:root {
    --primary-color: #1a237e;
    --primary-light: #534bae;
    --accent-color: #ff6f00;
    --accent-light: #ffa040;
    
    /* ステージごとのメダルカラー定義 */
    --stage-0-color: #534bae;    
    --stage-25-color: #cd7f32;   /* ブロンズ */
    --stage-50-color: #c0c0c0;   /* シルバー */
    --stage-75-color: #ffd700;   /* ゴールド */
    --stage-100-color: #00e5ff;  /* プラチナ/シアンのグロー */

    /* 季節ごとのアクセシビリティ配慮カラー (ダーク背景用) */
    --season-spring: #f48fb1; /* ピンク */
    --season-summer: #81c784; /* グリーン */
    --season-autumn: #ffb74d; /* オレンジ */
    --season-winter: #4fc3f7; /* ブルー */
    
    /* 選択時の文字色 (ハイコントラスト) */
    --season-text-dark: #111111; 

    --bg-color: #0d1117;
    --card-bg: #161b22;
    --text-main: #c9d1d9;
    --text-muted: #8b949e;
    --border-color: #30363d;
}

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

body {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex; flex-direction: column; align-items: center;
    padding: 10px; overflow-x: hidden;
}

.container {
    width: 100%; max-width: 600px;
    background-color: var(--bg-color);
    padding: 15px; border-radius: 8px;
}

header { 
    display: flex; justify-content: space-between; align-items: center; 
    margin-bottom: 15px; background-color: var(--card-bg); 
    padding: 10px 15px; border-radius: 8px; border: 1px solid var(--border-color);
}

.header-content { flex: 1; text-align: left; }
.subtitle {
    display: inline-block;
    color: var(--accent-light);
    font-size: 0.8rem; font-weight: bold; margin-bottom: 4px; letter-spacing: 1px;
}
header h1 { font-size: 1.3rem; color: #fff; font-weight: bold; line-height: 1.2;}

.logo-container {
    background-color: #ffffff; /* ロゴの使用規約（文字が見える明るい背景指定）のため白背景を強制 */
    padding: 8px; border-radius: 6px; margin-left: 15px;
    display: flex; justify-content: center; align-items: center;
}
#anniversary-logo {
    width: 90px; height: auto; object-fit: contain; display: block;
}

.observation-info {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px;
    background-color: var(--card-bg); padding: 10px;
    border-radius: 8px; border: 1px solid var(--border-color); margin-bottom: 15px;
}

.input-group { display: flex; flex-direction: column; }
.input-group label { font-size: 0.7rem; color: var(--text-muted); margin-bottom: 2px; }
.input-group input {
    background-color: transparent; border: 1px solid var(--border-color);
    border-radius: 4px; padding: 4px 8px; color: #fff; font-size: 0.85rem; width: 100%;
}
.input-group input:focus { outline: none; border-color: var(--accent-light); }

/* --- ダッシュボード・メダル --- */
.dashboard {
    position: relative; /* 左右装飾のため */
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 15px; background-color: var(--card-bg); padding: 20px;
    border-radius: 8px; margin-bottom: 15px; border: 1px solid var(--border-color);
    overflow: hidden; /* 光が外に漏れないように */
    transition: background 1s ease;
}

/* ダッシュボード左右の派手な演出 */
.side-decor {
    position: absolute; top: 0; bottom: 0; width: 30%; pointer-events: none;
    display: flex; flex-direction: column; justify-content: space-around; align-items: center;
    opacity: 0; transition: opacity 1s ease;
}
.left-decor { left: 0; }
.right-decor { right: 0; }

.fx-star {
    font-size: 1.5rem; opacity: 0; transform: scale(0.5);
}

/* 装飾の段階的表示 (背景グロー効果＋パーティクル) */
.dashboard.stage-0 {
    background: var(--card-bg);
}
.dashboard.stage-25 {
    background: radial-gradient(circle at -10% 50%, rgba(205,127,50,0.1) 0%, transparent 60%),
                radial-gradient(circle at 110% 50%, rgba(205,127,50,0.1) 0%, transparent 60%),
                var(--card-bg);
}
.dashboard.stage-25 .side-decor { opacity: 0.3; }
.dashboard.stage-25 .s1, .dashboard.stage-25 .s4 { animation: popTwinkle 3s infinite alternate; }

