:root {
    --bg-color: #0f172a;
    --card-bg: rgba(255, 255, 255, 0.05);
    --primary-color: #6366f1;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.1);
    
    --lotto-1: #fbbf24;
    --lotto-2: #3b82f6;
    --lotto-3: #ef4444;
    --lotto-4: #6b7280;
    --lotto-5: #10b981;
}

[data-theme="light"] {
    --bg-color: #f1f5f9;
    --card-bg: rgba(255, 255, 255, 0.8);
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Pretendard', sans-serif;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    overflow-x: hidden;
    overflow-y: auto;
    position: relative;
    padding: 2rem 0;
}

/* Theme Toggle */
.theme-toggle-wrapper {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 1rem;
}

.theme-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.theme-btn:hover {
    transform: rotate(15deg) scale(1.1);
}

.sun-icon { display: none; }
.moon-icon { display: block; }

[data-theme="light"] .sun-icon { display: block; }
[data-theme="light"] .moon-icon { display: none; }
[data-theme="light"] .blob { opacity: 0.15; }

/* Background Animations */
.background-blobs {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: -1;
    filter: blur(80px);
}

.blob {
    position: absolute;
    border-radius: 50%;
    opacity: 0.4;
    animation: move 20s infinite alternate;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: var(--primary-color);
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 350px;
    height: 350px;
    background: #ec4899;
    bottom: -50px;
    right: -50px;
    animation-delay: -5s;
}

.blob-3 {
    width: 300px;
    height: 300px;
    background: #8b5cf6;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes move {
    from { transform: translate(0, 0) scale(1); }
    to { transform: translate(50px, 50px) scale(1.1); }
}

/* Container */
.container {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem;
    border-radius: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    width: 90%;
    max-width: 600px;
    text-align: center;
    z-index: 1;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    letter-spacing: -0.025em;
}

header p {
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

/* Numbers Area */
.numbers-wrapper {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    min-height: 120px;
    align-items: center;
    margin-bottom: 2.5rem;
}

.placeholder-text {
    color: var(--text-muted);
    font-style: italic;
}

.lotto-ball {
    width: 65px;
    height: 65px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), inset 0 2px 4px 0 rgba(255, 255, 255, 0.2);
    animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
}

@keyframes popIn {
    0% { transform: scale(0) rotate(-180deg); opacity: 0; }
    100% { transform: scale(1) rotate(0); opacity: 1; }
}

/* Ball Colors */
.ball-1-10 { background: linear-gradient(135deg, #fbbf24, #d97706); }
.ball-11-20 { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.ball-21-30 { background: linear-gradient(135deg, #ef4444, #dc2626); }
.ball-31-40 { background: linear-gradient(135deg, #6b7280, #4b5563); }
.ball-41-45 { background: linear-gradient(135deg, #10b981, #059669); }

/* Button */
.primary-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 1rem;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin: 0 auto;
    transition: all 0.3s ease;
    box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.4);
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(99, 102, 241, 0.5);
    background: #4f46e5;
}

.primary-btn:active {
    transform: translateY(0);
}

.primary-btn svg {
    transition: transform 0.3s ease;
}

.primary-btn:hover svg {
    transform: rotate(90deg);
}

/* Mobile Responsive */
@media (max-width: 480px) {
    .container {
        padding: 2rem 1.5rem;
    }
    
    header h1 {
        font-size: 1.75rem;
    }
    
    .lotto-ball {
        width: 50px;
        height: 50px;
        font-size: 1.125rem;
    }
    
    .numbers-wrapper {
        gap: 0.5rem;
    }
}

/* Comment Section (Disqus) */
.disqus-section {
    margin-top: 4rem;
    text-align: left;
}

.disqus-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    font-weight: 700;
}

.divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin-bottom: 2rem;
}