:root {
    --bg-color: #050507;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --accent-primary: #6366f1;
    --accent-secondary: #a855f7;
    --card-bg: rgba(30, 41, 59, 0.5);
    --nav-height: 70px;
    --font-main: 'Noto Sans SC', sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background: rgba(5, 5, 7, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    max-width: 1400px;
    height: 100%;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo img {
    height: 48px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 48px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    transition: color 0.3s;
    font-size: 0.95rem;
}

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

.nav-cta {
    background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    padding: 10px 24px;
    border-radius: 100px;
    color: white !important;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease !important;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(168, 85, 247, 0.5);
    filter: brightness(1.1);
}

.nav-lang {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 8px;
    transition: all 0.3s;
    min-width: 44px;
    text-align: center;
    position: relative;
    opacity: 0.8;
}

.nav-lang:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    opacity: 1;
}

.mobile-menu-btn {
    display: none;
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding-top: var(--nav-height);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
}

.hero-bg .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, var(--bg-color) 100%);
}

.hero-content {
    max-width: 800px;
    padding: 0 24px;
    z-index: 1;
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
}

.btn-outline {
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    backdrop-filter: blur(4px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Showcase Section (Zig-Zag) */
.showcase {
    padding: 120px 24px;
    background: var(--bg-color);
    max-width: 1200px;
    margin: 0 auto;
}

.showcase-item {
    display: flex;
    align-items: center;
    gap: 80px;
    margin-bottom: 160px;
}

.showcase-item:last-child {
    margin-bottom: 0;
}

.showcase-item.reverse {
    flex-direction: row-reverse;
}

.showcase-text {
    flex: 1;
    max-width: 500px;
}

.showcase-text .icon-box {
    width: 60px;
    height: 60px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 24px;
    color: var(--accent-primary);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.showcase-text h3 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.showcase-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 30px;
    line-height: 1.8;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-size: 1rem;
}

.feature-list li::before {
    content: "✓";
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: var(--accent-primary);
    border-radius: 50%;
    color: white;
    font-size: 0.7rem;
    font-weight: bold;
}

.showcase-image {
    flex: 1.2;
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    aspect-ratio: 16/10;
}

.glass-panel {
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(20px);
}

.showcase-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.showcase-item:hover .showcase-image img {
    transform: scale(1.03);
}

/* Mockup Placeholder */
.mockup-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e293b, #0f172a);
}

.placeholder-content {
    text-align: center;
    color: var(--text-secondary);
    border: 2px dashed rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 12px;
}

.placeholder-content span {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

/* Badge */
.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 100px;
    color: var(--accent-primary);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.gradient-text {
    background: linear-gradient(135deg, #818cf8, #c084fc);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Mobile Responsive Adjustments for ZigZag */
@media (max-width: 968px) {
    .showcase-item {
        flex-direction: column;
        gap: 40px;
        margin-bottom: 100px;
        text-align: center;
    }

    .showcase-item.reverse {
        flex-direction: column;
    }

    .showcase-text {
        max-width: 100%;
    }

    .showcase-text .icon-box {
        margin: 0 auto 24px;
    }

    .feature-list {
        display: inline-block;
        text-align: left;
    }

    .hero-content h1 {
        font-size: 3rem;
    }
}

/* Download Section */
.download {
    padding: 100px 24px;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-color) 0%, #0f172a 100%);
}

.download-content {
    max-width: 800px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(168, 85, 247, 0.1));
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 60px;
    border-radius: 24px;
}

.download h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
}

.platform-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 40px;
    flex-wrap: wrap;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s;
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-primary);
}

/* Footer */
footer {
    padding: 60px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
}

.footer-logo img {
    height: 24px;
    width: auto;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
}

.copyright {
    color: rgba(255, 255, 255, 0.2);
    font-size: 0.8rem;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        background: rgba(5, 5, 7, 0.95);
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        backdrop-filter: blur(10px);
    }

    .nav-links.active {
        display: flex;
        animation: slideDown 0.3s ease-out forwards;
    }

    .mobile-menu-btn {
        display: block;
        width: 30px;
        height: 20px;
        position: relative;
        z-index: 1001;
    }

    .mobile-menu-btn span {
        display: block;
        width: 100%;
        height: 2px;
        background: var(--text-primary);
        position: absolute;
        transition: 0.3s;
    }

    .mobile-menu-btn span:nth-child(1) {
        top: 0;
    }

    .mobile-menu-btn span:nth-child(2) {
        top: 50%;
        transform: translateY(-50%);
    }

    .mobile-menu-btn span:nth-child(3) {
        bottom: 0;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        top: 50%;
        transform: translateY(-50%) rotate(45deg);
    }

    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.active span:nth-child(3) {
        bottom: 50%;
        transform: translateY(50%) rotate(-45deg);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

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