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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
}

.nav-logo-img {
    width: 48px;
    height: 48px;
    margin-right: 0.5rem;
    object-fit: contain;
    border-radius: 6px;
    transition: transform 0.3s ease;
}

.nav-logo-img:hover {
    transform: scale(1.1);
}

.nav-logo i {
    margin-right: 0.5rem;
    font-size: 1.8rem;
}

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

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #2563eb;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #60a5fa 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="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #60a5fa;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(45deg, #3b82f6, #60a5fa);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #333;
    transform: translateY(-2px);
}

/* Coin Animation */
.coin-animation {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 400px;
    perspective: 1000px;
}

.coin {
    width: 200px;
    height: 200px;
    position: relative;
    transform-style: preserve-3d;
    animation: coinFlip 6s infinite ease-in-out;
    filter: drop-shadow(0 20px 40px rgba(37, 99, 235, 0.3));
}

.coin-front, .coin-back {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: 700;
    backface-visibility: hidden;
    border: 4px solid rgba(255, 255, 255, 0.2);
    box-shadow: 
        inset 0 0 20px rgba(255, 255, 255, 0.3),
        0 0 30px rgba(37, 99, 235, 0.2);
}

.coin-front {
    background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 50%, #93c5fd 100%);
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.coin-back {
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 50%, #3b82f6 100%);
    color: white;
    transform: rotateY(180deg);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.coin::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 50%;
    background: linear-gradient(45deg, #60a5fa, #93c5fd, #60a5fa);
    z-index: -1;
    opacity: 0.3;
    animation: coinGlow 3s infinite ease-in-out;
}

@keyframes coinFlip {
    0% { 
        transform: rotateY(0deg) rotateX(10deg) scale(1);
    }
    25% { 
        transform: rotateY(90deg) rotateX(15deg) scale(1.05);
    }
    50% { 
        transform: rotateY(180deg) rotateX(10deg) scale(1);
    }
    75% { 
        transform: rotateY(270deg) rotateX(15deg) scale(1.05);
    }
    100% { 
        transform: rotateY(360deg) rotateX(10deg) scale(1);
    }
}

@keyframes coinGlow {
    0%, 100% { 
        opacity: 0.3;
        transform: scale(1);
    }
    50% { 
        opacity: 0.6;
        transform: scale(1.1);
    }
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #333;
}

.section-header p {
    font-size: 1.1rem;
    color: #666;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: #f8fafc;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #333;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #666;
    line-height: 1.7;
}

.about-features {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: #2563eb;
}

.feature-item i {
    font-size: 1.2rem;
}

/* Blockchain Visual */
.blockchain-visual {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

.block {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, #2563eb, #3b82f6);
    border-radius: 10px;
    animation: blockPulse 2s infinite ease-in-out;
}

.block:nth-child(2) { animation-delay: 0.2s; }
.block:nth-child(3) { animation-delay: 0.4s; }
.block:nth-child(4) { animation-delay: 0.6s; }
.block:nth-child(5) { animation-delay: 0.8s; }

@keyframes blockPulse {
    0%, 100% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.1); opacity: 1; }
}

/* Features Section */
.features {
    padding: 6rem 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #f1f5f9;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, #2563eb, #3b82f6);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon i {
    font-size: 1.5rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* Technology Section */
.technology {
    padding: 6rem 0;
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #60a5fa 100%);
    color: white;
}

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

.tech-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.tech-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tech-icon i {
    font-size: 1.5rem;
    color: #60a5fa;
}

.tech-text h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.tech-text p {
    opacity: 0.9;
    line-height: 1.6;
}

/* Roadmap Section */
.roadmap {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.roadmap::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="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="rgba(37,99,235,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.roadmap-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

.roadmap-progress {
    position: relative;
    height: 4px;
    background: rgba(37, 99, 235, 0.2);
    border-radius: 2px;
    margin-bottom: 4rem;
    overflow: hidden;
}

