/* 共通スタイル - スタイリッシュ版 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', 'Yu Gothic', 'Hiragino Sans', sans-serif;
    background: #f5f7fa;
    position: relative;
    min-height: 100vh;
}

/* 背景パターン */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.05) 0%, transparent 50%);
    z-index: -1;
}

.bg-decoration {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle, rgba(102, 126, 234, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
    z-index: -1;
    opacity: 0.5;
}

/* ヘッダー */
.header, .main-header {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid rgba(102, 126, 234, 0.1);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    cursor: pointer;
}

.logo:hover {
    opacity: 0.8;
}

.nav, .main-nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: #2c3e50;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s;
}

.nav-link:hover {
    color: #667eea;
}

.nav-link:hover::after {
    width: 100%;
}

.btn-primary, .btn-login {
    background: linear-gradient(135deg, #e67e22 0%, #d35400 100%);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(230, 126, 34, 0.3);
}

.btn-primary:hover, .btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(230, 126, 34, 0.4);
}

/* フッター */
.footer, .main-footer {
    background: white;
    color: #2c3e50;
    padding: 3rem 0 1rem 0;
    margin-top: 4rem;
    border-top: 1px solid rgba(102, 126, 234, 0.1);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.footer-link {
    color: #7f8c8d;
    text-decoration: none;
    transition: all 0.3s;
}

.footer-link:hover {
    color: #667eea;
}

.footer p, .main-footer p {
    text-align: center;
    color: #95a5a6;
}

/* レスポンシブ */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 6px;
    background: none;
    border: none;
    z-index: 1100;
}
.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: #2c3e50;
    border-radius: 2px;
    transition: all 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    z-index: 1050;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    text-decoration: none;
}
.mobile-menu .btn-primary {
    background: linear-gradient(135deg, #e67e22 0%, #d35400 100%);
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    font-size: 1.1rem;
}
.mobile-menu-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    color: #2c3e50;
}

@media (max-width: 768px) {
    .nav, .main-nav { display: none !important; }
    .hamburger { display: flex; }
    html, body { overflow-x: hidden; }
}

/* ページヘッダー */
.page-header {
    text-align: center;
    padding: 3rem 0;
}

.page-header h2 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.page-header p {
    color: #7f8c8d;
    font-size: 1.1rem;
}

/* インタビューグリッド */
.interview-grid, .column-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* インタビューカード - 画像付き */
.interview-card, .column-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.interview-card:hover, .column-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.card-image-container {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: #f0f0f0;
}

.card-image-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-content {
    padding: 1.5rem;
}

.card-category-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    border: 2px solid #e74c3c;
    color: #e74c3c;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 4px;
    background: white;
}

.card-title {
    font-size: 1.25rem;
    color: #2c3e50;
    margin: 0.75rem 0 0.5rem 0;
    line-height: 1.4;
}

.card-description {
    color: #7f8c8d;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-top: 0.5rem;
}

/* カテゴリーボタン */
.interview-categories {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin: 2rem 0;
}

.category-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid #e0e0e0;
    background: white;
    color: #7f8c8d;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
}

.category-btn:hover {
    border-color: #667eea;
    color: #667eea;
}

.category-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: transparent;
}