/*
Theme Name: Minimal Calendar Theme
Author: Your Name
Description: A minimalist event calendar theme using Bootstrap 5.
Version: 1.0
*/

/* 元のコードのCSSをここに集約 */
:root {
    --bs-body-bg: #f8f8f8;
    --bs-body-color: #1a1a1a;
}
body {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    letter-spacing: 0.05em;
}
/* ...（以下、元の<style>内のCSSをすべて貼り付け）... */
.hero-section { position: relative; height: 45vh; min-height: 350px; background-color: #000; }
.hero-image { width: 100%; height: 100%; object-fit: cover; opacity: 0.5; filter: grayscale(100%) contrast(120%) brightness(90%); }
.hero-overlay { position: absolute; bottom: 0; left: 0; padding: 4rem 3rem; color: #fff; width: 100%; z-index: 2; }
.month-title-main { font-size: 5rem; font-weight: 300; line-height: 1; margin-bottom: 0.5rem; letter-spacing: 0.1em; }
@media (max-width: 768px) { .month-title-main { font-size: 3.5rem; } }
.minimal-card { border: none; border-radius: 0; background: #ffffff; transition: all 0.3s ease; height: 100%; padding: 1.5rem; }
.minimal-card:hover { box-shadow: 0 10px 30px rgba(0,0,0,0.05); transform: translateY(-2px); outline: 1px solid #1a1a1a; }
.date-number { font-size: 1.5rem; font-weight: 300; line-height: 1; border-bottom: 1px solid #eee; padding-bottom: 0.75rem; margin-bottom: 1.25rem; display: flex; align-items: baseline; justify-content: space-between; }
.weekday { font-size: 0.75rem; color: #888; text-transform: uppercase; }
.event-tag { font-size: 0.65rem; text-transform: uppercase; padding: 3px 8px; background: #1a1a1a; color: #fff; display: inline-block; margin-bottom: 0.5rem; }
.event-tag.night { background: #666; }
.artist-name { font-weight: 600; font-size: 1rem; margin-bottom: 0.25rem; display: block; color: #1a1a1a; text-decoration: none; }
.artist-name:hover { text-decoration: underline; }
.event-meta { font-size: 0.75rem; color: #888; line-height: 1.6; }
.nav-month-container { display: flex; align-items: center; justify-content: center; gap: 1.5rem; }
.nav-month { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.15em; text-decoration: none; color: #888; transition: all 0.2s ease; display: flex; align-items: center; }
.nav-month:hover { color: #1a1a1a; }
.nav-current-month { font-size: 1.5rem; font-weight: 600; letter-spacing: 0.2em; color: #1a1a1a; padding: 0 1.5rem; }
.nav-arrow { font-size: 1.2rem; margin: 0 0.5rem; color: #1a1a1a; }