.progress-line {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, #2563eb, #3b82f6, #60a5fa);
    border-radius: 2px;
    opacity: 0.3;
}

.progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 35%;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    border-radius: 2px;
    transition: width 0.8s ease;
    box-shadow: 0 0 10px rgba(37, 99, 235, 0.5);
}

.roadmap-timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.roadmap-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, #2563eb, #3b82f6, #60a5fa);
    transform: translateX(-50%);
    border-radius: 2px;
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.3);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
    display: flex;
    align-items: center;
    opacity: 1;
    transform: translateY(0);
    animation: timelineFadeIn 0.8s ease-out forwards;
}

.timeline-item:nth-child(1) { animation-delay: 0.1s; }
.timeline-item:nth-child(2) { animation-delay: 0.2s; }
.timeline-item:nth-child(3) { animation-delay: 0.3s; }
.timeline-item:nth-child(4) { animation-delay: 0.4s; }
.timeline-item:nth-child(5) { animation-delay: 0.5s; }

@keyframes timelineFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: auto;
    text-align: right;
    padding-left: 4rem;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: auto;
    text-align: left;
    padding-right: 4rem;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    border: 4px solid white;
    box-shadow: 0 0 0 6px rgba(37, 99, 235, 0.2), 0 10px 30px rgba(37, 99, 235, 0.3);
    transition: all 0.3s ease;
    z-index: 2;
}

.timeline-marker:hover {
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 0 0 0 8px rgba(37, 99, 235, 0.3), 0 15px 40px rgba(37, 99, 235, 0.4);
}

.timeline-item.active .timeline-marker {
    background: linear-gradient(135deg, #60a5fa, #93c5fd);
    box-shadow: 0 0 0 8px rgba(96, 165, 250, 0.3), 0 15px 40px rgba(96, 165, 250, 0.4);
}

.marker-icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.marker-pulse {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 2px solid rgba(37, 99, 235, 0.3);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.timeline-item.active .marker-pulse {
    border-color: rgba(96, 165, 250, 0.5);
    animation: activePulse 1.5s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

@keyframes activePulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.3);
        opacity: 0.7;
    }
    100% {
        transform: scale(1.6);
        opacity: 0;
    }
}

.timeline-content {
    width: 45%;
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid #f1f5f9;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 0;
    height: 0;
    border: 10px solid transparent;
}

.timeline-item:nth-child(odd) .timeline-content::before {
    right: -20px;
    border-left-color: white;
    transform: translateY(-50%);
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: -20px;
    border-right-color: white;
    transform: translateY(-50%);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.timeline-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #333;
    margin: 0;
    background: linear-gradient(45deg, #2563eb, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.timeline-date {
    font-size: 0.9rem;
    color: #2563eb;
    font-weight: 700;
    background: linear-gradient(45deg, #2563eb, #3b82f6);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.timeline-content p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    font-size: 1rem;
}

.timeline-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.feature-tag {
    background: linear-gradient(45deg, #f1f5f9, #e2e8f0);
    color: #2563eb;
    padding: 0.4rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.feature-tag:hover {
    background: linear-gradient(45deg, #2563eb, #3b82f6);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
}

.timeline-progress {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid #e2e8f0;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: #f1f5f9;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-bar .progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    border-radius: 3px;
    transition: width 0.8s ease;
    position: relative;
}

.progress-bar .progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-text {
    font-size: 0.8rem;
    font-weight: 600;
    color: #2563eb;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.timeline-item.active .progress-text {
    color: #60a5fa;
}

/* Community Section */
.community {
    padding: 6rem 0;
    background: white;
}

.community-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.community-text h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #333;
}

.community-text p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: #666;
    line-height: 1.7;
}

.social-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 10px;
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #2563eb;
    color: white;
    transform: translateY(-2px);
}

