:root {
    --color-bg: #ffffff;
    --color-text: #1a1a1a;
    --color-text-muted: #555555;
    --color-border: #e0e0e0;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.container {
    width: 100%;
    max-width: 800px;
    padding: 2rem;
    position: relative;
    z-index: 2;
}

/* Subtle background grid pattern for depth */
body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(to right, rgba(0,0,0,0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0,0,0,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: 0;
}

/* Dynamic background blob for premium feel */
body::after {
    content: '';
    position: absolute;
    width: 70vw;
    height: 70vw;
    background: radial-gradient(circle, rgba(0,0,0,0.02) 0%, rgba(255,255,255,0) 60%);
    top: -20vw;
    right: -10vw;
    border-radius: 50%;
    z-index: 1;
    animation: pulse 15s infinite alternate ease-in-out;
}

@keyframes pulse {
    0% { transform: scale(1) translate(0, 0); }
    100% { transform: scale(1.1) translate(-30px, 30px); }
}

.content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 5rem 3rem;
    border-radius: 32px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 
        0 20px 40px rgba(0,0,0,0.04),
        inset 0 0 0 1px rgba(255,255,255,1);
    animation: fadeUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    transform: translateY(40px);
}

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

.logo-container {
    margin-bottom: 4rem;
    position: relative;
    padding: 10px;
}

.logo {
    max-width: 320px;
    height: auto;
    display: block;
    animation: scaleIn 1.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: 0.2s;
    transform: scale(0.95);
    opacity: 0;
}

@keyframes scaleIn {
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.title {
    font-size: 2.75rem;
    font-weight: 600;
    letter-spacing: -0.04em;
    margin-bottom: 1.25rem;
    color: var(--color-text);
    animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: 0.4s;
    opacity: 0;
}

.subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 480px;
    line-height: 1.7;
    margin-bottom: 3rem;
    font-weight: 300;
    animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: 0.5s;
    opacity: 0;
}

.game-container {
    width: 100%;
    max-width: 600px;
    height: 180px;
    margin: 0 auto 3rem;
    border-radius: 12px;
    overflow: hidden;
    background: #f7f7f7;
    border: 1px solid rgba(0,0,0,0.05);
    box-shadow: inset 0 2px 10px rgba(0,0,0,0.02);
    animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: 0.6s;
    opacity: 0;
    position: relative;
}

.game-container iframe {
    width: 100%;
    height: 100%;
    border: none;
    outline: none;
}

.divider {
    width: 48px;
    height: 2px;
    background-color: var(--color-text);
    margin-bottom: 3rem;
    border-radius: 2px;
    opacity: 0;
    animation: fadeIn 1s ease forwards;
    animation-delay: 0.7s;
}

@keyframes fadeIn {
    to {
        opacity: 0.15;
    }
}

.social-links {
    display: flex;
    gap: 1.5rem;
    animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: 0.8s;
    opacity: 0;
}

.social-links a {
    color: var(--color-text);
    opacity: 0.5;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid transparent;
}

.social-links a:hover {
    opacity: 1;
    transform: translateY(-4px);
    background: var(--color-bg);
    border-color: rgba(0,0,0,0.08);
    box-shadow: 0 10px 20px rgba(0,0,0,0.04);
}

/* Klavye Erişilebilirliği (Focus) */
*:focus-visible {
    outline: 2px solid var(--color-text);
    outline-offset: 4px;
    border-radius: 4px;
}

.social-links a:focus-visible {
    outline: 2px solid var(--color-text);
    outline-offset: 4px;
    background: var(--color-bg);
}

@media (max-width: 640px) {
    .content {
        padding: 3.5rem 1.5rem;
    }
    
    .title {
        font-size: 2.25rem;
    }
    
    .logo {
        max-width: 250px;
    }
    
    .subtitle {
        font-size: 1rem;
    }
}