/*
FILE: app/static/css/responsive.css
DESCRIPTION: Responsive design styles for DevHub
DEVELOPER: DevHub.com
*/

/* ===== Mobile First - Base ===== */
/* Base styles are mobile-first, see main CSS */

/* ===== Small Mobile (max-width: 480px) ===== */
@media (max-width: 480px) {
    /* Typography */
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.3rem; }
    h3 { font-size: 1.1rem; }
    
    /* Container */
    .container {
        padding: 0 12px;
    }
    
    /* Hero */
    .hero-section {
        padding: 100px 0 40px;
    }
    .hero-title {
        font-size: 2rem;
    }
    .hero-description {
        font-size: 1rem;
    }
    .hero-stats {
        flex-direction: column;
        gap: 12px;
    }
    .stat-number {
        font-size: 1.5rem;
    }
    
    /* Project Grid */
    .project-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .featured-grid {
        grid-template-columns: 1fr;
    }
    
    /* Filters */
    .filters-container {
        padding: 16px;
    }
    .filter-btn {
        font-size: 0.75rem;
        padding: 6px 12px;
    }
    
    /* Auth */
    .auth-card {
        padding: 20px;
    }
    .auth-form .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    /* Admin Stats */
    .admin-stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    .admin-stat-card {
        padding: 14px;
    }
    .admin-stat-card .stat-number {
        font-size: 1.3rem;
    }
    
    /* Tables - Horizontal Scroll */
    .admin-table-container {
        overflow-x: auto;
    }
    .admin-table {
        font-size: 0.75rem;
        min-width: 600px;
    }
    .admin-table th,
    .admin-table td {
        padding: 6px 10px;
    }
    
    /* Buttons */
    .btn {
        padding: 8px 14px;
        font-size: 0.85rem;
        min-height: 38px;
    }
    .btn-lg {
        padding: 10px 20px;
        font-size: 0.95rem;
    }
    
    /* Forms */
    .form-control {
        padding: 10px 12px;
        font-size: 0.9rem;
    }
    .form-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    /* Footer */
    .footer {
        padding: 40px 0 20px;
    }
    .footer-grid {
        gap: 24px;
    }
    
    /* Dashboard */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    /* User Profile */
    .profile-grid {
        grid-template-columns: 1fr;
    }
    .user-profile-card .profile-header {
        flex-direction: column;
        text-align: center;
    }
    .user-profile-card .profile-stats {
        grid-template-columns: 1fr 1fr;
    }
}

/* ===== Mobile (max-width: 768px) ===== */
@media (max-width: 768px) {
    /* Navigation */
    .nav-toggle {
        display: flex;
    }
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
        padding: 16px 20px;
        max-height: 80vh;
        overflow-y: auto;
    }
    .nav-menu.active {
        display: block;
    }
    .nav-links {
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
    }
    .nav-links .nav-link {
        padding: 10px 16px;
    }
    .dropdown-menu {
        position: static;
        border: none;
        box-shadow: none;
        margin-top: 4px;
        padding-left: 20px;
        background: transparent;
    }
    
    /* Hero */
    .hero-title {
        font-size: 2.2rem;
    }
    .hero-stats {
        gap: 24px;
    }
    
    /* Project Grid */
    .project-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
    .featured-grid {
        grid-template-columns: 1fr;
    }
    
    /* About */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .features-list {
        grid-template-columns: 1fr;
    }
    
    /* Donate */
    .donate-container {
        grid-template-columns: 1fr;
    }
    .donate-info {
        order: -1;
    }
    
    /* Collaboration */
    .collaboration-section {
        padding: 20px;
    }
    .collaboration-form .form-row {
        grid-template-columns: 1fr;
    }
    
    /* Admin */
    .admin-charts {
        grid-template-columns: 1fr;
    }
    .admin-recent {
        grid-template-columns: 1fr;
    }
    .user-detail-grid {
        grid-template-columns: 1fr;
    }
    .backup-grid {
        grid-template-columns: 1fr;
    }
    
    /* Dashboard */
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .referral-card {
        flex-direction: column;
        align-items: stretch;
    }
    .referral-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    /* Profile */
    .profile-grid {
        grid-template-columns: 1fr;
    }
    .profile-sidebar {
        order: -1;
    }
    
    /* Learning */
    .progress-overview {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    .project-item {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    .project-progress {
        width: 100%;
    }
    
    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
}

/* ===== Tablet (max-width: 1024px) ===== */
@media (max-width: 1024px) {
    /* Project Grid */
    .project-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    }
    .featured-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    /* Admin */
    .admin-stats-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    .admin-charts {
        grid-template-columns: 1fr 1fr;
    }
    
    /* Filter Form */
    .filter-form {
        flex-wrap: wrap;
    }
    .filter-group {
        min-width: 120px;
        flex: 1 1 auto;
    }
    
    /* Dashboard */
    .stats-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }
}

/* ===== Laptop (max-width: 1280px) ===== */
@media (max-width: 1280px) {
    .container {
        max-width: 1100px;
    }
    
    .project-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

/* ===== Desktop (min-width: 1281px) ===== */
@media (min-width: 1281px) {
    .container {
        max-width: 1280px;
    }
    
    .project-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .featured-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== Large Desktop (min-width: 1600px) ===== */
@media (min-width: 1600px) {
    .container {
        max-width: 1440px;
    }
    
    .project-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .featured-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== Print Styles ===== */
@media print {
    .navbar,
    .footer,
    .hero-particles,
    .filter-form,
    .pagination,
    .btn,
    .action-buttons,
    .no-print {
        display: none !important;
    }
    
    body {
        background: #fff;
        color: #000;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    .project-card {
        border: 1px solid #ddd;
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    .admin-table-container {
        overflow: visible;
    }
}

/* ===== Dark Mode Toggle (Optional) ===== */
.dark-mode-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    background: var(--surface);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.dark-mode-toggle:hover {
    border-color: var(--primary);
}

.dark-mode-toggle .toggle-track {
    width: 40px;
    height: 22px;
    border-radius: 12px;
    background: var(--border);
    position: relative;
    transition: all var(--transition);
}

.dark-mode-toggle .toggle-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--text-primary);
    position: absolute;
    top: 2px;
    left: 2px;
    transition: all var(--transition);
}

.dark-mode-toggle.active .toggle-track {
    background: var(--primary);
}

.dark-mode-toggle.active .toggle-thumb {
    transform: translateX(18px);
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===== Focus Styles ===== */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ===== High Contrast ===== */
@media (prefers-contrast: high) {
    .btn-primary {
        background: #0055FF;
    }
    .btn-outline {
        border-color: #FFFFFF;
        color: #FFFFFF;
    }
    .badge {
        border: 1px solid currentColor;
    }
}

/* END OF FILE - Signed DevHub.com */