@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

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

:root {
    --primary: #6366f1;
    --secondary: #a855f7;
    --dark: #1e1b4b;
    --light: #f8fafc;
    --text: #334155;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 100%;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.5rem;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 3px;
}

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

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

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    transition: width 0.3s;
}

nav a:hover::after {
    width: 100%;
}

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

main {
    min-height: calc(100vh - 80px);
}

.hero {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.9), rgba(168, 85, 247, 0.9));
    padding: 4rem 2rem;
    text-align: center;
    color: white;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.content-section {
    background: white;
    padding: 3rem 2rem;
    margin: 0;
}

.content-wrapper {
    max-width: 1400px;
    margin: 0 auto;
}

.content-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--dark);
    text-align: center;
}

.content-section p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    text-align: center;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.notice-box {
    background: linear-gradient(135deg, #fef3c7 0%, #fcd34d 100%);
    padding: 2rem;
    border-radius: 15px;
    margin: 2rem auto;
    max-width: 900px;
    border-left: 5px solid #f59e0b;
}

.notice-box h3 {
    color: #92400e;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.notice-box ul {
    list-style: none;
    padding-left: 0;
}

.notice-box li {
    padding: 0.5rem 0;
    color: #92400e;
    font-weight: 500;
}

.notice-box li::before {
    content: "⚠️ ";
    margin-right: 0.5rem;
}

.game-container {
    max-width: 1400px;
    margin: 3rem auto;
    padding: 2rem;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.game-frame {
    width: 100%;
    height: 700px;
    border: none;
    border-radius: 10px;
    background: #000;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem auto;
    max-width: 1400px;
    padding: 0 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

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

.feature-card h3 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.feature-card p {
    text-align: left;
}

footer {
    background: rgba(30, 27, 75, 0.95);
    color: white;
    padding: 3rem 2rem 1rem;
    margin-top: 0;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--secondary);
}

.footer-section a {
    color: #cbd5e1;
    text-decoration: none;
    display: block;
    margin: 0.5rem 0;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #cbd5e1;
}

.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: white;
    margin: 10% auto;
    padding: 3rem;
    border-radius: 20px;
    max-width: 500px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-content h2 {
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.modal-content p {
    margin-bottom: 2rem;
    color: var(--text);
    font-size: 1.1rem;
}

.modal-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.btn-secondary {
    background: #e2e8f0;
    color: var(--text);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

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

    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: white;
        transition: right 0.3s;
        padding: 5rem 2rem;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
    }

    nav.active {
        right: 0;
    }

    nav ul {
        flex-direction: column;
        gap: 1.5rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .content-section h2 {
        font-size: 1.8rem;
    }

    .game-frame {
        height: 500px;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
    }
}