/* Responsive Styles */

/* XS - Extra Small Devices */
@media (max-width: 575.98px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .features-grid,
    .recommendations-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .training-options {
        flex-direction: column;
    }
    
    .hero-section {
        padding: var(--space-lg) var(--space-sm);
    }
    
    .piano-keyboard {
        height: 120px;
    }
    
    .piano-key {
        font-size: 12px;
    }
    
    .black-key {
        font-size: 10px;
    }
    
    .modal-content {
        margin: 20% auto;
        padding: var(--space-md);
    }
    
    .share-buttons {
        grid-template-columns: 1fr;
    }
}

/* SM - Small Devices */
@media (min-width: 576px) and (max-width: 767.98px) {
    .features-grid,
    .recommendations-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modal-content {
        margin: 15% auto;
    }
}

/* MD - Medium Devices */
@media (min-width: 768px) and (max-width: 991.98px) {
    .features-grid,
    .recommendations-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* LG - Large Devices and up */
@media (min-width: 992px) {
    .hero-section {
        flex-direction: row;
        text-align: left;
        justify-content: center;
        gap: var(--space-xl);
    }
    
    .hero-image {
        margin-top: 0;
    }
    
    .hero-buttons {
        flex-direction: row;
    }
    
    .main-nav {
        display: block;
    }
    
    .hamburger-menu {
        display: none;
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .training-controls {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .training-options {
        width: auto;
    }
    
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .footer-links {
        flex-grow: 1;
        justify-content: flex-end;
        margin-left: var(--space-xl);
    }
}

/* Sidebar Toggle for responsive design */
@media (min-width: 992px) {
    .sidebar {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: var(--sidebar-width);
        height: calc(100% - var(--header-height));
        transform: translateX(0);
        transition: transform var(--transition-normal);
        box-shadow: none;
        border-right: var(--border-width) solid var(--border-color);
    }
    
    .sidebar-header {
        display: none;
    }
    
    .main-content {
        margin-left: var(--sidebar-width);
    }
    
    .header-inner,
    .footer-content,
    .footer-bottom {
        padding-left: calc(var(--sidebar-width) + var(--space-md));
    }
    
    body.sidebar-closed .sidebar {
        transform: translateX(-100%);
    }
    
    body.sidebar-closed .main-content,
    body.sidebar-closed .header-inner,
    body.sidebar-closed .footer-content,
    body.sidebar-closed .footer-bottom {
        margin-left: 0;
        padding-left: var(--space-md);
    }
}

/* Mobile specific adjustments */
@media (max-width: 991.98px) {
    body {
        padding-bottom: env(safe-area-inset-bottom);
    }
    
    .header {
        padding-top: env(safe-area-inset-top);
    }
    
    .sidebar {
        padding-top: calc(env(safe-area-inset-top) + var(--space-md));
        padding-bottom: env(safe-area-inset-bottom);
    }
}

/* Print styles */
@media print {
    .header,
    .sidebar,
    .footer,
    .modal,
    .pwa-prompt,
    .hero-section,
    .features-section,
    .recommendations-section,
    .share-results,
    .header-controls {
        display: none;
    }
    
    .main-content {
        margin: 0;
        padding: 0;
    }
    
    .training-section {
        page-break-inside: avoid;
        border: 1px solid #ddd;
    }
    
    body {
        background-color: white;
        color: black;
    }
    
    a {
        text-decoration: none;
        color: black;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    body.theme-auto {
        --text-color: #f5f5f5;
        --text-light: #bbbbbb;
        --bg-color: #121212;
        --bg-light: #1e1e1e;
        --bg-dark: #2a2a2a;
        --border-color: #444444;
    }
    
    body.theme-auto .piano-keyboard {
        background-color: #1e1e1e;
    }
    
    body.theme-auto .white-key {
        background-color: #f0f0f0;
        border-color: #ccc;
        color: #333;
    }
    
    body.theme-auto .black-key {
        background-color: #111;
        color: #f0f0f0;
    }
    
    body.theme-auto .piano-key:hover {
        background-color: var(--primary-light);
        color: white;
    }
}