:root {
    --bg-color: #0f172a;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --distance-color: #ec4899;
    --speed-color: #38bdf8; /* 緑から青基調（Object Aと同期）に変更 */
    --time-color: #f59e0b;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.2);
    --object-a: #38bdf8;
    --object-b: #f472b6;
}

* {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

canvas {
    touch-action: auto;
}

/* Mode Tabs */
.mode-tabs {
    display: flex;
    width: 100%;
    max-width: 400px;
    margin: 0 auto 15px auto;
    background: rgba(0,0,0,0.4);
    border-radius: 8px;
    overflow: hidden;
}
.mode-tab {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 10px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}
.mode-tab.active {
    background: var(--primary);
    color: white;
}

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

.panel-header-controls {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: 0.4rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--glass-border);
}

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

.mode-selection-area {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    width: 100%;
    margin-top: -0.1rem;
}


.mode-select {
    align-self: flex-start;
    width: 240px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    border-radius: 0.4rem;
    padding: 0.3rem 0.5rem;
    color: var(--text-main);
    font-size: 0.85rem;
    cursor: pointer;
}

.mode-select option {
    background-color: #1e293b;
    color: #f8fafc;
}.mode-desc-text {
    width: 100%;
    font-size: 0.8rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.05);
    padding: 0.4rem 0.6rem;
    border-radius: 0.4rem;
    min-height: 1.4rem;
    display: flex;
    align-items: center;
}

/* Mode 1 Specific Info Box */
.mode-info-box {
    margin-top: 0.2rem;
    display: none;
    flex-direction: column;
    gap: 0.4rem;
}

.fixed-param-text {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--speed-color);
}

.progress-slider-container {
    padding: 0.2rem 0;
    position: relative;
    width: 100%;
}

.progress-slider-container input[type="range"] {
    width: 100%;
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
    appearance: none;
    cursor: default;
    margin: 10px 0;
}

.progress-slider-container input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 14px;
    height: 14px;
    background: var(--speed-color);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--speed-color);
}

.slider-ticks {
    display: flex;
    justify-content: space-between;
    padding: 0 5px;
    margin-top: -12px;
    pointer-events: none;
}

.slider-ticks span {
    width: 1px;
    height: 6px;
    background: rgba(255,255,255,0.3);
    position: relative;
}

.slider-ticks span:nth-child(1),
.slider-ticks span:nth-child(6),
.slider-ticks span:nth-child(11) {
    height: 10px;
    background: rgba(255,255,255,0.6);
}

.slider-ticks span::after {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 10px;
    color: var(--text-muted);
    white-space: nowrap;
}

.speed-color-sync {
    color: var(--speed-color) !important;
}

.dist-color-text { color: var(--distance-color) !important; }
.speed-color-text { color: var(--speed-color) !important; }
.time-color-text { color: var(--time-color) !important; }


.playback-controls {
    display: flex;
    gap: 0.5rem;
}

.icon-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.1);
}

@keyframes blink {
    0% { transform: scale(1); box-shadow: 0 0 0px var(--primary); background: var(--glass-bg); }
    50% { transform: scale(1.1); box-shadow: 0 0 15px var(--primary); background: rgba(59, 130, 246, 0.2); }
    100% { transform: scale(1); box-shadow: 0 0 0px var(--primary); background: var(--glass-bg); }
}

.icon-btn.blinking {
    animation: blink 1.2s infinite ease-in-out;
    border-color: var(--primary);
    z-index: 110;
}

body {
    font-family: 'Outfit', 'Noto Sans JP', sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 2rem 1rem;
}

.app-container {
    width: 100%;
    max-width: 1200px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Header */
.app-header {
    text-align: center;
}
.app-header h1 {
    font-size: 2.5rem;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}
.app-header p {
    color: var(--text-muted);
}

