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

:root {
    --bg-color: #f9f9f9;
    --card-bg: #ffffff;
    --text-primary: #111111;
    --text-secondary: #666666;
    --accent-color: #0070f3;
    --border-radius: 12px;
    --transition-speed: 0.3s;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.wrapper {
    max-width: 480px; /* 3열 그리드에 가장 최적화된 너비 */
    margin: 50px auto;
    padding: 0 20px;
}

/* Header Section - 밀도 조절 */
header {
    text-align: center;
    margin-bottom: 45px;
}

header h1 {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.bio {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 12px;
}

.email {
    color: #888;
    text-decoration: none;
    font-size: 0.8rem;
    padding: 4px 12px;
    background: rgba(0,0,0,0.03);
    border-radius: 100px;
    display: inline-block;
    transition: all 0.2s;
}

.email:hover {
    background: rgba(0,0,0,0.06);
    color: var(--text-primary);
}

/* 3-Column Grid - 정렬 및 균형 */
.section-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.main-card {
    appearance: none;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    cursor: pointer;
    text-align: center;
    transition: all var(--transition-speed);
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
    border: 2px solid transparent;
    padding: 0;
    width: 100%;
    font: inherit;
}

.main-card.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 20px rgba(0,112,243,0.15);
}

.main-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.08);
}

.main-card:focus-visible {
    outline: 3px solid rgba(0,112,243,0.3);
    outline-offset: 3px;
}

.main-card img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    display: block;
}

.card-text {
    padding: 10px 4px;
}

.main-card h3 {
    font-size: 0.72rem; /* 작은 화면 텍스트 깨짐 방지 */
    margin: 0;
    font-weight: 700;
    color: var(--text-primary);
}

.card-tags {
    font-size: 0.6rem;
    color: var(--text-secondary);
    margin-top: 3px;
    opacity: 0.8;
}

/* Expanding Content Area - 연결성 강조 */
.expanding-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), margin-bottom 0.5s ease;
    position: relative;
}

.expanding-content.open {
    max-height: 1200px;
    margin-bottom: 40px;
}

.content-inner {
    background: #fff;
    border-radius: var(--border-radius);
    padding: 25px;
    border: 1px solid #eee;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    opacity: 0;
    transform: translateY(10px) scale(0.985);
    transform-origin: top center;
    transition: opacity 0.22s ease, transform 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.expanding-content.open .content-inner {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.content-inner h2 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    border-bottom: 1px solid #f5f5f0;
    padding-bottom: 10px;
    font-weight: 800;
}

.modal-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

/* 모달용 미니멀 링크 칩 */
.modal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.modal-link-chip {
    display: inline-flex;
    align-items: center;
    padding: 7px 14px;
    border: 1px solid #eee;
    border-radius: 100px;
    text-decoration: none;
    color: #444;
    font-size: 0.8rem;
    font-weight: 600;
    background: #fff;
    transition: all 0.2s;
    gap: 8px;
}

.modal-link-chip:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.modal-link-chip img {
    width: 16px;
    height: 16px;
    object-fit: contain;
}

@media (prefers-reduced-motion: reduce) {
    .expanding-content,
    .content-inner {
        transition: none;
    }

    .content-inner,
    .expanding-content.open .content-inner {
        opacity: 1;
        transform: none;
    }
}
/* Goods Store - Image Card Button */
.store { margin-bottom: 50px; text-align: center; }
.store-btn {
    display: block;
    max-width: 360px;
    margin: 0 auto;
    background:
        radial-gradient(circle at 18% 18%, rgba(216, 201, 255, 0.7), transparent 28%),
        radial-gradient(circle at 82% 22%, rgba(191, 234, 255, 0.62), transparent 30%),
        radial-gradient(circle at 50% 100%, rgba(255, 214, 234, 0.5), transparent 36%),
        linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(248, 249, 255, 0.94));
    color: #5a4d74;
    padding: 12px 12px 16px;
    border-radius: 22px;
    text-decoration: none;
    box-shadow:
        0 18px 34px rgba(185, 190, 255, 0.16),
        inset 0 1px 0 rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(212, 218, 255, 0.8);
    transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
    position: relative;
    overflow: hidden;
}

.store-btn:hover {
    transform: translateY(-3px);
    box-shadow:
        0 22px 40px rgba(185, 190, 255, 0.22),
        inset 0 1px 0 rgba(255, 255, 255, 0.96);
    border-color: rgba(198, 207, 255, 0.95);
}

.store-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.84);
    color: #72659a;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    box-shadow: 0 8px 18px rgba(183, 189, 255, 0.18);
    border: 1px solid rgba(220, 225, 255, 0.9);
}

.store-image {
    display: block;
    width: 100%;
    aspect-ratio: 729 / 658;
    object-fit: cover;
    border-radius: 16px;
    margin-bottom: 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.store-label {
    display: block;
    font-weight: 900;
    font-size: 0.92rem;
    letter-spacing: 0.12em;
    color: #6b6188;
}

.store-btn:hover .store-image {
    box-shadow: 0 14px 28px rgba(0,0,0,0.12);
}

/* Other Links - 섹션 구분 명확화 */
.other-links-container {
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid #eee;
    text-align: center;
}

.other-links-container h2 {
    font-size: 0.8rem;
    font-weight: 700;
    color: #bbb;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.other-links-grid { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }

.link-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    color: #666;
    padding: 8px 16px;
    border-radius: 100px;
    text-decoration: none;
    font-size: 0.78rem;
    font-weight: 600;
    border: 1px solid #eee;
    gap: 8px;
    transition: all 0.2s;
}

.link-btn:hover {
    border-color: #ddd;
    color: var(--text-primary);
    background: #fdfdfd;
    transform: translateY(-1px);
}

.btn-icon { width: 14px !important; height: 14px !important; object-fit: contain; border-radius: 2px; }

footer { text-align: center; font-size: 0.7rem; color: #ccc; padding: 60px 0 40px; }