.dashboard.stage-50 {
    background: radial-gradient(circle at -10% 50%, rgba(192,192,192,0.15) 0%, transparent 70%),
                radial-gradient(circle at 110% 50%, rgba(192,192,192,0.15) 0%, transparent 70%),
                var(--card-bg);
}
.dashboard.stage-50 .side-decor { opacity: 0.6; }
.dashboard.stage-50 .s1, .dashboard.stage-50 .s2, .dashboard.stage-50 .s4, .dashboard.stage-50 .s5 { 
    animation: popTwinkle 2s infinite alternate; 
}

.dashboard.stage-75 {
    background: radial-gradient(circle at -20% 50%, rgba(255,215,0,0.2) 0%, transparent 80%),
                radial-gradient(circle at 120% 50%, rgba(255,215,0,0.2) 0%, transparent 80%),
                var(--card-bg);
}
.dashboard.stage-75 .side-decor { opacity: 0.9; }
.dashboard.stage-75 .fx-star { animation: popTwinkle 1.5s infinite alternate; }

.dashboard.stage-100 {
    background: linear-gradient(135deg, rgba(255,0,128,0.15), rgba(0,229,255,0.15), rgba(255,215,0,0.15)), var(--card-bg);
    background-size: 200% 200%;
    animation: auroraBG 5s ease infinite;
}
.dashboard.stage-100 .side-decor { opacity: 1; }
.dashboard.stage-100 .fx-star { animation: hyperTwinkle 0.8s infinite alternate; font-size: 2rem; }

@keyframes auroraBG { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }
@keyframes popTwinkle { 0% { opacity: 0.2; transform: scale(0.8) rotate(0deg); } 100% { opacity: 1; transform: scale(1.2) rotate(15deg); } }
@keyframes hyperTwinkle { 0% { opacity: 0.5; transform: scale(1) translateY(0); filter: hue-rotate(0deg); } 100% { opacity: 1; transform: scale(1.5) translateY(-5px); filter: hue-rotate(90deg); } }

/* メダル本体 */
.medal-wrapper {
    position: relative; width: 150px; height: 150px; z-index: 10;
    display: flex; justify-content: center; align-items: center;
    background: radial-gradient(circle, #2a2d36 0%, #161b22 70%);
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5), inset 0 0 10px rgba(0,0,0,0.8);
    border: 2px solid #3d4450;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.progress-ring { position: relative; width: 140px; height: 140px; }
.progress-ring svg { position: absolute; top: 0; left: 0; transform: rotate(-90deg); overflow: visible; }
.ring-bg { fill: none; stroke: var(--border-color); stroke-width: 8; }
.ring-fg {
    fill: none; stroke: var(--stage-0-color); stroke-width: 8; stroke-linecap: round;
    stroke-dasharray: 389.55; stroke-dashoffset: 389.55;
    transition: stroke-dashoffset 0.5s ease-out, stroke 0.5s ease, filter 0.5s;
}

.progress-text {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); text-align: center;
}
#current-count { font-size: 2.2rem; font-weight: bold; color: #fff; text-shadow: 0 2px 4px rgba(0,0,0,0.5); }
.total-count { font-size: 0.9rem; color: var(--text-muted); }

/* メダルの輝きエフェクト (内側) */
.medal-decorations {
    position: absolute; width: 100%; height: 100%; pointer-events: none; opacity: 0; transition: opacity 0.5s;
}
.star-fx {
    position: absolute; color: white; font-size: 1.2rem; font-family: serif; animation: twinkle 1.5s infinite alternate;
}
.star-1 { top: -10px; left: 20px; animation-delay: 0s; }
.star-2 { top: 40px; right: -15px; animation-delay: 0.5s; font-size: 1.5rem; }
.star-3 { bottom: -5px; left: 50%; transform: translateX(-50%); animation-delay: 0.2s; }
@keyframes twinkle { 0% { opacity: 0.3; transform: scale(0.8); } 100% { opacity: 1; transform: scale(1.2); } }

/* ステージごとのメダル装飾 */
.stage-25 .medal-wrapper { border-color: var(--stage-25-color); box-shadow: 0 0 10px rgba(205,127,50,0.3); }
.stage-25 .ring-fg { stroke: var(--stage-25-color); filter: drop-shadow(0 0 2px var(--stage-25-color)); }
.stage-25 #current-count { color: #ffe0b2; }

