px; }

    /* Blog */
    .blog-grid { grid-template-columns: 1fr; }

    /* Footer */
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .footer-col { margin-bottom: 24px; }

    /* Stats */
    .stats-grid.stats-4 { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .stats-grid.stats-3 { grid-template-columns: 1fr; gap: 12px; }
    .stat-card { padding: 16px; }
    .stat-card span { font-size: 1.5rem; }

    /* Dashboard */
    .dashboard-header { flex-direction: column; gap: 12px; align-items: flex-start; }
    .dashboard-header h1 { font-size: 1.4rem; }
    .quick-actions { flex-wrap: wrap; gap: 8px; }
    .quick-actions .btn { flex: 1; min-width: 140px; font-size: 0.85rem; }

    /* Forms */
    .form-grid { grid-template-columns: 1fr; }
    .form-group.full { grid-column: 1; }
    .form-control { font-size: 16px; /* Prevents iOS zoom */ }

    /* Tables - Responsive scroll */
    .tracks-table-wrap, .table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .seller-table { min-width: 600px; }

    /* Checkout */
    .checkout-summary { order: 2; }
    .checkout-payment { order: 1; }
    .payment-options { grid-template-columns: 1fr; }

    /* Reviews */
    .review-card { padding: 16px; }
    .review-card-header { flex-direction: column; gap: 8px; }
    .star-input label { font-size: 1.5rem; }

    /* Buttons */
    .btn-lg { padding: 14px 24px; font-size: 1rem; }
    .btn-block { width: 100%; }

    /* Alerts */
    .alert { font-size: 0.9rem; padding: 12px 16px; }

    /* Seller */
    .payout-balance-card { flex-direction: column; gap: 16px; }
    .commission-info-card { flex-direction: column; gap: 16px; }
    .commission-breakdown { grid-template-columns: 1fr; }

    /* Upload form */
    .upload-form .form-grid { grid-template-columns: 1fr; }
    .file-upload-box { padding: 20px; }

    /* Admin tables on mobile */
    .admin-table-wrap { overflow-x: auto; }

    /* Online Radio */
    .radio-player { padding: 16px; }
    .radio-controls { flex-direction: column; gap: 12px; }
}

/* ===== MOBILE PORTRAIT (max-width: 480px) ===== */
@media (max-width: 480px) {
    body { font-size: 14px; }

    .container { padding: 0 12px; }

    /* Header */
    .main-header { padding: 12px 0; }
    .logo img { height: 28px; }
    .cart-icon { font-size: 1.1rem; }
    .cart-count { font-size: 0.65rem; width: 16px; height: 16px; }

    /* Hero */
    .hero h1, .hero-content h1 { font-size: 1.6rem; }
    .hero p, .hero-content p { font-size: 0.85rem; }
    .hero { min-height: 45vh; padding: 40px 0; }

    /* Sections */
    section { padding: 30px 0; }
    .section-title, h2 { font-size: 1.3rem; }

    /* Genres */
    .genres-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
    .genre-card { padding: 16px 8px; font-size: 0.85rem; }

    /* Track Grid - Single column on very small */
    .track-grid, .tracks-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .track-card .track-info h3 { font-size: 0.85rem; }
    .track-card .track-footer { padding: 8px 10px; }

    /* Stats */
    .stats-grid.stats-4, .stats-grid.stats-3 { grid-template-columns: 1fr 1fr; gap: 8px; }
    .stat-card { padding: 12px; }
    .stat-card i { font-size: 1.2rem; }
    .stat-card span { font-size: 1.2rem; }
    .stat-card small { font-size: 0.7rem; }

    /* Dashboard */
    .dashboard-header h1 { font-size: 1.2rem; }
    .quick-actions .btn { font-size: 0.75rem; padding: 8px 12px; min-width: 100px; }

    /* Buttons */
    .btn { padding: 10px 16px; font-size: 0.85rem; }
    .btn-lg { padding: 12px 20px; font-size: 0.9rem; }