/* Top Section Layout */
.top-section {
    display: flex;
    flex-direction: row;
    gap: 2rem;
    padding: 1rem 2rem;
    align-items: center;
    justify-content: center;
    flex-wrap: nowrap; /* Keep them side by side if possible */
    border-top: 1px solid var(--glass-border);
}

/* Circle Container - Reduced Size */
.circle-container {
    width: 180px;
    height: 180px;
    flex-shrink: 0;
    filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.3));
}

.mihaji-circle {
    width: 100%;
    height: 100%;
    overflow: visible;
}

.circle-outline {
    fill: var(--glass-bg);
    stroke: var(--glass-border);
    stroke-width: 4;
    pointer-events: none;
}

.divider-line {
    stroke: var(--glass-border);
    stroke-width: 4;
    stroke-linecap: round;
    pointer-events: none;
}

.wedge {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    opacity: 0.3;
    transform-origin: center;
}

.wedge:hover {
    opacity: 0.6;
    transform: scale(1.02);
}

.wedge.active {
    opacity: 1;
    transform: scale(1.06);
}

/* Base Colors synced with formula labels */
.wedge[data-type="distance"] { fill: var(--distance-color); }
.wedge[data-type="speed"] { fill: var(--speed-color); }
.wedge[data-type="time"] { fill: var(--time-color); }

.label {
    fill: #fff;
    font-weight: 700;
    font-size: 24px;
    pointer-events: none;
    transition: all 0.3s;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}
.label.lg {
    font-size: 32px;
}
.op-label {
    fill: #fff;
    font-size: 36px;
    font-weight: 900;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    text-shadow: 0 0 10px rgba(0,0,0,0.5);
}
.op-label.visible {
    opacity: 1;
}

/* Toggleable Top Section */
.top-details {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 0.5rem;
}

.top-summary {
    padding: 0.8rem 1.5rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 700;
    color: var(--text-muted);
}

.top-summary::-webkit-details-marker {
    display: none;
}

.top-summary:hover {
    background: rgba(255, 255, 255, 0.05);
}

.top-summary .summary-icon::after {
    content: '+';
    font-size: 1.2rem;
    transition: transform 0.3s;
}

.top-details[open] .top-summary .summary-icon::after {
    content: '−';
}

.top-section {
    display: flex;
    flex-direction: row;
    gap: 2rem;
    padding: 1.5rem 2rem;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    border-top: 1px solid var(--glass-border);
    animation: fadeIn 0.4s ease;
}

/* Formula Container inside Top Section */
.formula-container {
    flex-grow: 1;
    min-width: 250px;
    max-width: 450px;
}

.formula-box {
    text-align: center;
    padding: 1rem;
}

.formula-text {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}
.formula-text .operator {
    color: var(--text-muted);
    margin: 0 0.5rem;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.formula-box .placeholder {
    color: var(--text-muted);
    font-size: 1.2rem;
}

/* Controls */
.controls-panel {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 1rem 2rem;
    border-radius: 3rem;
    backdrop-filter: blur(8px);
    flex-wrap: wrap;
    margin: 0 auto;
}

.btn {
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    outline: none;
}

.btn.primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}
.btn.primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}
.btn.primary:active {
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
}

.btn.secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--glass-border);
}
.btn.secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}
.btn.secondary:active {
    transform: translateY(1px);
    background: rgba(255, 255, 255, 0.05);
}

.control-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

input[type=range] {
    accent-color: var(--primary);
    cursor: pointer;
}

/* Bottom Section */
.bottom-section {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

@media (max-width: 900px) {
    .bottom-section {
        grid-template-columns: 1fr;
    }
}

.panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1rem;
    backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
}

.panel-title {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
    text-align: center;
    font-weight: 600;
}

.canvas-wrapper {
    flex-grow: 1;
    position: relative;
    width: 100%;
    height: 350px; 
    min-height: 200px;
    flex-shrink: 0; 
    border-radius: 0.5rem;
    overflow: hidden; /* 強制的に収める */
    background: #0c121e; 
    border: 1px solid rgba(255,255,255,0.05);
}

