@charset "UTF-8";

/* --- ベース --- */
:root {
    --bg-color: #f9f9f9;
    --text-main: #333;
    --text-sub: #777;
    --accent-color: #003366;
    --card-bg: #ffffff;
    --transition-speed: 0.3s;
    --font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

/* --- ヘッダー --- */
header {
    text-align: center;
    padding: 60px 20px;
    background-color: #fff;
    margin-bottom: 40px;
}

h1.logo {
    font-size: 2.5rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 800;
    margin-bottom: 10px;
}

h1.logo span {
    border-bottom: 4px solid var(--text-main);
    padding-bottom: 5px;
}

p.subtitle {
    font-size: 0.9rem;
    color: var(--text-sub);
    letter-spacing: 0.05em;
}

/* --- グリッド --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.event-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

/* --- カード --- */
.event-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    display: flex;
    flex-direction: column;
    position: relative;
    height: 100%;
}

.event-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.1);
}

.card-image-wrapper {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    position: relative;
}

.card-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.event-card:hover .card-image-wrapper img {
    transform: scale(1.05);
}

.card-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-meta {
    display: flex;
    justify-content: flex-start; 
    align-items: center;
    font-size: 0.75rem;
    margin-bottom: 12px;
    color: var(--text-sub);
}


.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    margin-top: auto;
    padding-top: 15px;
    font-size: 0.85rem;
    color: var(--accent-color);
    font-weight: 600;
    display: flex;
    align-items: center;
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--transition-speed) ease;
}

.event-card:hover .card-footer {
    opacity: 1;
    transform: translateX(0);
}

/* --- MOREボタン --- */
.button-area {
    text-align: center;
    margin-bottom: 80px;
}

.btn-more {
    background-color: #1a1a1a;
    color: #fff;
    border: none;
    padding: 15px 60px;
    font-size: 1rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: background-color 0.3s;
    font-weight: bold;
}

.btn-more:hover {
    background-color: #444;
}