* {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body, html {
    width: 100%;
    height: 100%;
    overflow-x: hidden;
    background: #0a0a0a;
    color: #ffffff;
    line-height: 1.6;
}

.landing-container {
    position: relative;
    width: 100%;
    min-height: 100vh;
    overflow: hidden;
}

#gradient-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.cosmic-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(100, 200, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(150, 100, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 60%, rgba(255, 150, 100, 0.05) 0%, transparent 50%);
    z-index: 2;
    pointer-events: none;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 24px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(20px);
    background: rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 100;
}

.logo-text {
    font-size: 28px;
    font-weight: 800;
    background: linear-gradient(135deg, #64c8ff 0%, #9b64ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.main-nav {
    display: flex;
    gap: 32px;
}

.main-nav a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 6px;
}

.main-nav a:hover {
    color: #64c8ff;
    background: rgba(100, 200, 255, 0.1);
}

main {
    position: relative;
    z-index: 10;
    padding-top: 100px;
}

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 5%;
    max-width: 1600px;
    margin: 0 auto;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    padding-right: 60px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 8px 20px;
    background: rgba(100, 200, 255, 0.1);
    border: 1px solid rgba(100, 200, 255, 0.3);
    border-radius: 50px;
    margin-bottom: 32px;
    font-size: 14px;
    font-weight: 500;
}

.badge-text {
    color: #64c8ff;
}

.badge-version {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
}

.hero-title {
    font-size: clamp(48px, 8vw, 84px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.title-line {
    display: block;
    color: #ffffff;
    opacity: 0;
    transform: translateY(40px);
    animation: titleReveal 1s ease-out forwards;
}

.title-line:nth-child(1) {
    animation-delay: 0.2s;
}

.title-line:nth-child(2) {
    animation-delay: 0.4s;
}

.title-line.accent {
    background: linear-gradient(135deg, #64c8ff 0%, #9b64ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.title-line.accent::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #64c8ff, #9b64ff);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left;
    animation: underlineExpand 0.8s ease-out 0.8s forwards;
}

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

@keyframes underlineExpand {
    to {
        transform: scaleX(1);
    }
}

.hero-subtitle {
    font-size: 20px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 48px;
    opacity: 0;
    transform: translateY(20px);
    animation: subtitleReveal 1s ease-out 0.6s forwards;
}

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

.cta-container {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(20px);
    animation: ctaReveal 1s ease-out 0.8s forwards;
}

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

.download-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    border: none;
    border-radius: 12px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-width: 220px;
}

.download-btn.primary {
    background: linear-gradient(135deg, #64c8ff 0%, #9b64ff 100%);
    color: #000;
    font-weight: 600;
}

.download-btn.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(100, 200, 255, 0.3);
}

.download-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-icon {
    font-size: 20px;
}

.btn-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
}

.btn-text strong {
    font-size: 16px;
    font-weight: 600;
}

.btn-text small {
    font-size: 12px;
    opacity: 0.8;
}

.hero-visual {
    flex: 1;
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
}

.floating-orb {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(100, 200, 255, 0.3), rgba(155, 100, 255, 0.3));
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.orb-1 {
    width: 120px;
    height: 120px;
    top: 20%;
    left: 20%;
    animation: float 6s ease-in-out infinite;
}

.orb-2 {
    width: 80px;
    height: 80px;
    top: 60%;
    right: 30%;
    animation: float 8s ease-in-out infinite reverse;
}

.orb-3 {
    width: 60px;
    height: 60px;
    bottom: 20%;
    left: 40%;
    animation: float 7s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

.main-interface {
    position: relative;
    width: 300px;
    height: 300px;
    opacity: 0;
    animation: interfaceReveal 1.5s ease-out 1s forwards;
}

@keyframes interfaceReveal {
    to {
        opacity: 1;
    }
}

.interface-glow {
    position: absolute;
    top: -50px;
    left: -50px;
    right: -50px;
    bottom: -50px;
    background: radial-gradient(circle, rgba(100, 200, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.interface-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
}

