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



/* Custom Pattern Preloader Styles */
#custom-preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #ffffff; /* Clean white background */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.7s ease-out; /* Smooth fade-out */
    opacity: 1;
}

#custom-preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.custom-preloader-svg {
    width: 180px;
    height: 180px;
}

.custom-preloader-dot {
    fill: #667eea; /* Matching website's primary color */
    stroke: #764ba2; /* Matching website's secondary color */
    stroke-width: 2;
    transition: fill 0.3s ease;
}

.custom-preloader-line {
    stroke: #667eea; /* Matching website's primary color */
    stroke-width: 5;
    stroke-linecap: round;
    fill: none;
    stroke-dasharray: 400;
    stroke-dashoffset: 400;
    animation: drawCustomPreloaderLine 2s ease-in-out infinite alternate;
}

@keyframes drawCustomPreloaderLine {
    0% {
        stroke-dashoffset: 400;
    }
    100% {
        stroke-dashoffset: 0;
    }
}





body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    line-height: 1.6;
    scroll-behavior: smooth;
}

/* Header Styles */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.8em;
    font-weight: 700;
    color: #667eea;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        padding: 0.8rem 1rem;
    }
    
    .logo h1 {
        font-size: 1.1em;
    }
    
    nav ul {
        gap: 1rem;
    }
    
    nav ul li a {
        font-size: 0.9em;
    }
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

nav ul li a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

nav ul li a:hover {
    color: #667eea;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #667eea;
    transition: width 0.3s ease;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    max-width: 800px;
    z-index: 2;
    position: relative;
}

.hero h2 {
    font-size: 3.5em;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.3em;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1em;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* Enhanced Search and Filter Section */
.search-filter-section {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.search-container {
    position: relative;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 25px;
    padding: 0.5rem;
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.2);
    backdrop-filter: blur(20px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.search-container:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.3);
    border-color: rgba(102, 126, 234, 0.4);
}

.search-container:focus-within {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.4);
    border-color: #667eea;
}

#search-input {
    border: none;
    outline: none;
    padding: 0.8rem 1.2rem;
    font-size: 1rem;
    background: transparent;
    color: #333;
    min-width: 300px;
    border-radius: 20px;
}

#search-input::placeholder {
    color: #999;
}

#search-button {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border: none;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: white;
    font-size: 1.2rem;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

#search-button:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    background: linear-gradient(135deg, #764ba2, #667eea);
}

/* Main Content Styles */
main {
    padding: 2rem 0;
    min-height: 100vh;
}

.pattern-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* Pattern Card Styles */
.pattern-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.4s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.pattern-card::before {
    content: 
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.pattern-card:hover {
    transform: translateY(-15px) scale(1.05);
    box-shadow: 0 25px 50px rgba(102, 126, 234, 0.3);
    border-color: rgba(102, 126, 234, 0.5);
}

.pattern-card:hover h3 {
    color: #764ba2;
    text-shadow: 0 2px 4px rgba(118, 75, 162, 0.3);
}

.pattern-card:hover .pattern-canvas-container {
    background: linear-gradient(135deg, #f8f9ff, #e8f0ff);
    border-color: rgba(102, 126, 234, 0.4);
    box-shadow: inset 0 4px 8px rgba(102, 126, 234, 0.1);
}

.pattern-card:hover .numerical-navigation {
    background: rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.4);
    color: #5a6fd8;
    transform: scale(1.05);
}

.pattern-card h3 {
    margin: 0 0 1rem 0;
    color: #667eea;
    font-size: 1.4em;
    font-weight: 600;
}

.pattern-canvas-container {
    position: relative;
    width: 100%;
    height: 280px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 15px;
    border: 2px solid rgba(102, 126, 234, 0.2);
    overflow: hidden;
}

.pattern-svg {
    width: 220px;
    height: 220px;
}

.pattern-dot {
    fill: #667eea;
    stroke: #5a6fd8;
    stroke-width: 2;
    transition: all 0.3s ease;
}

.pattern-dot.active {
    fill: #28a745;
    stroke: #1e7e34;
    r: 8;
}

.pattern-line {
    stroke: #667eea;
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    filter: drop-shadow(0 2px 4px rgba(102, 126, 234, 0.3));
    animation: drawLineWithFreeze 4s ease-in-out infinite;
    animation-delay: var(--animation-delay, 0s);
}

