/* --- CSS Variables for Modern Theme --- */
:root {
    --bg-color: #f0f2f5; /* 非常に明るいグレー */
    --surface-color: #ffffff;
    --primary-color: #0056b3; /* 深い青 */
    --secondary-color: #6c757d; /* サブテキスト用 */
    --text-color: #212529;
    --subtle-text-color: #868e96; /* より控えめなテキスト */
    --border-color: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.08); /* より強い影 */
    --hover-shadow-color: rgba(0, 0, 0, 0.15); /* ホバー時の影 */

    --up-train-color: #28a745;   /* 緑系 */
    --down-train-color: #fd7e14; /* オレンジ系 */
    --stop-color: #dc3545;     /* 赤 */
    --delay-color: #ffc107;    /* 黄色 */
    --early-color: #17a2b8;    /* シアン */
    --wait-color: #007bff;     /* 青 */
    --substitute-color: #6f42c1; /* 紫 */

    --info-bg-color: #e9f7ff;
    --info-border-color: #a5d8ff;
    --info-icon-color: #007bff;

    --suspended-bg-color: rgba(255, 192, 203, 0.4); /* 薄いピンク */
    --suspended-border-color: #ff69b4; /* 濃いピンク */

    --warning-bg-color: rgba(255, 235, 59, 0.3); /* 薄い黄色 */
    --warning-border-color: #ffc107; /* 濃い黄色 */

    --branch-line-color: #a3cc95; /* ライトグリーン/グレー */

    --light-gray-bg: #f8f8f8; /* 薄い灰色を追加 */
}

/* --- General Settings --- */
body {
    font-family: 'Inter', sans-serif; /* Interフォントを使用 */
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    padding: 20px; /* 全体のパディングを増やす */
    margin: 0;
    line-height: 1.6;
    min-height: 100vh;
    align-items: flex-start; /* 上部に寄せる */
    box-sizing: border-box;
}

.container {
    width: 95%;
    max-width: 900px;
    background-color: var(--surface-color);
    border-radius: 16px; /* 角をさらに丸く */
    box-shadow: 0 8px 30px var(--shadow-color); /* 影を強調 */
    padding: 30px; /* パディングを増やす */
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 40px); /* body paddingを考慮 */
    box-sizing: border-box;
}

header {
    text-align: center;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

h1 {
    font-size: 2.2em; /* 大きな見出し */
    font-weight: 700; /* 太字 */
    color: var(--primary-color);
    margin: 0;
    letter-spacing: -0.5px; /* 文字間隔を調整 */
}

h2 {
    font-size: 1.4em;
    font-weight: 500;
    color: var(--secondary-color);
    margin-top: 5px;
}

#current-time {
    font-size: 1.2em;
    color: var(--subtle-text-color);
    font-weight: 600;
    margin-top: 10px;
}

/* --- Card Style --- */
.card {
    background-color: var(--surface-color);
    border-radius: 12px;
    box-shadow: 0 4px 15px var(--shadow-color);
    border: 1px solid var(--border-color);
    padding: 15px 20px;
    margin-bottom: 20px;
    transition: box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: 0 6px 20px var(--hover-shadow-color);
}

/* --- Announcements --- */
#announcements-board {
    margin-bottom: 24px;
}

.announcement-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 16px;
    background-color: var(--info-bg-color);
    border: 1px solid var(--info-border-color);
    color: var(--primary-color);
    font-size: 0.95em;
    border-radius: 8px;
    margin-bottom: 8px;
    box-shadow: none; /* 個々のお知らせアイテムには影をつけない */
}
.announcement-item:last-child {
    margin-bottom: 0;
}

.announcement-icon {
    flex-shrink: 0;
    margin-top: 2px;
    width: 20px; /* アイコンサイズを少し大きく */
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.announcement-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* --- Legend --- */
.legend {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px 24px;
    margin-bottom: 24px;
    font-size: 0.9em;
    color: var(--subtle-text-color);
    padding: 15px 20px; /* カードのパディング */
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-icon {
    width: 28px; /* アイコンのコンテナサイズを調整 */
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.legend-icon img {
    width: 25px; /* 画像の実際のサイズ */
    height: 25px;
    object-fit: contain;
}

/* --- Track Layout --- */
#train-guide-wrapper {
    position: relative;
    padding: 0 20px;
    flex-grow: 1;
    min-height: calc(100vh - 400px); /* ヘッダーやカードの高さに合わせて調整 */
    overflow-y: auto; /* スクロール可能にする */
    -webkit-overflow-scrolling: touch; /* iOSでのスムーズなスクロール */
    border-radius: 12px;
    background-color: var(--surface-color); /* 背景色を白に統一 */
    padding-top: 20px; /* 上部にパディング */
    padding-bottom: 20px; /* 下部にパディング */
}