.core-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px solid;
    animation: rotate 10s linear infinite;
}

.ring-1 {
    width: 200px;
    height: 200px;
    border-color: rgba(100, 200, 255, 0.3);
    animation-duration: 20s;
}

.ring-2 {
    width: 150px;
    height: 150px;
    top: 25px;
    left: 25px;
    border-color: rgba(155, 100, 255, 0.4);
    animation-duration: 15s;
    animation-direction: reverse;
}

.ring-3 {
    width: 100px;
    height: 100px;
    top: 50px;
    left: 50px;
    border-color: rgba(255, 150, 100, 0.5);
    animation-duration: 10s;
}

.core-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: radial-gradient(circle, #64c8ff, #9b64ff);
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(100, 200, 255, 0.5);
    animation: corePulse 3s ease-in-out infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes corePulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
    }
}

.how-to-use-section {
    padding: 120px 5% 80px;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.section-header {
    margin-bottom: 60px;
}

.section-title {
    font-size: clamp(36px, 6vw, 48px);
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #64c8ff 0%, #9b64ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.video-container {
    max-width: 800px;
    margin: 0 auto;
}

.video-placeholder {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.video-placeholder:hover {
    transform: translateY(-4px);
    border-color: rgba(100, 200, 255, 0.3);
    box-shadow: 0 20px 40px rgba(100, 200, 255, 0.15);
}

.video-frame {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(100, 200, 255, 0.05) 0%, rgba(155, 100, 255, 0.05) 100%);
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #64c8ff 0%, #9b64ff 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(100, 200, 255, 0.3);
    z-index: 2;
}

.play-button:hover {
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 0 15px 40px rgba(100, 200, 255, 0.4);
}

.play-icon {
    font-size: 24px;
    color: #000;
    margin-left: 4px;
}

.video-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 40px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    text-align: left;
}

.video-overlay h3 {
    font-size: 24px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 8px;
}

.video-overlay p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.features-section {
    padding: 120px 5% 80px;
    max-width: 1200px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-card {
    padding: 40px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(100, 200, 255, 0.3);
    box-shadow: 0 20px 40px rgba(100, 200, 255, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-sphere {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #64c8ff, #9b64ff);
    border-radius: 50%;
    position: relative;
    animation: iconFloat 3s ease-in-out infinite;
}

.icon-lightning {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ff6b6b, #ffd93d);
    border-radius: 50%;
    position: relative;
    animation: iconFloat 3s ease-in-out infinite;
}

.icon-customize {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #a8e6cf, #88d8c0);
    border-radius: 50%;
    position: relative;
    animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #fff;
}

.feature-card p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

footer {
    padding: 40px 5%;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(20px);
    position: relative;
    z-index: 10;
}

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

.footer-content p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

@media (max-width: 1024px) {
    .hero-section {
        flex-direction: column;
        text-align: center;
        padding: 40px 5%;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: 60px;
    }
    
    .hero-visual {
        height: 400px;
    }
    
    .main-nav {
        display: none;
    }
    
    .how-to-use-section {
        padding: 80px 5% 60px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .video-container {
        max-width: 100%;
        padding: 0 20px;
    }
    
    .video-placeholder {
        border-radius: 15px;
    }
    
    .video-overlay {
        padding: 30px;
    }
    
    .play-button {
        width: 70px;
        height: 70px;
    }
    
    .play-icon {
        font-size: 20px;
    }
}

@media (max-width: 768px) {
    .cta-container {
        flex-direction: column;
        width: 100%;
    }
    
    .download-btn {
        width: 100%;
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .how-to-use-section {
        padding: 60px 5% 40px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 16px;
    }
    
    .video-container {
        padding: 0 10px;
    }
    
    .video-placeholder {
        border-radius: 12px;
    }
    
    .video-overlay {
        padding: 20px;
    }
    
    .video-overlay h3 {
        font-size: 20px;
    }
    
    .play-button {
        width: 60px;
        height: 60px;
    }
    
    .play-icon {
        font-size: 18px;
    }
}