:root {
    --primary: #0a4d68;
    --secondary: #00d4aa;
    --accent: #1e3a8a;
    --dark: #0f172a;
    --light: #f8fafc;
    --gradient: linear-gradient(135deg, #0a4d68 0%, #00d4aa 50%, #1e3a8a 100%);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #0a0e1a;
    color: white;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 77, 104, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: width 0.3s;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--secondary);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    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><radialGradient id="a" cx="50%" cy="50%"><stop offset="0%" stop-color="%2300d4aa" stop-opacity="0.1"/><stop offset="100%" stop-color="%230a4d68" stop-opacity="0.3"/></radialGradient></defs><rect width="100" height="100" fill="url(%23a)"/></svg>') repeat;
    animation: float 20s infinite linear;
}

@keyframes float {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100px, 100px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: 0 2rem;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.2s both;
    line-height: 1.8;
}

.cta {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
    animation: fadeInUp 1s ease 0.4s both;
    color: white;
    text-decoration: none;
    display: inline-block;
}

.cta:hover {
    background: white;
    color: var(--dark);
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(0, 212, 170, 0.4);
}

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

/* Sections */
section {
    padding: 100px 0;
    max-width: 1400px;
    margin: 0 auto;
    padding-left: 2rem;
    padding-right: 2rem;
}

.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 4rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
}

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

/* Cards */
.card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
    height: 100%;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 212, 170, 0.2);
    border-color: rgba(0, 212, 170, 0.3);
}

.card h3 {
    margin-bottom: 1rem;
    color: var(--secondary);
    font-size: 1.5rem;
}

.card p {
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.card ul {
    list-style: none;
    padding: 0;
}

.card ul li {
    padding: 0.5rem 0;
    opacity: 0.9;
}

.metric {
    font-size: 3rem;
    font-weight: 900;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

/* Tech Cards */
.tech-card {
    text-align: center;
}

.tech-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Impact Cards */
.impact-card {
    text-align: center;
}

.impact-number {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.impact-detail {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: 0.5rem;
}

/* Table */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

th {
    background: rgba(0, 212, 170, 0.2);
    font-weight: 600;
}

tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

/* Calculator */
.calculator {
    background: rgba(255, 255, 255, 0.03);
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
    margin-bottom: 3rem;
}

.calc-input {
    width: 100%;
    max-width: 600px;
    padding: 1rem;
    margin: 1.5rem auto;
    border: none;
    border-radius: 10px;
    font-size: 1.2rem;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    cursor: pointer;
}

.calc-result {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--secondary);
    margin: 2rem 0;
}

.calc-details {
    font-size: 1.2rem;
    margin-top: 1rem;
    line-height: 2;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: var(--gradient);
}

.timeline-item {
    display: flex;
    margin: 4rem 0;
    position: relative;
}

.timeline-item:nth-child(odd) {
    justify-content: flex-end;
    padding-right: 50px;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    padding-left: 50px;
    flex-direction: row-reverse;
}

.timeline-content {
    width: 45%;
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.timeline-content h3 {
    color: var(--secondary);
    margin-bottom: 1rem;
}

/* Governance */
.governance-structure {
    margin-bottom: 3rem;
}

.governance-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 1.5rem;
}

.gov-item {
    background: rgba(255, 255, 255, 0.03);
    padding: 1.5rem;
    border-radius: 10px;
}

.gov-item ul {
    margin-top: 1rem;
}

/* Comparison Grid */
.comparison-grid {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 20px;
    overflow: hidden;
    max-width: 900px;
    margin: 0 auto;
}

.comparison-header, .comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.comparison-header {
    background: rgba(0, 212, 170, 0.2);
}

.comp-item {
    padding: 1.5rem;
    background: rgba(10, 14, 26, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-weight: 500;
}

.comp-item.bitcoin {
    color: #f59e0b;
}

.comp-item.crypto {
    color: var(--secondary);
    font-weight: 600;
}

/* Documents */
.doc-card {
    cursor: pointer;
    text-align: center;
}

.doc-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.doc-size {
    font-size: 0.9rem;
    opacity: 0.6;
    margin-top: 1rem;
}

/* Timeline Roadmap */
.timeline-roadmap {
    display: flex;
    justify-content: space-around;
    margin: 2rem 0;
    flex-wrap: wrap;
    gap: 2rem;
}

.roadmap-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 15px;
    flex: 1;
    min-width: 200px;
    text-align: center;
}

.roadmap-item strong {
    color: var(--secondary);
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

/* Footer */
footer {
    background: var(--dark);
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-section h3 {
    color: var(--secondary);
    margin-bottom: 1rem;
}

.footer-section p {
    opacity: 0.8;
    margin: 0.5rem 0;
}

/* Responsive */
@media (max-width: 1024px) {
    .grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .governance-details {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: column !important;
        padding: 0 !important;
        padding-left: 50px !important;
    }
    
    .timeline-content {
        width: 100%;
        margin-bottom: 2rem;
    }
    
    .comparison-header, .comparison-row {
        grid-template-columns: 1fr;
    }
    
    .grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    nav {
        padding: 0 1rem;
    }
    
    section {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .cta {
        font-size: 1rem;
        padding: 0.8rem 1.5rem;
    }
}

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