.panel.movement-wrapper .canvas-wrapper {
    height: 220px;
}

canvas {
    position: absolute;
    top: 0;
    left: 0;
}

/* Direction Popup UI */
.movement-wrapper {
    position: relative;
}

.dir-popup {
    position: absolute;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    padding: 10px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 100;
    transform: translate(-50%, -100%);
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.5);
    margin-top: -15px; /* offset slightly above the circle */
}


.dir-popup.hidden {
    display: none !important;
}

.dir-popup p {
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 2px;
}

.dir-btn {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
    padding: 6px 12px;
    cursor: pointer;
    border-radius: 4px;
    font-weight: bold;
    transition: background 0.2s;
}

/* Info Bubbles */
.info-bubble {
    position: absolute;
    top: 27.5%; /* 距離75の線（上から約27.5%）に上辺を固定 */
    bottom: auto;
    left: 50%;
    transform: scale(0.95) translateX(-50%);
    transform-origin: top center; /* 上を起点に下に広がる */
    background: #ffffff; /* 白背景（不透明）に戻す */
    color: #1e293b;
    border: 3px solid;
    border-radius: 12px;
    padding: 10px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    opacity: 0;
    pointer-events: none;
    transition: 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 50;
    text-align: center;
    width: 260px; /* 幅を260pxに拡大 */
    cursor: pointer; /* クリック可能に */
}

.info-bubble.show {
    opacity: 1;
    transform: scale(1) translateX(-50%);
    pointer-events: auto; /* 表示時はクリックを有効化 */
}

/* Collapsible Content */
.bubble-content {
    max-height: 500px;
    overflow: hidden;
    transition: max-height 0.3s ease-out, opacity 0.2s ease;
    opacity: 1;
    margin-top: 8px;
}

.info-bubble.collapsed .bubble-content {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
}

#bubble-distance, #bubble-distance-2, #bubble-distance-3, #bubble-distance-4, #bubble-distance-5, #bubble-distance-6, #bubble-distance-5-accel, #bubble-distance-5-decel {
    border-color: #38bdf8;
}

#bubble-speed, #bubble-speed-2, #bubble-speed-3, #bubble-speed-4, #bubble-speed-5, #bubble-speed-6, #bubble-speed-5-accel, #bubble-speed-5-decel {
    border-color: #6366f1;
}

.bubble-title {
    font-size: 12px;
    font-weight: bold;
    color: #64748b;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.toggle-icon {
    font-size: 10px;
    transition: transform 0.3s;
    opacity: 0.6;
}

.info-bubble.collapsed .toggle-icon {
    transform: rotate(0deg); /* 閉じている時は横向き（デフォルト）*/
}

.info-bubble:not(.collapsed) .toggle-icon {
    transform: rotate(180deg); /* 展開している時は上向き（または下向き）*/
}

.bubble-formula {
    font-size: 15px;
    font-weight: bold;
    margin-bottom: 8px;
    color: #0f172a;
}
.bubble-formula b {
    color: var(--primary);
    font-size: 20px;
}
.bubble-desc {
    font-size: 12px;
    color: #334155;
    margin: 0;
}

.dir-btn:hover {
    background: rgba(255,255,255,0.3);
}

/* Home Button Styles */
.portal-link-btn-mini {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-main);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.portal-link-btn-mini:hover {
    background: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 6px 15px rgba(59, 130, 246, 0.4);
    color: #fff;
}

@media (max-width: 768px) {
    .app-header h1 {
        font-size: 1.8rem;
    }
    .top-section {
        flex-direction: column;
        padding: 1rem;
    }
    .circle-container {
        width: 140px;
        height: 140px;
    }
    .formula-text {
        font-size: 1.2rem;
    }
    #top-nav {
        top: 10px !important;
        right: 10px !important;
    }
}