#track {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
    bottom: 0;
    width: 8px; /* 少し太く */
    background-color: var(--primary-color);
    z-index: 1;
    border-radius: 4px; /* 端を丸く */
}

#station-list {
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative; /* 駅の配置基準 */
}

.station {
    position: relative;
    display: flex;
    align-items: center;
    flex-grow: 1;
    font-size: 14px;
    min-height: 90px; /* 駅と駅の間の間隔を広げる */
    background-color: var(--light-gray-bg); /* 奇数駅（デフォルト）は薄い灰色 */
    transition: background-color 0.2s ease, box-shadow 0.2s ease;
}

.station:nth-child(even) {
    background-color: var(--surface-color); /* 偶数駅は白 */
}

.station-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 40%;
    width: 18px; /* 少し大きく */
    height: 18px;
    background-color: var(--surface-color); /* マーカー内部は白 */
    border: 4px solid var(--primary-color); /* マーカーの枠線はプライマリカラー */
    border-radius: 50%;
    z-index: 4;
}
.station-suspended {
    background: linear-gradient(90deg, rgba(239, 68, 68, 0.08), rgba(239, 68, 68, 0));
    box-shadow: inset 0 0 0 2px rgba(239, 68, 68, 0.3);
}
.station-info {
    background: linear-gradient(90deg, rgba(250, 204, 21, 0.15), rgba(250, 204, 21, 0));
    box-shadow: inset 0 0 0 2px rgba(250, 204, 21, 0.35);
}

.station-name {
    position: absolute;
    left: 25px; /* 左端からの余白を増やす */
    top: calc(50% - 25px); /* アイコンとの重なりを避けるため調整 */
    white-space: nowrap;
    color: var(--text-color);
    font-size: 1.15em; /* フォントサイズを大きく */
    font-weight: 700; /* さらに太字 */
}

.station-icon-wrapper {
    position: absolute;
    left: 25px;
    top: calc(50% + 10px); /* 駅名の下に配置 */
    display: flex;
    align-items: center;
    justify-content: flex-start;
    width: auto;
    height: auto;
    z-index: 5;
    cursor: pointer;
}

.station-icon {
    width: 24px; /* アイコンのサイズを調整 */
    height: 24px;
    border-radius: 6px; /* 角を丸める */
    object-fit: cover;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* 山陽線分岐のスタイル */
#sanyo-line-branch {
    position: absolute;
    left: calc(50% + 4px); /* Adjusted for new track width */
    width: 70px; /* Adjusted width */
    height: 35px; /* Adjusted height */
    border-left: 3px solid var(--branch-line-color);
    border-bottom: 3px solid var(--branch-line-color);
    border-bottom-left-radius: 35px;
    z-index: 1;
    pointer-events: none;
    box-sizing: border-box;
}

.sanyo-line-label {
    position: absolute;
    top: calc(100% + 5px);
    left: calc(100% - 20px); /* Adjusted horizontally */
    white-space: nowrap;
    font-size: 0.85em;
    color: var(--branch-line-color);
    text-align: right;
    font-weight: 600;
}

/* --- Suspended Section --- */
.suspended-section {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    background-color: var(--suspended-bg-color);
    border-left: 2px solid var(--suspended-border-color);
    border-right: 2px solid var(--suspended-border-color);
    z-index: 5;
    cursor: pointer;
    border-radius: 4px;
}

/* お知らせ範囲セクションのスタイル */
.info-range-section {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    background-color: var(--warning-bg-color);
    border-left: 2px solid var(--warning-border-color);
    border-right: 2px solid var(--warning-border-color);
    z-index: 5;
    cursor: pointer;
    border-radius: 4px;
}


/* --- Train Icons (画像用) --- */
.train {
    position: absolute;
    width: 45px;
    height: 45px;
    cursor: pointer;
    transition: top 1s linear;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    top: -10px;
}

.train img {
    width: 30px;
    height: 30px;
    object-fit: contain;
}

/* 各方向・状態の列車アイコンの位置調整 */
.train.up-image,
.train.delayed-up-image,
.train.substitute-up-image {
    left: calc(50% + 4px - (45px / 2) + 25px);
}

.train.down-image,
.train.delayed-down-image,
.train.substitute-down-image {
    left: calc(50% - 4px - (45px / 2) - 25px);
}

.train.stopped-image,
.train.waiting-image {
    left: calc(50% - (45px / 2));
}

/* 列車アイコンの上に表示される遅延/早発のテキスト */
.train-status-overlay {
    position: absolute;
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.1em;
    font-weight: 800;
    white-space: nowrap;
    z-index: 11;
    text-shadow: 0 0 4px rgba(255,255,255,0.9), 0 0 4px rgba(255,255,255,0.9);
}

