:root {
    --bg-color: #0c0e12;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --accent-color: #3b82f6; /* Blue */
    --accent-glow: rgba(59, 130, 246, 0.5);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --success: #10b981;
    --danger: #ef4444;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Pretendard', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
}

.glass-container {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    width: 90vw;
    max-width: 1200px;
    height: 90vh;
    border-radius: 24px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo .icon {
    font-size: 2rem;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.status-label {
    font-size: 0.875rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    margin-right: 1rem;
}

#last-update {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Stats Overview */
.overview {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
    padding: 1.5rem;
    border-radius: 16px;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.stat-card h3 {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-card p {
    font-size: 1.75rem;
    font-weight: 800;
}

/* Actions */
.actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.primary-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px var(--accent-glow);
}

.primary-btn:hover {
    filter: brightness(1.2);
    transform: scale(1.02);
}

.capital-ctrl {
    display: flex;
    gap: 0.5rem;
}

.capital-ctrl input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    outline: none;
    width: 150px;
}

.secondary-btn {
    background: rgba(255, 255, 255, 0.05);
    color: white;
    border: 1px solid var(--glass-border);
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.analysis-ctrl {
    display: flex;
    gap: 0.5rem;
}

.dropdown-ctrl {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 12px;
    outline: none;
    cursor: pointer;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .glass-container {
        width: 100vw;
        height: 100vh;
        border-radius: 0;
        padding: 1rem;
    }

    .overview {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .actions {
        flex-direction: column;
        align-items: stretch;
    }

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

    .stat-card p {
        font-size: 1.25rem;
    }
    
    .analysis-ctrl {
        flex-direction: column;
    }
}

.list-container {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 16px;
    padding: 1rem;
    margin-top: 1rem;
    overflow-y: auto;
    height: calc(100% - 3rem);
}

h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

/* List Items */
.list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.list-item:last-child {
    border-bottom: none;
}

.item-info .name {
    font-weight: 500;
    display: block;
}

.item-info .sub {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.item-value {
    text-align: right;
    font-weight: 600;
}

.price-up { color: var(--success); }
.price-down { color: var(--danger); }

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--accent-color);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    z-index: 1000;
    transition: transform 0.3s, opacity 0.3s;
}

.hidden {
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 3px; }