.stage-50 .medal-wrapper { border-color: var(--stage-50-color); box-shadow: 0 0 15px rgba(192,192,192,0.4), inset 0 0 10px rgba(192,192,192,0.1); }
.stage-50 .ring-fg { stroke: var(--stage-50-color); filter: drop-shadow(0 0 4px var(--stage-50-color)); }
.stage-50 .medal-decorations { opacity: 0.5; }
.stage-50 #current-count { color: #f5f5f5; }

.stage-75 .medal-wrapper { border-color: var(--stage-75-color); box-shadow: 0 0 25px rgba(255,215,0,0.5), inset 0 0 15px rgba(255,215,0,0.2); }
.stage-75 .ring-fg { stroke: var(--stage-75-color); filter: drop-shadow(0 0 6px var(--stage-75-color)); }
.stage-75 .medal-decorations { opacity: 0.8; }
.stage-75 .star-fx { color: var(--stage-75-color); }
.stage-75 #current-count { color: #fff8e1; }

.stage-100 .medal-wrapper {
    border-color: var(--stage-100-color);
    box-shadow: 0 0 30px rgba(0,229,255,0.7), inset 0 0 20px rgba(0,229,255,0.3);
}
.stage-100 .ring-fg { stroke: var(--stage-100-color); filter: drop-shadow(0 0 10px var(--stage-100-color)); }
.stage-100 .medal-decorations { opacity: 1; }
.stage-100 .star-fx { color: var(--stage-100-color); font-size: 1.5rem; animation: twinkle-fast 0.6s infinite alternate; }
.stage-100 #current-count { color: #ffffff; text-shadow: 0 0 10px rgba(0,229,255,0.8); }
@keyframes twinkle-fast { 0% { opacity: 0.5; transform: scale(1); } 100% { opacity: 1; transform: scale(1.4); } }

.status-container { text-align: center; z-index: 10; position: relative;}
#achievement-title { font-size: 1.3rem; margin-bottom: 5px; font-weight: bold; letter-spacing: 1px; color:#fff;}
#achievement-message { font-size: 0.9rem; color: var(--text-main); line-height: 1.4; }

/* --- 凡例 --- */
.legend {
    display: flex; gap: 10px; font-size: 0.75rem; color: var(--text-muted); padding: 5px 0;
    width: 100%; justify-content: center; margin-bottom: 5px;
}
.legend-item { display: inline-flex; align-items: center; border: 1px solid; padding: 2px 6px; border-radius: 4px; }
.legend-item[data-season="春"] { border-color: var(--season-spring); color: var(--season-spring); }
.legend-item[data-season="夏"] { border-color: var(--season-summer); color: var(--season-summer); }
.legend-item[data-season="秋"] { border-color: var(--season-autumn); color: var(--season-autumn); }
.legend-item[data-season="冬"] { border-color: var(--season-winter); color: var(--season-winter); }

/* --- コントロール・ソート --- */
.controls-panel {
    display: flex; justify-content: space-between; align-items: center;
    width: 100%; margin-bottom: 5px; padding: 0 5px; flex-wrap: wrap; gap: 8px;
}
.setting-group { display: flex; align-items: center; font-size: 0.8rem; }
.checkbox-label { display: flex; align-items: center; color: var(--text-muted); cursor: pointer; user-select: none; }
.checkbox-label input { display: none; }
.custom-check {
    display: inline-block; width: 14px; height: 14px; border: 1px solid var(--text-muted);
    border-radius: 3px; margin-right: 6px; position: relative; transition: all 0.2s;
}
.checkbox-label input:checked + .custom-check { background-color: var(--accent-light); border-color: var(--accent-light); }
.checkbox-label input:checked + .custom-check::after {
    content: ''; position: absolute; left: 4px; top: 1px; width: 4px; height: 8px;
    border: solid #000; border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.sort-group label { margin-right: 5px; color: var(--text-muted); }
.sort-group select {
    background-color: var(--card-bg); color: #fff; border: 1px solid var(--border-color);
    border-radius: 4px; padding: 4px; font-size: 0.75rem; cursor: pointer;
}

/* --- グリッドとボタン (色分け) --- */
.messier-grid {
    display: grid; grid-template-columns: repeat(11, 1fr); gap: 4px;
    background-color: var(--card-bg); padding: 10px; border-radius: 8px; border: 1px solid var(--border-color);
}

