/* 탈중앙화 페이지 전용 스타일 */

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1e3a5f 0%, #2d5a87 100%);
    padding: 4rem 0 3rem;
    text-align: center;
    color: white;
    border-bottom: 4px solid #d4a017;
    margin-top: 0;
}
.hero-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}
.hero-desc {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Section */
.section {
    padding: 4rem 0;
}
.section.alt {
    background: #f8f9fa;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}
.section-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: #e9ecef;
    color: #6c757d;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: #212529;
    margin-bottom: 0.75rem;
}
.section-title .highlight {
    color: #1a3a6e;
}
.section-desc {
    font-size: 1rem;
    color: #6c757d;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Cards Grid - 4개 한 줄 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
.card {
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
}
.card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transform: translateY(-2px);
    border-color: #adb5bd;
}
.card.active {
    border-color: #1a3a6e;
    box-shadow: 0 4px 16px rgba(26,58,110,0.2);
    background: linear-gradient(135deg, #fafbff 0%, #f0f4ff 100%);
}
.card-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 1rem;
    background: #f1f3f5;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: all 0.2s;
}
.card:hover .card-icon,
.card.active .card-icon {
    background: #1a3a6e;
}
.card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #212529;
    margin-bottom: 0.5rem;
}
.card.active h4 {
    color: #1a3a6e;
}
.card p {
    font-size: 0.875rem;
    color: #6c757d;
    line-height: 1.6;
}

/* Detail Panel */
.detail-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.3s ease, margin 0.3s ease;
    opacity: 0;
    margin-top: 0;
}
.detail-panel.open {
    max-height: 700px;
    opacity: 1;
    margin-top: 1.5rem;
}
.detail-content {
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    padding: 2rem;
    position: relative;
}
.detail-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 32px;
    height: 32px;
    border: none;
    background: #f1f3f5;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}
.detail-close:hover {
    background: #dee2e6;
}
.detail-close svg {
    width: 16px;
    height: 16px;
    stroke: #6c757d;
}
.detail-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e9ecef;
}
.detail-header .icon {
    font-size: 2rem;
}
.detail-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #212529;
    margin: 0;
}
.detail-body {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2rem;
}
.detail-stats {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.detail-stat {
    background: #f8f9fa;
    border-radius: 6px;
    padding: 1rem;
    text-align: center;
}
.detail-stat.highlight {
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
}
.detail-stat .value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #1a3a6e;
    margin-bottom: 0.25rem;
}
.detail-stat .label {
    font-size: 0.75rem;
    color: #6c757d;
}
.detail-text h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: #343a40;
    margin: 0 0 0.75rem 0;
}
.detail-text h4:not(:first-child) {
    margin-top: 1.5rem;
}
.detail-text p {
    font-size: 0.9rem;
    color: #495057;
    line-height: 1.8;
    margin: 0 0 0.75rem 0;
}
.detail-text strong {
    color: #212529;
}
.detail-text ul {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0;
}
.detail-text li {
    font-size: 0.9rem;
    color: #495057;
    padding: 0.4rem 0;
    padding-left: 1.5rem;
    position: relative;
}
.detail-text li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #0d6832;
    font-weight: 600;
}

/* Comparison Table */
.compare-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
    font-size: 0.9rem;
}
.compare-table th,
.compare-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}
.compare-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #212529;
}
.compare-table td:first-child {
    font-weight: 500;
    color: #495057;
}
.compare-table .good {
    color: #0d6832;
    font-weight: 600;
}
.compare-table .bad {
    color: #c92a2a;
}

/* Responsive */
@media (max-width: 1024px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .card-grid {
        grid-template-columns: 1fr;
    }
    .detail-body {
        grid-template-columns: 1fr;
    }
    .detail-stats {
        flex-direction: row;
        flex-wrap: wrap;
    }
    .detail-stat {
        flex: 1;
        min-width: 100px;
    }
}