.train-status-overlay.delay { color: var(--delay-color); }
.train-status-overlay.early { color: var(--early-color); }
.train-badges {
    position: absolute;
    bottom: -10px;
    right: -10px;
    display: flex;
    gap: 6px;
}
.train-badge {
    padding: 4px 7px;
    border-radius: 10px;
    background: rgba(15, 23, 42, 0.85);
    color: #e2e8f0;
    font-size: 11px;
    font-weight: 800;
    border: 1px solid rgba(255,255,255,0.15);
    box-shadow: 0 3px 10px rgba(0,0,0,0.25);
    line-height: 1;
}
.type-badge.type-local { background: linear-gradient(135deg, #2563eb, #1e40af); }
.type-badge.type-rapid { background: linear-gradient(135deg, #10b981, #047857); }
.type-badge.type-limited { background: linear-gradient(135deg, #f59e0b, #d97706); }
.type-badge.type-bus { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.type-badge.type-other { background: linear-gradient(135deg, #4b5563, #1f2937); }


/* --- Tooltip --- */
.tooltip {
    display: none;
    position: fixed;
    background-color: var(--surface-color);
    color: var(--text-color);
    padding: 20px 25px;
    border-radius: 16px;
    font-size: 15px;
    white-space: nowrap;
    z-index: 20;
    pointer-events: none;
    line-height: 1.6;
    box-shadow: 0 8px 30px var(--shadow-color);
    border: 1px solid var(--border-color);
    text-align: left;
    min-width: 280px;
    max-width: 350px;
    opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
    transform: translateY(10px);
}

.tooltip.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.tooltip h3 {
    font-size: 1.3em;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.tooltip .sub-text {
    font-size: 0.9em;
    color: var(--subtle-text-color);
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.tooltip .train-info-section {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.tooltip .train-type-label {
    background-color: var(--primary-color);
    color: white;
    padding: 5px 10px;
    border-radius: 6px;
    font-size: 0.9em;
    font-weight: bold;
    margin-right: 10px;
    flex-shrink: 0;
}

.tooltip .train-main-info {
    font-size: 1.15em;
    font-weight: bold;
    color: var(--text-color);
    flex-grow: 1;
    white-space: normal;
}

.tooltip .train-main-info span {
    font-weight: normal;
    color: var(--secondary-color);
}

.tooltip .delay-status {
    font-weight: bold;
    color: var(--delay-color);
    margin-top: 5px;
    margin-left: 0;
    font-size: 1em;
    width: 100%;
}

.comfort-index-section {
    font-size: 0.95em;
    color: var(--text-color);
    margin-top: 10px;
    font-weight: normal;
    padding-top: 10px;
    border-top: 1px dashed var(--border-color);
}

.comfort-index-section b {
    font-weight: bold;
    color: var(--secondary-color);
}

.comfort-value-very-empty { color: #28a745; font-weight: bold; }
.comfort-value-empty { color: #17a2b8; font-weight: bold; }
.comfort-value-slightly-crowded { color: #ffc107; font-weight: bold; }
.comfort-value-crowded { color: #fd7e14; font-weight: bold; }
.comfort-value-very-crowded { color: #dc3545; font-weight: bold; }
.comfort-value-unknown { color: #757575; font-weight: bold; }

.tooltip .next-station-arrival {
    font-size: 0.9em;
    color: var(--text-color);
    margin-top: 10px;
    margin-left: 0;
    padding-top: 10px;
    border-top: 1px dashed var(--border-color);
}

.tooltip .next-station-arrival span {
    font-weight: bold;
    color: var(--primary-color);
}

.tooltip .disclaimer {
    font-size: 0.75em;
    color: var(--subtle-text-color);
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px dashed var(--border-color);
}

.tooltip .disclaimer::before {
    content: '● ';
    color: var(--subtle-text-color);
}

/* --- Added Styles for Timetable Modal --- */
.station-details-container {
    position: absolute;
    right: 25px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

.next-train-info {
    font-size: 12px;
    text-align: right;
    color: var(--subtle-text-color);
    line-height: 1.3;
}
.station-status-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 800;
    margin-bottom: 6px;
    border: 1px solid var(--border-color);
    background: #f8fafc;
    color: var(--text-color);
}
.station-status-chip.suspended {
    background: rgba(239, 68, 68, 0.12);
    border-color: rgba(239, 68, 68, 0.4);
    color: #991b1b;
}
.station-status-chip.info {
    background: rgba(250, 204, 21, 0.18);
    border-color: rgba(250, 204, 21, 0.45);
    color: #854d0e;
}
.station-status-chip.hidden { display: none; }

.next-train-time {
    font-weight: bold;
    font-size: 1.2em;
    color: var(--text-color);
}
.next-train-time span {
    font-weight: normal;
    font-size: 0.9em;
}

