@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@600;700&family=Open+Sans:wght@400;600&display=swap");

:root {
    --primary: #667eea;
    --primary-dark: #5a6fd8;
    --secondary: #764ba2;
    --accent: #f093fb;
    --bg: #0f0f23;
    --card: #1a1a2e;
    --card-hover: #16213e;
    --text: #eee;
    --text-muted: #a0a0a0;
    --border: #2d2d44;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --radius: 12px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --glow: 0 0 20px rgba(102, 126, 234, 0.3);
}

body.light {
    --bg: #f8fafc;
    --card: #ffffff;
    --card-hover: #f1f5f9;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --glow: 0 0 20px rgba(102, 126, 234, 0.2);
}

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

body {
    font-family: 'Open Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: all 0.3s ease;
    min-height: 100vh;
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    background: var(--card);
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    z-index: 1000;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--glow);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header {
    text-align: center;
    padding: 60px 0 40px;
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 50px 0;
    flex-wrap: wrap;
}

.nav-btn {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: var(--radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.nav-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.nav-btn:hover::before {
    left: 100%;
}

.nav-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

.nav-btn.active {
    background: linear-gradient(135deg, var(--accent), var(--primary));
}

.page {
    display: none;
    animation: fadeIn 0.5s ease;
}

.page.active {
    display: block;
}

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

.hero {
    background: var(--card);
    border-radius: var(--radius);
    padding: 40px;
    margin: 30px 0;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    text-align: center;
}

.hero h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--primary);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.feature-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--glow);
    background: var(--card-hover);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    color: var(--primary);
    margin-bottom: 15px;
}

.mods-container {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 30px;
    margin: 30px 0;
}

.mod-category {
    background: var(--card);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.mod-category h3 {
    color: var(--primary);
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.version-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.version-btn {
    background: var(--card-hover);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 12px 20px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
}

.version-btn:hover {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    transform: translateX(5px);
}

.special-mod {
    text-align: center;
    background: linear-gradient(135deg, var(--card), var(--card-hover));
}

.special-mod h4 {
    color: var(--accent);
    margin-bottom: 15px;
}

.download-btn {
    background: linear-gradient(135deg, var(--success), #059669);
    color: white;
    border: none;
    padding: 15px 25px;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 15px;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.4);
}

.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    background: var(--warning);
    color: white;
    padding: 15px 25px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    z-index: 1000;
    transform: translateX(400px);
    transition: transform 0.3s ease;
}

.notification.show {
    transform: translateX(0);
}

.faq-section {
    margin: 40px 0;
}

.faq-section h2 {
    color: var(--primary);
    margin-bottom: 30px;
    font-size: 2rem;
}

details {
    background: var(--card);
    border-radius: var(--radius);
    margin: 15px 0;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    overflow: hidden;
}

details[open] {
    box-shadow: var(--glow);
}

.faq-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    user-select: none;
    list-style: none;
}

.faq-title {
    font-weight: 600;
    flex: 1;
}

.faq-icon {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

details[open] .faq-icon {
    transform: rotate(180deg);
}

.faq-content {
    padding: 0 25px 20px;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .mods-container {
        grid-template-columns: 1fr;
    }

    .nav {
        flex-direction: column;
        align-items: center;
    }

    .logo {
        font-size: 2.5rem;
    }

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

.coming-soon {
    text-align: center;
    padding: 100px 0;
}

.coming-soon h2 {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.coming-soon p {
    font-size: 1.2rem;
    color: var(--text-muted);
}

.countdown {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 40px 0;
}

.countdown-item {
    background: var(--card);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    min-width: 80px;
}

.countdown-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary);
}

.countdown-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {

    html, body {
        font-size: 15px;
    }
    .container {
        padding: 0 1rem;
    }

    .header {
        text-align: center;
        margin-bottom: 1rem;
    }
    .logo {
        font-size: 1.8rem;
    }

    .theme-toggle {
        position: fixed;
        top: .5rem;
        right: .5rem;
    }

    .nav {
        display: flex;
        flex-wrap: wrap;
        gap: .5rem;
        justify-content: center;
    }
    .nav-btn {
        flex: 1 1 45%;
        text-align: center;
        padding: .6rem 0;
    }

    .hero {
        margin-bottom: 2.5rem;
    }
    .hero h2 {
        font-size: 1.2rem;
    }
    .hero img {
        width: 100%;
        height: auto;
        object-fit: cover;
    }

    .faq-summary {
        font-size: 1rem;
    }
    .faq-content {
        padding-left: 0;
    }

    .mods-container {
        display: flex;
        flex-direction: column;
        gap: 2rem;
    }
    .mod-category h3 {
        text-align: center;
    }

    .version-list,
    .special-mod {
        display: flex;
        flex-wrap: wrap;
        gap: .5rem;
        justify-content: center;
    }
    .version-btn,
    .download-btn {
        flex: 1 1 48%;
        padding: .6rem .4rem;
    }

    .coming-soon h2 {
        font-size: 1.4rem;
        text-align: center;
    }
}

@media (max-width: 420px) {
    .nav-btn       { flex-basis: 100%; }
    .version-btn,
    .download-btn  { flex-basis: 100%; }
}