.messier-btn {
    aspect-ratio: 1 / 1; 
    background-color: var(--bg-color); color: var(--text-main);
    border: 1px solid var(--border-color); border-radius: 3px;
    display: flex; flex-direction: column; justify-content: center; align-items: center;
    cursor: pointer; user-select: none; transition: all 0.2s ease;
}

/* 季節カラー枠線 (未選択時) */
.messier-btn[data-season="春"] { border-color: var(--season-spring); color: var(--season-spring); }
.messier-btn[data-season="夏"] { border-color: var(--season-summer); color: var(--season-summer); }
.messier-btn[data-season="秋"] { border-color: var(--season-autumn); color: var(--season-autumn); }
.messier-btn[data-season="冬"] { border-color: var(--season-winter); color: var(--season-winter); }

.messier-btn:hover { filter: brightness(1.2); }

/* 選択時 (背景が季節カラーになる、文字色はハイコントラストな黒) */
.messier-btn.observed {
    box-shadow: inset 0 0 10px rgba(255,255,255,0.4); font-weight: bold;
}
.messier-btn.observed[data-season="春"] { background-color: var(--season-spring); color: var(--season-text-dark); border-color: var(--season-spring); }
.messier-btn.observed[data-season="夏"] { background-color: var(--season-summer); color: var(--season-text-dark); border-color: var(--season-summer); }
.messier-btn.observed[data-season="秋"] { background-color: var(--season-autumn); color: var(--season-text-dark); border-color: var(--season-autumn); }
.messier-btn.observed[data-season="冬"] { background-color: var(--season-winter); color: var(--season-text-dark); border-color: var(--season-winter); }

.m-id { font-size: 0.75rem; line-height: 1; }

.m-info {
    font-size: 0.45rem; line-height: 1.1; color: var(--text-muted);
    text-align: center; display: block; margin-top: 2px;
}
.messier-btn.observed .m-info { color: rgba(0, 0, 0, 0.7); font-weight: normal; }

/* --- アクションボタン --- */
.action-buttons {
    width: 100%; max-width: 600px; display: flex; justify-content: space-between; padding: 10px 0;
}
.btn { padding: 10px 15px; border: none; border-radius: 4px; font-size: 0.9rem; font-weight: bold; cursor: pointer; transition: opacity 0.2s;}
.btn:hover { opacity: 0.9; }
.btn-primary { background-color: var(--accent-color); color: #fff; flex: 1; margin-left: 10px; }
.btn-secondary { background-color: transparent; color: var(--text-muted); border: 1px solid var(--border-color); }

@media (max-width: 480px) {
    header { flex-direction: column; text-align: center; gap: 10px; }
    .header-content { text-align: center; }
    .logo-container { margin-left: 0; width: 100%; max-width: 150px; }
    .messier-grid { grid-template-columns: repeat(10, 1fr); gap: 3px; }
    .m-id { font-size: 0.7rem; }
    .m-info { font-size: 0.4rem; letter-spacing: -0.5px; }
    .medal-wrapper { width: 120px; height: 120px; }
    .progress-ring { width: 110px; height: 110px; }
    .progress-ring svg { width: 110px; height: 110px; viewBox: 0 0 110 110;}
    .controls-panel { flex-direction: column; align-items: stretch;}
    .setting-group { justify-content: center; }
    .dashboard { padding: 15px 10px; }
}

/* --- 画像キャプチャ専用スタイル (保存時の視認性向上) --- */
.is-capturing .input-group input {
    border: none !important; background: transparent !important; 
    color: #ffffff !important; font-weight: bold !important; 
    font-size: 0.95rem !important; padding: 0 !important;
}
.is-capturing .input-group label {
    font-weight: bold; color: #c9d1d9;
}
.is-capturing .m-info {
    /* 撮影時は文字をくっきり太くし、背景に埋もれないようフチドリ（シャドウ）を付与 */
    font-weight: 900; color: #ffffff !important;
    text-shadow: 1px 1px 0 #000, -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000;
}
.is-capturing .messier-btn.observed .m-info {
    color: #000000 !important;
    text-shadow: 1px 1px 0 #fff, -1px -1px 0 #fff, 1px -1px 0 #fff, -1px 1px 0 #fff;
    font-size: 0.5rem;
}
.is-capturing .m-id { font-weight: 900; }
.is-capturing .medal-wrapper {
    box-shadow: none !important; /* ぼんやりした影は画質低下に繋がるため消す */
}