@keyframes drawLineWithFreeze {
    0% {
        stroke-dashoffset: 1000;
        opacity: 0.3;
    }
    15% {
        opacity: 1;
    }
    40% {
        stroke-dashoffset: 0;
        opacity: 1;
    }
    70% {
        stroke-dashoffset: 0;
        opacity: 1;
    }
    85% {
        opacity: 1;
    }
    100% {
        stroke-dashoffset: -1000;
        opacity: 0.3;
    }
}

.pattern-dot:hover {
    fill: #28a745;
    stroke: #1e7e34;
    r: 8;
    filter: drop-shadow(0 0 8px rgba(40, 167, 69, 0.6));
}

.pattern-card:hover .pattern-line {
    stroke: #28a745;
    filter: drop-shadow(0 2px 8px rgba(40, 167, 69, 0.4));
}

/* Improved Animation Timing */
@keyframes drawLine {
    0% {
        stroke-dashoffset: 1000;
        opacity: 0.3;
    }
    10% {
        opacity: 1;
    }
    50% {
        stroke-dashoffset: 0;
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        stroke-dashoffset: -1000;
        opacity: 0.3;
    }
}

/* Loading States */
.pattern-card.loading {
    opacity: 0.7;
    transform: scale(0.95);
}

.pattern-card.loaded {
    opacity: 1;
    transform: scale(1);
    transition: all 0.3s ease;
}

/* Responsive Hero Animation */
@media (max-width: 1024px) {
    .hero-animation {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        margin-top: 2rem;
        text-align: center;
    }
    
    .hero-pattern-svg {
        width: 200px;
        height: 200px;
padding: 0 0 0 20px;
    }
}

@media (max-width: 768px) {
    .hero-animation {
        display: none;
    }
    
    .hero-content {
        max-width: 100%;
    }
}


/* Numerical Navigation Styles */
.numerical-navigation {
    font-size: 0.9em;
    color: #667eea;
    font-weight: 600;
    text-align: center;
    margin: 0.5rem 0;
    padding: 0.3rem 0.8rem;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 15px;
    border: 1px solid rgba(102, 126, 234, 0.2);
    font-family: 'Courier New', monospace;
    letter-spacing: 0.5px;
}

footer {
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 3rem 2rem 1rem;
    backdrop-filter: blur(20px);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section h3 {
    color: #667eea;
    margin-bottom: 1rem;
    font-size: 1.3em;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #667eea;
}

.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    nav ul {
        gap: 1rem;
    }

    .hero h2 {
        font-size: 2.5em;
    }

    .hero p {
        font-size: 1.1em;
    }

    .pattern-grid {
        grid-template-columns: 1fr;
        padding: 1rem;
    }

    .search-filter-section {
        flex-direction: column;
        gap: 1rem;
    }

    #search-input {
        min-width: 200px;
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: 0.6rem 0.8rem;
    }
    
    .logo h1 {
        font-size: 1.1em;
    }
    
    nav ul {
        gap: 0.5rem;
    }
    
    nav ul li a {
        font-size: 0.8em;
        padding: 0.3rem 0.5rem;
    }
    
    .hero h2 {
        font-size: 2em;
    }

    .pattern-canvas-container {
        height: 250px;
    }

    .pattern-svg {
        width: 180px;
        height: 180px;
    }
}

/* Difficulty Badge Styles */
.difficulty-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.difficulty-badge.easy {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
}

.difficulty-badge.medium {
    background: linear-gradient(135deg, #ffc107, #fd7e14);
    color: white;
}

.difficulty-badge.hard {
    background: linear-gradient(135deg, #dc3545, #e83e8c);
    color: white;
}

/* No Results Styles */
.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.no-results h3 {
    color: #667eea;
    font-size: 1.5em;
    margin-bottom: 1rem;
}

.no-results p {
    color: #666;
    font-size: 1.1em;
}


/* Hero Pattern Animation */
.hero-animation {
    position: absolute;
    right: 10%;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.7;
}

.hero-pattern-svg {
    width: 300px;
    height: 300px;
}

.hero-pattern-dot {
    fill: rgba(255, 255, 255, 0.8);
    stroke: rgba(255, 255, 255, 0.9);
    stroke-width: 2;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.5));
}