.social-link i {
    font-size: 1.2rem;
}

.community-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.stat-card {
    background: linear-gradient(45deg, #2563eb, #3b82f6);
    color: white;
    padding: 2rem 1rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.stat-card .stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-card .stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 4rem 0 2rem;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-logo-img {
    width: 48px;
    height: 48px;
    margin-right: 0.5rem;
    object-fit: contain;
    border-radius: 6px;
    transition: transform 0.3s ease;
}

.footer-logo-img:hover {
    transform: scale(1.1);
}

.footer-logo i {
    margin-right: 0.5rem;
    color: #2563eb;
}

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #f3f4f6;
}

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

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

.footer-section ul li a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #2563eb;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: #374151;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: #2563eb;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-logo-img {
        width: 40px;
        height: 40px;
    }

    .footer-logo-img {
        width: 40px;
        height: 40px;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-stats {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-features {
        justify-content: center;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .tech-content {
        grid-template-columns: 1fr;
    }

    .roadmap-timeline::before {
        left: 30px;
    }

    .timeline-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .timeline-marker {
        left: 30px;
    }

    .timeline-content {
        width: 100%;
        margin-left: 4rem !important;
        text-align: left !important;
        padding-left: 1.5rem !important;
        padding-right: 1.5rem !important;
    }

    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .timeline-features {
        justify-content: flex-start;
    }

    .community-content {
        grid-template-columns: 1fr;
    }

    .social-links {
        grid-template-columns: 1fr;
    }

    .community-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .section-header h2 {
        font-size: 2rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

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

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

/* Whitepaper Section */
.whitepaper {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.whitepaper::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="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="rgba(37,99,235,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.3;
}

.whitepaper-content {
    position: relative;
    z-index: 1;
}

.whitepaper-info {
    display: flex;
    justify-content: center;
    margin-bottom: 3rem;
}

.whitepaper-card {
    background: white;
    padding: 3rem;
    border-radius: 25px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 500px;
    border: 1px solid #f1f5f9;
    transition: all 0.3s ease;
}

.whitepaper-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 80px rgba(37, 99, 235, 0.2);
}

.whitepaper-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.whitepaper-icon i {
    font-size: 2rem;
    color: white;
}

.whitepaper-card h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #333;
    background: linear-gradient(45deg, #2563eb, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.whitepaper-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.whitepaper-features {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.feature-badge {
    background: linear-gradient(45deg, #f1f5f9, #e2e8f0);
    color: #2563eb;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.feature-badge:hover {
    background: linear-gradient(45deg, #2563eb, #3b82f6);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
}

.open-pdf-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.open-pdf-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.4);
}

/* PDF Viewer */
.pdf-viewer-container {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    backdrop-filter: blur(15px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.pdf-viewer-container.active {
    display: flex;
    flex-direction: column;
    opacity: 1;
}

.pdf-viewer-header {
    background: rgba(255, 255, 255, 0.95);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e2e8f0;
    backdrop-filter: blur(10px);
}

.pdf-viewer-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: #333;
}

.pdf-viewer-title i {
    color: #dc2626;
    font-size: 1.2rem;
}

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

.pdf-control-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: #f1f5f9;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #333;
}

.pdf-control-btn:hover {
    background: #2563eb;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
}

.close-pdf-btn {
    background: #dc2626;
    color: white;
}

.close-pdf-btn:hover {
    background: #b91c1c;
}

.page-info {
    font-weight: 600;
    color: #333;
    min-width: 60px;
    text-align: center;
}

.pdf-viewer-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
}

.pdf-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: white;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.pdf-canvas {
    max-width: 100%;
    max-height: 100%;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    background: white;
    display: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.pdf-canvas.active {
    display: block;
}

/* Remove the .active class styling since we're using display: block directly */

/* Responsive PDF Viewer */
@media (max-width: 768px) {
    .pdf-viewer-header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .pdf-viewer-controls {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .pdf-viewer-content {
        padding: 1rem;
    }
    
    .whitepaper-card {
        padding: 2rem;
        margin: 0 1rem;
    }
    
    .whitepaper-features {
        flex-direction: column;
        align-items: center;
    }
}