/* ============================================================================
   MOBILE ENHANCEMENTS & SCROLL-DOWN BUTTON
   ============================================================================ */

/* Scroll Down Button */
.scroll-down-btn {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--primary, #17439c);
    padding: 12px 16px;
    margin: 0 8px;
    border-radius: 8px;
    transition: all 250ms ease;
    font-family: inherit;
    position: relative;
    animation: fadeInDown 0.6s ease-out;
    min-height: 44px;
    min-width: 44px;
    touch-action: manipulation;
}

@media (max-width: 768px) {
    .scroll-down-btn {
        display: flex;
    }
}

.scroll-down-text {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
    white-space: nowrap;
}

.scroll-down-icon {
    width: 16px;
    height: 16px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(4px);
    }
}

.scroll-down-btn:hover {
    background: rgba(23, 67, 156, 0.08);
    color: var(--primary, #17439c);
    transform: scale(1.05);
}

.scroll-down-btn:active {
    transform: scale(0.95);
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================================
   ENHANCED MOBILE RESPONSIVENESS
   ============================================================================ */

/* Mobile Typography Scaling */
@media (max-width: 640px) {
    html {
        font-size: 14px;
    }
    
    body {
        font-size: 14px;
    }
    
    h1 {
        font-size: clamp(1.5rem, 5vw, 2.5rem) !important;
    }
    
    h2 {
        font-size: clamp(1.2rem, 4vw, 2rem) !important;
    }
    
    h3 {
        font-size: clamp(1rem, 3.5vw, 1.5rem) !important;
    }
    
    .container {
        padding: 0 12px;
    }
}

/* Mobile Header Improvements */
@media (max-width: 768px) {
    .app-header {
        position: sticky;
        top: 0;
        z-index: 1000;
    }
    
    .header-main {
        gap: 8px;
        padding: 10px 0;
    }
    
    .brand-logo {
        height: 32px;
        width: auto;
    }
    
    .brand-text {
        font-size: 1.1rem;
    }
    
    .nav-toggle {
        width: 44px;
        height: 44px;
    }
    
    .main-nav {
        position: fixed;
        left: 0;
        top: 0;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
        z-index: 999;
        flex-direction: column;
        padding: 80px 0 20px;
        gap: 0;
        overflow-y: auto;
        box-shadow: 8px 0 24px rgba(59, 130, 246, 0.2);
    }
    
    .main-nav a {
        display: block;
        padding: 18px 24px;
        border-radius: 0;
        background: transparent;
        font-weight: 600;
        font-size: 1.05rem;
        color: white;
        border-left: 4px solid transparent;
        transition: all 0.3s ease;
        position: relative;
    }
    
    .main-nav a:hover {
        background: rgba(255, 255, 255, 0.1);
        border-left-color: white;
        padding-left: 28px;
    }
    
    .main-nav a:active,
    .main-nav a.active {
        background: rgba(255, 255, 255, 0.2);
        border-left-color: #fff;
        padding-left: 28px;
    }
    
    .header-actions {
        gap: 8px;
    }
    
    .header-actions .button {
        padding: 12px 16px;
        font-size: 0.9rem;
        min-height: 44px;
        min-width: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
}

/* Mobile Button Improvements */
@media (max-width: 768px) {
    .button {
        padding: 12px 16px !important;
        min-height: 44px;
        min-width: 44px;
        border-radius: 8px !important;
        font-size: 0.95rem;
        font-weight: 600;
        touch-action: manipulation;
    }
    
    .button-primary {
        width: 100%;
        margin-bottom: 8px;
        min-height: 44px !important;
    }
    
    .button:active {
        transform: scale(0.98);
    }
}

/* Mobile Form Improvements */
@media (max-width: 768px) {
    input,
    select,
    textarea {
        min-height: 44px;
        font-size: 16px;
        padding: 12px 14px;
        border-radius: 8px;
        border: 1.5px solid var(--border, #d7e2ee);
        font-family: inherit;
    }
    
    input:focus,
    select:focus,
    textarea:focus {
        outline: none;
        border-color: var(--primary, #17439c);
        box-shadow: 0 0 0 3px rgba(23, 67, 156, 0.1);
    }
    
    label {
        display: block;
        margin-bottom: 8px;
        font-weight: 600;
        font-size: 0.95rem;
    }
    