.hero-pattern-line {
    stroke: rgba(255, 255, 255, 0.9);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.3));
    animation: heroDrawLine 3s ease-in-out infinite;
    animation-delay: var(--animation-delay, 0s);
}

@keyframes heroDrawLine {
    0% {
        stroke-dashoffset: 1000;
        opacity: 0;
    }
    20% {
        opacity: 1;
    }
    50% {
        stroke-dashoffset: 0;
        opacity: 1;
    }
    80% {
        opacity: 1;
    }
    100% {
        stroke-dashoffset: -1000;
        opacity: 0;
    }
}

/* Enhanced Pattern Animations with Freeze */
.pattern-line {
    stroke: #667eea;
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    filter: drop-shadow(0 2px 4px rgba(102, 126, 234, 0.3));
    animation: drawLineWithFreeze 4s ease-in-out infinite;
    animation-delay: var(--animation-delay, 0s);
}

@keyframes drawLineWithFreeze {
    0% {
        stroke-dashoffset: 1000;
        opacity: 0.3;
    }
    15% {
        opacity: 1;
    }
    40% {
        stroke-dashoffset: 0;
        opacity: 1;
    }
    70% {
        stroke-dashoffset: 0;
        opacity: 1;
    }
    85% {
        opacity: 1;
    }
    100% {
        stroke-dashoffset: -1000;
        opacity: 0.3;
    }
}

.pattern-dot:hover {
    fill: #28a745;
    stroke: #1e7e34;
    r: 8;
    filter: drop-shadow(0 0 8px rgba(40, 167, 69, 0.6));
}

.pattern-card:hover .pattern-line {
    stroke: #28a745;
    filter: drop-shadow(0 2px 8px rgba(40, 167, 69, 0.4));
}

/* Improved Animation Timing */
@keyframes drawLine {
    0% {
        stroke-dashoffset: 1000;
        opacity: 0.3;
    }
    10% {
        opacity: 1;
    }
    50% {
        stroke-dashoffset: 0;
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        stroke-dashoffset: -1000;
        opacity: 0.3;
    }
}

/* Loading States */
.pattern-card.loading {
    opacity: 0.7;
    transform: scale(0.95);
}

.pattern-card.loaded {
    opacity: 1;
    transform: scale(1);
    transition: all 0.3s ease;
}

/* Responsive Hero Animation */
@media (max-width: 1024px) {
    .hero-animation {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        margin-top: 2rem;
        text-align: center;
    }
    
    .hero-pattern-svg {
        width: 200px;
        height: 200px;
    }
}

@media (max-width: 768px) {
    .hero-animation {
        display: none;
    }
    
    .hero-content {
        max-width: 100%;
    }
}


/* Numerical Navigation Styles */
.numerical-navigation {
    font-size: 0.9em;
    color: #667eea;
    font-weight: 600;
    text-align: center;
    margin: 0.5rem 0;
    padding: 0.3rem 0.8rem;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 15px;
    border: 1px solid rgba(102, 126, 234, 0.2);
    font-family: 'Courier New', monospace;
    letter-spacing: 0.5px;
}



.filter-container select {
    background: rgba(255, 255, 255, 0.95);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    padding: 0.8rem 1.2rem;
    font-size: 1rem;
    color: #333;
    outline: none;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23667eea%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13.2-6.4H18.2c-4.8%200-9.3%201.8-12.9%205.9-3.6%204.1-5.4%209.5-5.4%2015.2%200%205.7%201.8%2011.1%205.4%2015.2l128.6%20127.9c3.6%204.1%208.1%206.2%2012.9%206.2s9.3-2.1%2012.9-6.2L287%20100.2a21.4%2021.4%200%200%200%200-30.8z%22%2F%3E%3C%2Fsvg%3E');
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 0.8em auto;
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.2);
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}

.filter-container select:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.3);
    border-color: rgba(102, 126, 234, 0.4);
}

.filter-container select:focus {
    border-color: #667eea;
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.4);
}

.filter-container select option {
    background: #f8f9fa;
    color: #333;
}

.filter-container select option:checked {
    background: #667eea;
    color: white;
}

.filter-container {
    position: relative;
    display: inline-block;
}

.filter-container::after {
    content: 
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: #667eea;
    font-size: 1.2em;
}





/* Pagination Styles */
.pagination {
    max-width: 1200px;
    margin: 3rem auto 2rem;
    padding: 0 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.pagination-info {
    font-size: 1.1em;
    color: white;
    font-weight: 500;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.pagination-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.pagination-controls button {
    background: rgba(255, 255, 255, 0.95);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: #667eea;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.2);
}