.next-train-dest {
    font-weight: 500;
}

.see-more-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s ease;
    margin-top: 4px;
}

.see-more-btn:hover {
    background-color: #004a99;
}

.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background-color: var(--surface-color);
    padding: 25px;
    border-radius: 16px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { transform: translateY(-30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
    margin-bottom: 15px;
}

#modal-title {
    margin: 0;
    font-size: 1.5em;
    color: var(--primary-color);
}

.modal-close-btn {
    background: none;
    border: none;
    font-size: 2.5rem;
    font-weight: 300;
    line-height: 1;
    color: var(--secondary-color);
    cursor: pointer;
    transition: color 0.2s;
}
.modal-close-btn:hover {
    color: var(--text-color);
}

#modal-body {
    overflow-y: auto;
    font-size: 1em;
}

.timetable-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.timetable-list li {
    padding: 12px 5px;
    border-bottom: 1px solid var(--border-color);
    display: grid;
    gap: 10px;
    align-items: center;
    grid-template-columns: 90px 1fr 150px;
}

.timetable-list li:hover {
    background-color: var(--bg-color);
}

.timetable-list li:last-child {
    border-bottom: none;
}

.timetable-train-id {
    font-weight: bold;
    color: var(--primary-color);
}

.timetable-train-dest {
    color: var(--secondary-color);
}

.timetable-times {
    text-align: right;
    font-family: monospace;
    font-size: 1em;
    font-weight: 500;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    body { padding: 10px; }
    .container { padding: 20px; min-height: calc(100vh - 20px); }
    h1 { font-size: 1.8em; }
    h2 { font-size: 1.2em; }
    .legend { flex-direction: column; align-items: flex-start; gap: 10px; }
    .station-name { font-size: 1em; left: 15px; top: calc(50% - 20px); }
    .station-icon-wrapper { left: 15px; top: calc(50% + 5px); }
    .train { width: 40px; height: 40px; }
    .train img { width: 28px; height: 28px; }
    .train-status-overlay { font-size: 1em; top: -15px; }
    .tooltip {
        min-width: unset;
        width: 90%;
        left: 5% !important;
        transform: none !important;
        top: auto !important;
        bottom: 10px;
        right: 5%;
        white-space: normal;
    }
    .tooltip.active { transform: none; }
}

/* --- Modern overrides & admin panel --- */
:root {
    --bg-color: #0f172a;
    --surface-color: #ffffff;
    --primary-color: #2563eb;
    --secondary-color: #475569;
    --text-color: #0f172a;
    --subtle-text-color: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-color: rgba(15, 23, 42, 0.14);
    --hover-shadow-color: rgba(15, 23, 42, 0.25);
    --info-bg-color: #e8f2ff;
    --info-border-color: #b9d4ff;
    --branch-line-color: #8ebd88;
}

body {
    background: radial-gradient(circle at 20% 20%, rgba(37, 99, 235, 0.18), transparent 35%), radial-gradient(circle at 80% 10%, rgba(34, 197, 94, 0.15), transparent 32%), linear-gradient(135deg, #0b1224, #0f172a 50%, #0b1224);
    color: var(--text-color);
    padding: 32px;
}

.container {
    width: 95%;
    max-width: 1100px;
    background: linear-gradient(145deg, #ffffff, #f8fbff);
    border-radius: 18px;
    border: 1px solid var(--border-color);
    box-shadow: 0 18px 50px rgba(15, 23, 42, 0.15);
}

.hero {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    padding-bottom: 12px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

.hero-titles h1 {
    margin: 0;
    font-size: 28px;
}

.hero-titles h2 {
    margin: 6px 0 0 0;
    font-size: 16px;
    color: var(--secondary-color);
    font-weight: 500;
}

.hero-meta {
    display: flex;
    align-items: center;
    gap: 10px;
}

.eyebrow {
    letter-spacing: 0.15em;
    font-size: 12px;
    color: var(--subtle-text-color);
    margin: 0 0 6px 0;
    text-transform: uppercase;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 12px;
    border: 1px solid var(--border-color);
}

.chip.muted { color: var(--secondary-color); background-color: #f8fafc; }
.chip.accent { color: #0b448f; background-color: #e8f2ff; border-color: #bfdbfe; }

.ghost-btn, .primary-btn {
    border-radius: 12px;
    padding: 10px 14px;
    font-weight: 700;
    font-size: 13px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-color);
    transition: all 0.2s ease;
}

.ghost-btn:hover { box-shadow: 0 6px 20px var(--hover-shadow-color); }
.ghost-btn.small { padding: 8px 10px; font-size: 12px; }

.primary-btn {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}
.primary-btn:hover { filter: brightness(0.95); }