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

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    background-color: #0d1117;
    color: #e6edf3;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow-x: hidden;
    padding: 2rem 1rem;
}

.background-glow {
    position: fixed;
    top: -20%;
    left: 20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.12) 0%, rgba(99, 102, 241, 0.08) 50%, transparent 70%);
    filter: blur(80px);
    z-index: 0;
    pointer-events: none;
}

.container {
    position: relative;
    z-index: 1;
    max-width: 900px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.header {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.badge-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.85rem;
    border-radius: 9999px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #34d399;
    font-size: 0.85rem;
    font-weight: 600;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 8px #10b981;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

.header h1 {
    font-size: 2.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1rem;
    color: #8b949e;
}

.subtitle strong {
    color: #58a6ff;
}

.grid-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .grid-container {
        grid-template-columns: 1fr;
    }
}

.card {
    background: rgba(22, 27, 34, 0.8);
    border: 1px solid #30363d;
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(12px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #f0f6fc;
}

.pill {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    letter-spacing: 0.05em;
}

.pill-green {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
}

.pill-blue {
    background: rgba(56, 189, 248, 0.15);
    color: #38bdf8;
}

.info-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(48, 54, 61, 0.5);
    padding-bottom: 0.5rem;
}

.info-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.info-item .label {
    font-size: 0.85rem;
    color: #8b949e;
}

.info-item .value {
    font-size: 0.9rem;
    color: #c9d1d9;
}

.code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    background: #161b22;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    border: 1px solid #30363d;
}

.card-desc {
    font-size: 0.88rem;
    color: #8b949e;
    line-height: 1.4;
}

.btn-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem;
}

.btn {
    padding: 0.6rem 0.85rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background: #238636;
    color: #ffffff;
}

.btn-primary:hover {
    background: #2ea043;
}

.btn-secondary {
    background: #21262d;
    color: #c9d1d9;
    border: 1px solid #30363d;
}

.btn-secondary:hover {
    background: #30363d;
    color: #f0f6fc;
}

.btn-outline {
    background: transparent;
    color: #58a6ff;
    border: 1px solid rgba(88, 166, 255, 0.4);
    display: inline-flex;
    justify-content: center;
    align-items: center;
}

.btn-outline:hover {
    background: rgba(88, 166, 255, 0.1);
}

.response-box {
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.response-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: #8b949e;
    font-weight: 600;
}

.time-tag {
    font-family: monospace;
}

#api-result {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.8rem;
    color: #a5d6ff;
    max-height: 140px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.footer {
    text-align: center;
    font-size: 0.8rem;
    color: #484f58;
}