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

:root {
    --primary-color: #1d4ed8;
    --primary-dark: #1e3a8a;
    --secondary-color: #0f172a;
    --accent-color: #3b82f6;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-light: #94a3b8;
    --bg-light: #f0f9ff;
    --bg-white: #ffffff;
    --border-color: #dbeafe;
    --shadow-sm: 0 1px 2px 0 rgba(29, 78, 216, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(29, 78, 216, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(29, 78, 216, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(29, 78, 216, 0.1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
}

.nav-brand:hover {
    transform: scale(1.05);
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.btn-nav {
    padding: 0.5rem 1.25rem;
    background: var(--primary-color);
    color: white !important;
    border-radius: 0.5rem;
    transition: background 0.3s ease;
}

.btn-nav:hover {
    background: var(--primary-dark);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 0.25rem;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    position: relative;
    background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 50%, #2563eb 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    overflow: hidden;
    z-index: 1;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?w=1920&h=1080&fit=crop&q=80');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(96, 165, 250, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(37, 99, 235, 0.15) 0%, transparent 50%);
    z-index: 1;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(2px 2px at 20% 30%, white, transparent),
        radial-gradient(2px 2px at 60% 70%, white, transparent),
        radial-gradient(1px 1px at 50% 50%, white, transparent),
        radial-gradient(1px 1px at 80% 10%, white, transparent),
        radial-gradient(2px 2px at 90% 60%, white, transparent);
    background-size: 200% 200%;
    animation: particleFloat 20s ease-in-out infinite;
    opacity: 0.3;
    z-index: 1;
}

@keyframes particleFloat {
    0%, 100% { background-position: 0% 0%, 100% 100%, 50% 50%, 80% 10%, 90% 60%; }
    50% { background-position: 100% 100%, 0% 0%, 25% 75%, 60% 40%, 70% 80%; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInDown 1s ease-out;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    background: linear-gradient(to right, #ffffff, #dbeafe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out 0.2s both;
}

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

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
    line-height: 1.6;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    max-width: 700px;
    margin: 0 auto;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 1s ease-out 0.8s both;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.stat-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.8;
}

/* Buttons */
.btn {
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(29, 78, 216, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(29, 78, 216, 0.4);
}

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

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Manifesto Section */
.manifesto {
    background: var(--bg-white);
    position: relative;
    z-index: 10;
}

.lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    text-align: center;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

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

.manifesto-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.manifesto-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.icon-wrapper {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.icon-wrapper svg {
    width: 30px;
    height: 30px;
    stroke: white;
}

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

.manifesto-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Section Label */
.section-label {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    position: relative;
    padding-left: 2rem;
}

.section-label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1.5rem;
    height: 2px;
    background: var(--primary-color);
}

/* Protocol Section */
.protocol-intro {
    background: var(--bg-light);
    position: relative;
    overflow: hidden;
}

.protocol-intro::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, rgba(29, 78, 216, 0.03) 0%, rgba(59, 130, 246, 0.03) 100%);
    z-index: 0;
}

.protocol-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.protocol-visual {
    position: relative;
}

.protocol-image-container {
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.protocol-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 1rem;
}

.protocol-overlay-graphic {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(29, 78, 216, 0.9) 0%, rgba(59, 130, 246, 0.8) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.mesh-network {
    position: relative;
    width: 100%;
    height: 400px;
}

.mesh-node {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.4);
    animation: pulse 2s ease-in-out infinite;
}

.mesh-node::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    background: white;
    border-radius: 50%;
}

.node-1 { top: 20%; left: 50%; animation-delay: 0s; }
.node-2 { top: 50%; left: 30%; animation-delay: 0.2s; }
.node-3 { top: 50%; left: 70%; animation-delay: 0.4s; }
.node-4 { top: 80%; left: 20%; animation-delay: 0.6s; }
.node-5 { top: 80%; left: 80%; animation-delay: 0.8s; }

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

.mesh-connections {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.mesh-connections line {
    stroke: var(--primary-color);
    stroke-width: 2;
    opacity: 0.3;
    animation: connectionPulse 3s ease-in-out infinite;
}

@keyframes connectionPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.7; }
}

.protocol-description h2 {
    font-size: 2.25rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.protocol-description > p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.protocol-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
}

.feature-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 1.5rem;
    background: white;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.feature-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    stroke: white;
}

.feature-content {
    flex: 1;
}

.feature-number {
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    display: block;
}

.feature-item h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 700;
}

.feature-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Objectives Section */
.objectives {
    background: var(--bg-white);
    position: relative;
    z-index: 10;
}

.objectives-content {
    max-width: 900px;
    margin: 0 auto;
}

.objectives-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
}

.objectives-intro {
    font-size: 1.125rem;
    line-height: 1.9;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    text-align: justify;
}

.objectives-statement {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    margin-top: 2.5rem;
}

.objectives-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.objectives-list li {
    position: relative;
    padding-left: 2.5rem;
    margin-bottom: 1.5rem;
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.objectives-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.5rem;
}

/* Participate Section */
.participate {
    background: var(--bg-light);
    position: relative;
    z-index: 10;
}

.participate-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-bottom: 4rem;
}

.participate-card {
    background: var(--bg-white);
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.participate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.participate-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.participate-card:hover::before {
    transform: scaleX(1);
}

.participate-card-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
}

.participate-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.participate-card:hover .participate-card-image img {
    transform: scale(1.1);
}

.participate-card-content {
    padding: 2.5rem;
    position: relative;
}

.participate-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: -3.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 20px rgba(29, 78, 216, 0.3);
    position: relative;
    z-index: 1;
}

.participate-icon svg {
    width: 28px;
    height: 28px;
    stroke: white;
}

.participate-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 700;
}

.participate-card > p,
.participate-card-content > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.participate-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.participate-list li {
    padding-left: 2rem;
    position: relative;
    color: var(--text-secondary);
    line-height: 1.6;
}

.participate-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    background: var(--primary-color);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    top: 0.1rem;
}

.participate-cta {
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    padding: 3rem;
    border-radius: 1rem;
    color: white;
}

.participate-message {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

/* Contact Section */
.contact {
    background: var(--bg-white);
    position: relative;
    z-index: 10;
}

.contact-content-centered {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-info h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.contact-info > p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-item svg {
    width: 24px;
    height: 24px;
    stroke: var(--primary-color);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--accent-color);
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

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

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

.footer-section ul a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul a:hover {
    color: white;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 968px) {
    .protocol-split {
        grid-template-columns: 1fr;
    }

    .protocol-visual {
        order: 2;
        margin-top: 2rem;
    }

    .protocol-description {
        order: 1;
    }

    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
    }

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

    .hamburger {
        display: flex;
    }

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

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding-top: 2rem;
    }

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

    .objectives-content h2 {
        font-size: 2rem;
    }

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

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

    .feature-item {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .feature-icon {
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .section {
        padding: 3rem 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }

    .hero-badge {
        font-size: 0.75rem;
        padding: 0.4rem 1rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }
}