:root {
    --bg-color: #ffffff;
    --text-color: #111827;
    --accent-color: #2563eb;
    --accent-glow: rgba(37, 99, 235, 0.25);
    --glass-bg: rgba(15, 23, 42, 0.92);
    --glass-border: rgba(148, 163, 184, 0.6);
    --font-main: 'Zen Kaku Gothic New', sans-serif;
    --map-ocean-bg: #e0f2fe;
}

.dart-page-root,
.dart-page-root * {
    box-sizing: border-box;
}

.dart-page-root * {
    margin: 0;
    padding: 0;
}

.dart-page-root {
    font-family: var(--font-main);
    color: var(--text-color);
    padding: 2rem 1rem;
}

.app-container {

    width: 100%;
    max-width: 1200px;
    min-height: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    margin: 0 auto 3rem;
    position: relative;
    padding-bottom: 6rem;
    background-color: #ffffff;
    border-radius: 1rem;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

.dart-page-root header {
    text-align: center;
    margin-bottom: 2rem;
    z-index: 10;
}

.dart-page-root h1 {
    background: none;
    border: none;
    color: #ffffff;
    font-size: 3rem;
    font-weight: 900;
    letter-spacing: 0.1em;
    text-shadow: 0 0 20px var(--accent-glow);
    margin-bottom: 0.5rem;
}

.article .dart-page-root h2 {
    margin-bottom: 1rem;
    background: none;
    border: none;
    color: #ffffff;
}

.dart-page-root p {
    color: #6b7280;
}

.subtitle {
    font-size: 1rem;
    color: var(--accent-color);
    display: block;
    letter-spacing: 0.3em;
    margin-top: 0.5rem;
}

.dart-page-root main {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.dart-page-root .map-container {
    width: min(95vw, 800px);
    aspect-ratio: 1/1;
    position: relative;
    margin-bottom: 2rem;
	background-color: var(--map-ocean-bg);
	border-radius: 12px;
	padding: 50px;
}

.japan-svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 10px var(--accent-glow));
}

.japan-map-placeholder {
    width: 100%;
    height: 100%;
    position: relative; /* ダーツの基準をここにする */
}

/* Dart Animation */
.dart {
    position: absolute;
    font-size: 3rem;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 20;
    pointer-events: none;
}

.dart.hidden {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0);
}

.dart.flying {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.5);
    animation: dart-shake 0.5s ease-in-out infinite;
}

.dart.landed {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

@keyframes dart-shake {

    0%,
    100% {
        transform: translate(-50%, -50%) scale(1.5) rotate(0deg);
    }

    25% {
        transform: translate(-50%, -50%) scale(1.5) rotate(-5deg);
    }

    75% {
        transform: translate(-50%, -50%) scale(1.5) rotate(5deg);
    }
}

/* Controls */
.dart-page-root .controls {
    z-index: 50;
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    text-align: center;
    pointer-events: none;
}

.dart-page-root .darts-btn-primary {
    pointer-events: auto;
    background: linear-gradient(135deg, var(--accent-color), #0ea5e9);
    border: none;
    padding: 1rem 3rem;
    border-radius: 50px;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 0 20px var(--accent-glow);
    font-family: var(--font-main);
    text-decoration: none;
}

.dart-page-root .darts-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--accent-glow);
}

.darts-btn-primary:active {
    transform: translateY(1px);
}

.btn-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: skewX(-20deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% {
        left: -100%;
    }

    20% {
        left: 200%;
    }

    100% {
        left: 200%;
    }
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    opacity: 1;
    transition: opacity 0.3s;
}

.modal.hidden {
    opacity: 0;
    pointer-events: none;
    display: none;
}

.modal-content {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 20px;
    width: 90%;
    max-width: 600px;
    text-align: center;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
    transform: scale(1);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    color: #f9fafb;
}

.modal.hidden .modal-content {
    transform: scale(0.8);
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: #f9fafb;
    font-size: 2rem;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.close-btn:hover {
    opacity: 1;
}

.result-location {
    margin: 2rem 0;
}

.pref-name {
    display: block;
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.city-name {
    display: block;
    font-size: 3rem;
    font-weight: 900;
}

.map-embed-container {
    width: 100%;
    height: 300px;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
}

.share-actions {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
}

.darts-btn-secondary {
    pointer-events: auto;
    background: transparent;
    border: 1px solid var(--accent-color);
    padding: 0.75rem 1.75rem;
    border-radius: 999px;
    color: var(--accent-color);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: background-color 0.2s, color 0.2s, box-shadow 0.2s;
    text-decoration: none;
}

.darts-btn-secondary:hover {
    background: var(--accent-color);
    color: #0f172a;
    box-shadow: 0 0 16px var(--accent-glow);
}