/* Custom Styles for Ultimate Tools Hub */

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* Accessibility - Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.sr-only:focus {
    position: static;
    width: auto;
    height: auto;
    padding: 1rem;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* AdSense Container Styling - Enhanced */
.adsbygoogle {
    display: block;
    min-height: 90px;
    margin: 1rem auto;
    background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.adsbygoogle:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* Ad Label Styling */
[data-ad-client]::before {
    font-size: 10px;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Sticky Sidebar Ad Animation */
#sticky-sidebar-ad {
    animation: slideInRight 0.5s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Hide sticky ad on scroll up */
#sticky-sidebar-ad.hidden-ad {
    transform: translateX(400px);
    opacity: 0;
    pointer-events: none;
}

/* Responsive Ad Containers */
@media (max-width: 768px) {
    .adsbygoogle {
        min-height: 50px;
    }
    
    #sticky-sidebar-ad {
        display: none !important;
    }
}

/* Ad Loading State */
.adsbygoogle[data-ad-status="unfilled"] {
    display: none !important;
}

/* Native Ad Styling for Better Integration */
ins.adsbygoogle[data-ad-format="fluid"] {
    background: transparent;
    border: none;
    box-shadow: none;
}

/* Smooth Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.float-animation {
    animation: float 3s ease-in-out infinite;
}

/* Animated Gradient Background */
@keyframes gradient-shift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.animated-gradient {
    background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #4facfe);
    background-size: 400% 400%;
    animation: gradient-shift 15s ease infinite;
}

/* Glassmorphism Effect */
.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Shine Effect on Hover */
.shine-effect {
    position: relative;
    overflow: hidden;
}

.shine-effect::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        to bottom right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.1) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    transform: rotate(45deg);
    transition: all 0.6s;
}

.shine-effect:hover::after {
    left: 100%;
}

/* Pulse Animation for CTAs */
@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(59, 130, 246, 0);
    }
}

.pulse-animation {
    animation: pulse 2s infinite;
}

/* 3D Card Tilt Effect */
.card-3d {
    transform-style: preserve-3d;
    transition: transform 0.5s;
}

.card-3d:hover {
    transform: rotateY(5deg) rotateX(5deg) scale(1.05);
}

/* Header Styles */
header {
    transition: all 0.3s ease;
}

header.scrolled {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Navigation Improvements */
nav a {
    position: relative;
    transition: all 0.3s ease;
}

nav a:hover {
    transform: translateY(-2px);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, #3b82f6, #8b5cf6);
    transition: width 0.3s ease;
}

nav a:hover::after {
    width: 100%;
}

/* Card Hover Effects */
.card-hover {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-hover:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Button Enhancements */
.btn-primary {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Section Spacing */
section {
    scroll-margin-top: 80px;
}

/* Loading State for Images */
img {
    transition: opacity 0.3s ease;
}

img[loading="lazy"] {
    opacity: 0;
}

img.loaded {
    opacity: 1;
}

/* Responsive Tables */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #3b82f6, #8b5cf6);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #2563eb, #7c3aed);
}

/* Back to Top Button */
#back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

#back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
}

#back-to-top.show {
    display: flex;
}

/* Footer Styles */
footer {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
}

footer a:hover {
    color: #60a5fa;
    transform: translateX(5px);
}

/* Print Styles */
@media print {
    header,
    footer,
    .adsbygoogle,
    #back-to-top,
    #mobile-menu-btn {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
    
    a[href]:after {
        content: " (" attr(href) ")";
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    body {
        background: #ffffff;
        color: #000000;
    }
    
    a {
        text-decoration: underline;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    /* Can be enabled for dark mode support */
    /*
    body {
        background: #1a202c;
        color: #e2e8f0;
    }
    */
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    body {
        font-size: 16px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
    
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    #back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

/* Tablet Optimizations */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

/* Desktop Large Screens */
@media (min-width: 1920px) {
    .container {
        max-width: 1600px;
    }
}

/* Focus Styles for Accessibility */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 3px solid #3b82f6;
    outline-offset: 2px;
}

/* Skip Link Styles */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #3b82f6;
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Loading Spinner */
.spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-left-color: #3b82f6;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Tooltip Styles */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 12px;
    background: #1f2937;
    color: white;
    font-size: 14px;
    white-space: nowrap;
    border-radius: 6px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.tooltip:hover::after {
    opacity: 1;
}

/* Badge Styles */
.badge {
    display: inline-block;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Grid Gap Fix for Older Browsers */
.grid {
    display: grid;
    gap: 2rem;
}

@supports not (gap: 2rem) {
    .grid > * {
        margin-bottom: 2rem;
    }
}

/* Image Optimization */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Performance - Will Change for Animations */
.will-change-transform {
    will-change: transform;
}

.will-change-opacity {
    will-change: opacity;
}

/* Cookie Notice (if needed) */
.cookie-notice {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #1f2937;
    color: white;
    padding: 1rem;
    text-align: center;
    z-index: 9999;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.cookie-notice.show {
    transform: translateY(0);
}

/* AdSense Responsive Units */
@media (max-width: 768px) {
    .adsbygoogle {
        min-height: 50px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .adsbygoogle {
        min-height: 90px;
    }
}

@media (min-width: 1025px) {
    .adsbygoogle {
        min-height: 90px;
    }
}