/* ===== RESPONSIVE DESIGN ===== */

/* Tablet Landscape (1024px and down) */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-container {
        gap: var(--spacing-xl);
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
}

/* Tablet Portrait (768px and down) */
@media (max-width: 768px) {
    :root {
        --spacing-3xl: 3rem;
        --spacing-2xl: 2rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: var(--spacing-3xl);
        gap: var(--spacing-xl);
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        z-index: var(--z-dropdown);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-link {
        font-size: 1.125rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .hero-stats {
        justify-content: center;
        gap: var(--spacing-lg);
    }
    
    .hero-visual {
        order: -1;
    }
    
    .floating-card {
        display: none;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .events-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }
    
    .modal-content {
        width: 95%;
        margin: var(--spacing-md);
    }
    
    .notification {
        right: var(--spacing-md);
        left: var(--spacing-md);
        max-width: none;
    }
}

/* Mobile Large (480px and down) */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .nav {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .nav-title {
        font-size: 1rem;
    }
    
    .nav-logo {
        height: 32px;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .btn-large {
        padding: var(--spacing-md);
        font-size: 0.875rem;
    }
    
    .hero-stats {
        gap: var(--spacing-md);
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .section {
        padding: var(--spacing-2xl) 0;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    .feature-card {
        padding: var(--spacing-md);
    }
    
    .organizer-card {
        padding: var(--spacing-lg);
    }
    
    .avatar-img {
        width: 100px;
        height: 100px;
    }
    
    .event-card {
        margin: 0 var(--spacing-sm);
    }
    
    .partners-grid {
        grid-template-columns: 1fr;
    }
    
    .partner-card {
        padding: var(--spacing-lg);
    }
    
    .partners-cta {
        padding: var(--spacing-xl);
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .form-input,
    .form-textarea,
    .form-select {
        padding: var(--spacing-sm);
    }
    
    .modal-header,
    .modal-body {
        padding: var(--spacing-md);
    }
    
    .footer {
        padding: var(--spacing-xl) 0 var(--spacing-md);
    }
    
    .footer-brand {
        gap: var(--spacing-sm);
    }
    
    .social-links {
        justify-content: center;
    }
}

/* Mobile Small (360px and down) */
@media (max-width: 360px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .hero-actions {
        width: 100%;
    }
    
    .btn-large {
        width: 100%;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .stat {
        padding: var(--spacing-sm);
        background: rgba(255, 255, 255, 0.8);
        border-radius: var(--radius-md);
    }
    
    .events-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .event-card {
        margin: 0;
    }
    
    .notification {
        top: 80px;
        right: var(--spacing-sm);
        left: var(--spacing-sm);
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero-img,
    .avatar-img,
    .partner-logo {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Landscape Orientation on Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: var(--spacing-xl) 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-actions {
        flex-direction: row;
        gap: var(--spacing-md);
    }
    
    .nav-menu {
        height: calc(100vh - 60px);
        padding-top: var(--spacing-lg);
    }
}

/* Reduced Motion Preference */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating-card {
        animation: none;
    }
    
    .skeleton-card,
    .skeleton-partner {
        animation: none;
        background: #f0f0f0;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #e8eaed;
        --text-secondary: #9aa0a6;
        --text-light: #80868b;
        --background-primary: #202124;
        --background-secondary: #303134;
        --border-color: #5f6368;
        --shadow-light: rgba(0, 0, 0, 0.3);
        --shadow-medium: rgba(0, 0, 0, 0.4);
        --shadow-heavy: rgba(0, 0, 0, 0.5);
    }
    
    .header {
        background: rgba(32, 33, 36, 0.95);
        border-bottom-color: var(--border-color);
    }
    
    .hero {
        background: linear-gradient(135deg, #202124 0%, #303134 100%);
    }
    
    .feature-card,
    .event-card,
    .partner-card,
    .organizer-card,
    .partners-cta,
    .modal-content {
        background: var(--background-secondary);
        color: var(--text-primary);
    }
    
    .form-input,
    .form-textarea,
    .form-select {
        background: var(--background-secondary);
        border-color: var(--border-color);
        color: var(--text-primary);
    }
    
    .notification {
        background: var(--background-secondary);
        color: var(--text-primary);
    }
}

/* Print Styles */
@media print {
    .header,
    .nav-toggle,
    .hero-actions,
    .events-actions,
    .partners-cta,
    .contact-form,
    .modal,
    .notification {
        display: none !important;
    }
    
    .hero {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
        page-break-inside: avoid;
    }
    
    .event-card,
    .partner-card {
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid var(--border-color);
    }
    
    a {
        text-decoration: underline;
    }
    
    a[href^="http"]:after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: var(--text-light);
    }
}