.pagination-controls button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.3);
    border-color: rgba(102, 126, 234, 0.4);
    background: rgba(255, 255, 255, 1);
}

.pagination-controls button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.1);
}

.pagination-controls button:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.2);
}

/* About Section Styles */
.about {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    padding: 4rem 2rem;
    margin: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.about-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    color: white;
}

.about h2 {
    font-size: 2.5em;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.about p {
    font-size: 1.2em;
    margin-bottom: 3rem;
    opacity: 0.9;
    line-height: 1.8;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.feature h3 {
    font-size: 1.4em;
    margin-bottom: 1rem;
    color: white;
}

.feature p {
    font-size: 1em;
    opacity: 0.9;
    margin: 0;
}

/* Responsive Pagination */
@media (max-width: 768px) {
    .pagination-controls {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .pagination-controls button {
        width: 100%;
        max-width: 200px;
    }
    
    .features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .about {
        padding: 3rem 1rem;
    }
    
    .about h2 {
        font-size: 2em;
    }
}



/* Page Jump Styles */
.page-jump-container {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-left: 1rem;
}

.page-jump-input {
    width: 60px;
    padding: 0.8rem 0.5rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.95);
    color: #333;
    font-size: 1rem;
    text-align: center;
    outline: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.2);
}

.page-jump-input:focus {
    border-color: #667eea;
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.4);
}

.page-jump-button {
    background: linear-gradient(135deg, #28a745, #20c997);
    border: none;
    border-radius: 25px;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.page-jump-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
    background: linear-gradient(135deg, #20c997, #28a745);
}

.page-jump-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(40, 167, 69, 0.2);
}

@media (max-width: 768px) {
    .pagination-controls {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .pagination-controls button,
    .page-jump-input,
    .page-jump-button {
        width: 100%;
        max-width: 200px;
    }
    
    .page-jump-container {
        margin-left: 0;
        flex-direction: row;
        justify-content: center;
    }
    
    .page-jump-input {
        width: 80px;
    }
}


/* Author Section Styles */
.author {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    padding: 4rem 2rem;
    margin: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.author-content {
    max-width: 1200px;
    margin: 0 auto;
}

.author-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 25px;
    padding: 3rem;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 3rem;
    align-items: center;
    transition: all 0.3s ease;
}

.author-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.3);
}

.author-photo {
    text-align: center;
}

.author-photo img {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid rgba(102, 126, 234, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.author-photo img:hover {
    transform: scale(1.05);
    border-color: rgba(102, 126, 234, 0.4);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.2);
}

.author-info h2 {
    color: #667eea;
    font-size: 2.2em;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(102, 126, 234, 0.1);
}

.author-info h3 {
    color: #333;
    font-size: 1.8em;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.author-title {
    color: #667eea;
    font-size: 1.2em;
    font-weight: 500;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.author-bio {
    color: #555;
    font-size: 1.1em;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    text-align: justify;
}

.author-credentials {
    display: flex;
    gap: 1.5rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.credential {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(102, 126, 234, 0.1);
    padding: 0.8rem 1.2rem;
    border-radius: 25px;
    border: 1px solid rgba(102, 126, 234, 0.2);
    transition: all 0.3s ease;
}

.credential:hover {
    background: rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.3);
    transform: translateY(-2px);
}

.credential-icon {
    font-size: 1.2em;
}

.credential span:last-child {
    color: #333;
    font-weight: 500;
    font-size: 0.95em;
}

/* Responsive Author Section */
@media (max-width: 1024px) {
    .author-card {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
        padding: 2.5rem;
    }
    
    .author-photo img {
        width: 200px;
        height: 200px;
    }
    
    .author-credentials {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .author {
        padding: 3rem 1rem;
    }
    
    .author-card {
        padding: 2rem;
        gap: 1.5rem;
    }
    
    .author-photo img {
        width: 150px;
        height: 150px;
    }
    
    .author-info h2 {
        font-size: 1.8em;
    }
    
    .author-info h3 {
        font-size: 1.5em;
    }
    
    .author-credentials {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .credential {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .author-bio {
        text-align: left;
        font-size: 1em;
    }
    
    .author-title {
        font-size: 1.1em;
    }
}