    /* Sale items */
    .sale-item { flex-direction: column; gap: 8px; text-align: center; }
    .sale-thumb { width: 50px; height: 50px; }

    /* Reviews */
    .review-card { padding: 12px; }
    .reviewer-avatar { width: 32px; height: 32px; font-size: 0.8rem; }

    /* Checkout */
    .checkout-item { flex-direction: column; gap: 8px; text-align: center; }
    .checkout-item-img { width: 60px; height: 60px; }

    /* Page title */
    .page-title { font-size: 1.4rem; }

    /* Footer */
    .main-footer { padding: 30px 0 20px; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

    /* FAQ */
    .faq-question { font-size: 0.9rem; padding: 14px 16px; }
    .faq-answer { padding: 0 16px 14px; }

    /* Newsletter */
    .newsletter-form { flex-direction: column; gap: 8px; }
    .newsletter-form input { width: 100%; }
    .newsletter-form .btn { width: 100%; }

    /* Flash messages */
    .flash-message { font-size: 0.85rem; }

    /* Pending card */
    .pending-card { padding: 30px 16px; }
    .pending-icon i { font-size: 3rem; }

    /* Empty state */
    .empty-state { padding: 30px 16px; }
    .empty-state i { font-size: 2.5rem; }
    .empty-state h3 { font-size: 1.1rem; }
}

/* ===== TOUCH OPTIMIZATIONS ===== */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    .btn { min-height: 44px; min-width: 44px; }
    .main-nav.mobile-open a { min-height: 48px; display: flex; align-items: center; }
    .mobile-menu-toggle { min-width: 44px; min-height: 44px; display: flex; align-items: center; justify-content: center; }
    .form-control { min-height: 44px; }
    select.form-control { min-height: 44px; }

    /* Remove hover effects on touch */
    .track-card:hover { transform: none; }
    .genre-card:hover { transform: none; }
    .btn:hover { transform: none; }

    /* Active states instead */
    .track-card:active { transform: scale(0.98); }
    .genre-card:active { transform: scale(0.97); }
    .btn:active { transform: scale(0.97); opacity: 0.9; }
}

/* ===== PRINT STYLES ===== */
@media print {
    .main-header, .main-footer, .mobile-menu-toggle, .flash-message, .btn { display: none !important; }
    body { background: #fff; color: #000; }
    .container { max-width: 100%; }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .main-nav.mobile-open { animation: none; }
}

/* ===== LANDSCAPE ORIENTATION FIX ===== */
@media (max-height: 500px) and (orientation: landscape) {
    .hero { min-height: auto; padding: 30px 0; }
    .hero h1, .hero-content h1 { font-size: 1.5rem; }
    .main-nav.mobile-open { padding-top: 60px; }
    .main-nav.mobile-open a { padding: 10px 0; font-size: 1rem; }
}

/* ===== ADMIN PANEL RESPONSIVE ===== */
@media (max-width: 1024px) {
    .admin-sidebar { display: none; }
    .admin-sidebar.open { display: block; position: fixed; z-index: 999; width: 260px; }
    .admin-content { margin-left: 0; }
    .admin-header .sidebar-toggle { display: block; }
}
@media (max-width: 768px) {
    .admin-stats { grid-template-columns: repeat(2, 1fr); }
    .admin-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .admin-actions { flex-direction: column; gap: 8px; }
}
@media (max-width: 480px) {
    .admin-stats { grid-template-columns: 1fr; }
    .admin-header h1 { font-size: 1.2rem; }
}

/* ===== SAFE AREA (NOTCH DEVICES) ===== */
@supports (padding: env(safe-area-inset-top)) {
    .main-header { padding-top: env(safe-area-inset-top); }
    .main-footer { padding-bottom: env(safe-area-inset-bottom); }
    .main-nav.mobile-open { padding-top: calc(80px + env(safe-area-inset-top)); }
}