:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --accent-primary: #38bdf8;
    --accent-secondary: #818cf8;
    --text-main: #f1f5f9;
    --text-dim: #94a3b8;
    --success: #22c55e;
    --error: #ef4444;
    --warning: #f59e0b;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 900px;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

h1 {
    font-weight: 600;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}

p.subtitle {
    color: var(--text-dim);
    font-size: 0.95rem;
}

.card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    margin-bottom: 24px;
}

.input-group {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

input[type="text"] {
    flex: 1;
    background: #0f172a;
    border: 1px solid #334155;
    border-radius: 8px;
    padding: 12px 16px;
    color: white;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

input[type="text"]:focus {
    border-color: var(--accent-primary);
}

button {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border: none;
    border-radius: 8px;
    padding: 12px 24px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.1s, opacity 0.2s;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.settings {
    display: flex;
    gap: 20px;
    color: var(--text-dim);
    font-size: 0.85rem;
    align-items: center;
    flex-wrap: wrap;
}

label {
    display: flex;
    align-items: center;
    gap: 6px;
}

select, input[type="number"] {
    background: #0f172a;
    border: 1px solid #334155;
    color: white;
    border-radius: 4px;
    padding: 4px 8px;
    outline: none;
}

#output-container {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    max-height: 600px;
    overflow-y: auto;
    border-radius: 12px;
    padding: 20px;
    background: #020617;
    border: 1px solid #1e293b;
}

.log-entry { margin-bottom: 8px; border-left: 2px solid #334155; padding-left: 12px; }
.log-header { color: var(--accent-primary); font-weight: 600; margin-top: 16px; }
.log-success { color: var(--success); }
.log-error { color: var(--error); font-weight: 600; }
.log-warning { color: var(--warning); }
.log-info { color: var(--text-dim); }

.loading-spinner {
    display: none;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.1);
    border-top: 2px solid var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

.progress-bar-container {
    width: 100%;
    height: 4px;
    background: #334155;
    border-radius: 2px;
    margin-top: 20px;
    overflow: hidden;
    display: none;
}
#progress-bar {
    width: 0%;
    height: 100%;
    background: var(--accent-primary);
    transition: width 0.3s ease;
}

.cors-hint {
    font-size: 0.75rem;
    margin-top: 10px;
    color: var(--warning);
    opacity: 0.9;
}

/* 상세 결과 테이블 스타일 */
.summary-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    font-size: 0.8rem;
    background: #0f172a;
    border-radius: 8px;
    overflow: hidden;
}
.summary-table th, .summary-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #1e293b;
}
.summary-table th {
    background: #1e293b;
    color: var(--accent-primary);
}
.summary-table tr:last-child td { border-bottom: none; }

/* 상태 배지 스타일 */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.75rem;
    margin-right: 8px;
}
.badge-success { background: rgba(34, 197, 94, 0.2); color: var(--success); }
.badge-warning { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.badge-error { background: rgba(239, 68, 68, 0.2); color: var(--error); }
.badge-info { background: rgba(56, 189, 248, 0.2); color: var(--accent-primary); }

.result-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.05);
    padding: 16px;
    border-radius: 12px;
    text-align: center;
}
.stat-label { font-size: 0.75rem; color: var(--text-dim); margin-bottom: 4px; }
.stat-value { font-size: 1.25rem; font-weight: 600; color: var(--accent-primary); }

.chart-wrapper {
    background: rgba(0,0,0,0.2);
    border-radius: 8px;
    padding: 12px;
    margin-top: 12px;
    height: 220px;
    width: 100%;
}