    .form-group {
        margin-bottom: 16px;
    }
}

/* Mobile Image Optimization */
@media (max-width: 768px) {
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    
    .img-responsive {
        width: 100% !important;
        height: auto !important;
    }
}

/* Mobile Cards Improvements */
@media (max-width: 768px) {
    .card,
    .featured-item,
    .listing-card,
    .step-card,
    .section-card {
        border-radius: 12px !important;
        margin-bottom: 12px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.08) !important;
    }
    
    .featured-item a:hover {
        transform: translateY(-2px);
    }
    
    .listing-card:hover {
        transform: translateY(-2px) !important;
    }
}

/* Mobile Grid Improvements */
@media (max-width: 768px) {
    .grid,
    .featured-track,
    .steps-grid {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
    }
    
    .listings-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px !important;
    }
    
    .section-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }
}

/* Mobile Navigation Improvements */
@media (max-width: 768px) {
    .pagination {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        justify-content: center;
    }
    
    .pagination-item {
        min-width: 36px;
        height: 36px;
        padding: 8px;
        font-size: 0.85rem;
        border-radius: 6px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* Mobile Hero Section */
@media (max-width: 768px) {
    .search-hero-big {
        padding: 20px 0 24px;
    }
    
    .search-center {
        padding: 0 16px;
    }
    
    .search-form-giant {
        flex-direction: column;
        gap: 12px;
        background: transparent !important;
        backdrop-filter: none !important;
        padding: 0 !important;
        box-shadow: none !important;
        border-radius: 0 !important;
    }
    
    .search-giant {
        width: 100%;
        padding: 12px 14px;
        font-size: 16px;
        border-radius: 8px;
        min-height: 44px;
    }
    
    .search-giant-btn {
        width: 100%;
        min-height: 44px;
    }
    
    .search-keywords {
        flex-direction: column;
        gap: 12px;
    }
    
    .rotating-keywords {
        width: 100%;
        text-align: center;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 12px 0;
    }
    
    .keywords-list {
        flex-wrap: wrap;
        gap: 8px;
        justify-content: center;
    }
    
    .keyword-pill {
        padding: 12px 16px;
        font-size: 0.85rem;
        min-height: 44px;
        min-width: 44px;
    }
}

/* Mobile Modals & Overlays */
@media (max-width: 768px) {
    .modal,
    .dropdown,
    .popover {
        max-height: 90vh;
        overflow-y: auto;
        border-radius: 16px 16px 0 0;
    }
}

/* Mobile Touch Improvements */
@media (hover: none) and (pointer: coarse) {
    /* Touch devices */
    a,
    button {
        min-height: 44px;
        min-width: 44px;
    }
    
    .button {
        padding: 12px 16px !important;
    }
    
    /* Remove hover effects on touch, but keep active */
    a:hover,
    button:hover {
        background: inherit;
        transform: none;
    }
    
    a:active,
    button:active {
        opacity: 0.7;
    }
}

/* Mobile Viewport Fixes */
@media (max-width: 480px) {
    body {
        font-size: 13px;
    }
    
    .container {
        padding: 0 10px;
    }
    
    .header-main {
        padding: 8px 0;
    }
    
    h1 {
        font-size: clamp(1.3rem, 6vw, 2rem) !important;
    }
    
    h2 {
        font-size: clamp(1rem, 5vw, 1.5rem) !important;
    }
    
    .section-card {
        padding: 16px !important;
    }
    
    .button {
        padding: 10px 14px !important;
        font-size: 0.9rem;
    }
}

/* Mobile Safe Area Support */
@supports (padding: max(0px)) {
    .app-header,
    .topbar {
        padding-left: max(16px, env(safe-area-inset-left));
        padding-right: max(16px, env(safe-area-inset-right));
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-down-icon {
        animation: none !important;
    }
}

/* Print Styles */
@media print {
    .app-header,
    .scroll-down-btn,
    .nav-toggle,
    .button,
    .pagination {
        display: none !important;
    }
    
    body {
        background: white;
        font-size: 12pt;
    }
}