:root {
    --primary-bg: #0a0a0a;
    --secondary-bg: #1a1a1a;
    --card-bg: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --accent-primary: #00d4aa;
    --accent-secondary: #00b894;
    --accent-hover: #00e6b8;
    --border-color: #333333;
    --shadow: 0 10px 30px rgba(0, 212, 170, 0.1);
    --shadow-hover: 0 20px 40px rgba(0, 212, 170, 0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Header Styles */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    animation: slideDown 0.8s ease-out;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    position: relative;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
    z-index: 1001;
}

.logo img {
    height: 35px;
    width: 35px;
    object-fit: cover;
    border-radius: 50%;
    filter: drop-shadow(0 0 8px rgba(0, 212, 170, 0.3));
    transition: all 0.3s ease;
    border: 2px solid var(--accent-primary);
    padding: 2px;
    background: var(--primary-bg);
}

.logo span {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo:hover {
    transform: scale(1.05);
}

.logo:hover img {
    filter: drop-shadow(0 0 12px rgba(0, 212, 170, 0.5));
    transform: rotate(-5deg);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

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

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

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1001;
    padding: 10px;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--accent-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 2rem;
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 212, 170, 0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

.hero-content {
    max-width: 800px;
    z-index: 2;
    position: relative;
    animation: fadeInUp 1s ease-out;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: var(--text-secondary);
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.3s both;
}

/* Section Styles */
section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--accent-primary);
    animation: fadeInUp 0.8s ease-out;
}

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

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    animation: fadeInUp 0.8s ease-out;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-primary);
}

.feature-card h3 {
    color: var(--accent-primary);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

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

/* Download Section */
.download {
    background: var(--secondary-bg);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    margin: 3rem 0;
    border: 1px solid var(--border-color);
    animation: fadeInUp 0.8s ease-out;
}

.version-badge {
    display: inline-block;
    background: var(--accent-primary);
    color: var(--primary-bg);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-weight: 600;
    margin-bottom: 2rem;
    animation: bounceIn 1s ease-out;
}

.features-list {
    list-style: none;
    margin: 2rem 0;
    text-align: left;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.features-list li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 2rem;
    animation: fadeInLeft 0.8s ease-out;
}

.features-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: bold;
}

.download-btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: var(--primary-bg);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    margin: 2rem 0;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    animation: pulse 2s ease-in-out infinite;
}

.download-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-hover);
    background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent-primary) 100%);
}

.installation-guide {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    margin-top: 2rem;
    border: 1px solid var(--border-color);
    text-align: left;
    animation: fadeInUp 0.8s ease-out;
}

.installation-guide h3 {
    color: var(--accent-primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.installation-guide ol {
    color: var(--text-secondary);
    padding-left: 1.5rem;
}

.installation-guide li {
    margin-bottom: 0.8rem;
    line-height: 1.6;
}

/* Footer */
footer {
    background: var(--secondary-bg);
    padding: 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    margin-top: 3rem;
}

footer p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

footer a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--accent-hover);
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.1);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 250px;
        background: var(--secondary-bg);
        flex-direction: column;
        padding: 80px 20px 20px;
        gap: 1.5rem;
        transition: right 0.3s ease;
        border-left: 1px solid var(--border-color);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        opacity: 0;
        transform: translateX(20px);
        transition: all 0.3s ease;
    }

    .nav-links.active li {
        opacity: 1;
        transform: translateX(0);
    }

    .nav-links li:nth-child(1) { transition-delay: 0.1s; }
    .nav-links li:nth-child(2) { transition-delay: 0.2s; }
    .nav-links li:nth-child(3) { transition-delay: 0.3s; }

    .hamburger.active span:first-child {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:last-child {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-links a {
        font-size: 0.9rem;
    }

    nav {
        padding: 0 1rem;
    }

    section {
        padding: 3rem 1rem;
    }

    .download {
        padding: 2rem 1rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .feature-card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.5rem;
    }

    .nav-links {
        width: 220px;
    }

    .nav-links a {
        font-size: 0.8rem;
    }

    .hero {
        padding: 0 1rem;
    }

    .download-btn {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
}