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

body {
    font-family: 'Inter', sans-serif;
    overflow: hidden;
    /* background: #0a0a0a; */
    color: #ffffff;
}

.container {
    height: 100vh;
    overflow: hidden;
}

.section {
    height: 100vh;
    width: 100vw;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease-in-out, visibility 0.8s ease-in-out;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    background-image: url('./image/bg.png');
    background-size: 100% 100%;
    overflow-y: auto;
    padding: 4vh 0;
    scroll-behavior: smooth;
}

.section.active {
    opacity: 1;
    visibility: visible;
}

.content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* Navigation Dots */
.navigation {
    position: fixed;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
}

.nav-dots {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.nav-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-dot.active {
    background: #ffffff;
    transform: scale(1.2);
}

/* Section 1 - Hero */
.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #00ff87 0%, #60efff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    line-height: 1.4;
}

.tagline {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #a0a0a0;
}

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

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 1rem;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

/* Algorithm Section */
.algorithm-section {
    text-align: left;
}

.algorithm-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.algorithm-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.algorithm-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 0.8rem;
    /* margin-bottom: 1.5rem; */
}

.algorithm-card p {
    line-height: 1.6;
    margin-bottom: 1rem;
}

/* Image Placeholders */
.image-placeholder {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 1rem;
    margin: 1.5rem 0;
}

.placeholder-text {
    color: rgba(255, 255, 255, 0.5);
    font-size: 1.2rem;
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.image-grid .image-placeholder {
    margin: 0;
}

/* Encryption Framework Section */
.encryption-section .timeline-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 1rem;
    margin-bottom: 1.5rem;
}

.timeline-content h3 {
    color: #00ff87;
    margin-bottom: 1rem;
}

.timeline-content p {
    line-height: 1.6;
}

/* Roadmap Section */
.roadmap-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(365px, 1fr));
    gap: 1.5rem;
}

.roadmap-phase {
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 1rem;
    height: 100%;
}

.phase-header {
    margin-bottom: 1rem;
}

.phase-date {
    color: #00ff87;
    font-size: 0.9rem;
}

.phase-goal {
    color: #00ff87;
    margin: 1rem 0;
}

.phase-items {
    list-style: none;
}

.phase-items li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.4;
}

.phase-items li::before {
    content: "•";
    color: #00ff87;
    position: absolute;
    left: 0;
}

.future-addons {
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 1rem;
}

.addon-items {
    list-style: none;
    margin-top: 1rem;
}

.addon-items li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.4;
}

.addon-items li::before {
    content: "•";
    color: #00ff87;
    position: absolute;
    left: 0;
}

/* Section transitions */
.section-intro {
    font-size: 1.2rem;
    color: #a0a0a0;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .content {
        padding: 1rem;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .hero-content h2 {
        font-size: 1.5rem;
    }
    
    .roadmap-timeline {
        grid-template-columns: 1fr;
    }
    
    .image-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-cards {
        grid-template-columns: 1fr;
    }
    
    .navigation {
        right: 1rem;
    }
    
    .section {
        padding: 2vh 0;
    }
}

/* Custom Scrollbar Styles */
/* For Webkit browsers (Chrome, Safari) */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 255, 135, 0.3);
    border-radius: 4px;
    transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 255, 135, 0.5);
}

/* For Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 255, 135, 0.3) rgba(255, 255, 255, 0.05);
}