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

:root {
    --primary-color: #FFD700; /* はち歯科のメインカラー：黄色 */
    --accent-color: #000000; /* はち歯科の差し色：黒 */
    --gold-gradient: linear-gradient(135deg, #FFD700, #FFA500);
    --shadow-color: rgba(0, 0, 0, 0.2);
}

body {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    background: linear-gradient(135deg, #fff5e6, #fff);
    color: #333;
    min-height: 100vh;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 8px;
    max-height: 100vh;
    width: min(90vw, calc(100vh - 350px));
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 3px;
    position: relative;
}

.logo {
    max-width: 225px;
    height: auto;
    margin-bottom: 3px;
    transition: transform 0.3s ease;
    cursor: pointer;
}

.logo:hover {
    transform: scale(1.05);
}

header::after {
    content: '';
    display: block;
    width: 100px;
    height: 3px;
    background: var(--gold-gradient);
    margin: 10px auto;
    border-radius: 2px;
}

h1 {
    color: var(--accent-color);
    font-size: clamp(1em, 2.5vw, 1.3em);
    font-weight: bold;
    text-shadow: 2px 2px 4px var(--shadow-color);
    letter-spacing: 2px;
    margin: 3px 0;
}

.subtitle {
    font-size: clamp(0.6em, 2vw, 0.8em);
    color: var(--accent-color);
    margin-top: 2px;
    letter-spacing: 1px;
}

.gacha-container {
    flex: 1;
    background: white;
    border-radius: 20px;
    padding: clamp(6px, 1vh, 12px);
    box-shadow: 0 10px 30px var(--shadow-color);
    text-align: center;
    border: 2px solid var(--primary-color);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    aspect-ratio: 1;
    margin: 3px auto;
}

.gacha-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gold-gradient);
}

.gacha-display {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    background: linear-gradient(135deg, #fff, #fff5e6);
    border-radius: 15px;
    padding: 20px;
    position: relative;
    overflow: hidden;
    border: 2px solid var(--primary-color);
    box-shadow: inset 0 0 20px rgba(255, 215, 0, 0.2);
    width: 100%;
    height: 100%;
}

.gacha-result {
    font-size: 1.3em;
    line-height: 1.6;
    transition: opacity 0.5s ease;
    z-index: 2;
}

/* ガチャボタンのスタイル */
.gacha-button {
    width: clamp(80px, 20vw, 150px);
    height: clamp(80px, 20vw, 150px);
    margin: 6px auto;
    background: var(--gold-gradient);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease, opacity 0.3s ease;
    box-shadow: 0 5px 15px var(--shadow-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: clamp(0.7em, 1.8vw, 1em);
    font-weight: bold;
    color: var(--accent-color);
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
    animation: buttonPulse 2s ease-in-out infinite;
    padding: 6px;
    overflow: hidden;
}

.bunpachi-image {
    width: clamp(50px, 12vw, 80px);
    height: clamp(50px, 12vw, 80px);
    object-fit: contain;
    margin-bottom: 2px;
    transition: transform 0.3s ease;
}

.gacha-button:not(:disabled):hover {
    transform: scale(1.05);
    box-shadow: 0 8px 20px var(--shadow-color);
}

.gacha-button:not(:disabled):hover .bunpachi-image {
    transform: scale(1.1) rotate(5deg);
}

.gacha-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    animation: none;
}

.gacha-button:disabled .bunpachi-image {
    transform: scale(0.95);
}

.gacha-button.hidden {
    opacity: 0;
    pointer-events: none;
}

@keyframes buttonPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* ガチャアイテムのアニメーション */
.gacha-items {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gacha-item {
    position: absolute;
    font-size: 2.5em;
    opacity: 0;
    transition: opacity 0.3s ease;
    text-shadow: 2px 2px 4px var(--shadow-color);
}

.gacha-spinning .gacha-item {
    animation: gachaSpin 0.5s linear infinite;
}

/* 当たり時の演出 */
.win-animation {
    animation: winEffect 1s ease-in-out;
}

.win-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background: radial-gradient(circle, rgba(255,215,0,0.2) 0%, rgba(255,215,0,0) 70%);
    animation: winGlow 2s ease-in-out infinite;
}

/* パーティクルのスタイル */
.particle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--primary-color);
    border-radius: 50%;
    pointer-events: none;
    animation: particleFly 1s ease-out forwards;
}

@keyframes particleFly {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(var(--x, 100px), var(--y, -100px)) scale(0);
        opacity: 0;
    }
}

/* 回転アニメーション用のクラス */
.spinning {
    animation: spin 1s ease-in-out;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 装飾的な要素 */
.gacha-container::after {
    content: '★';
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 24px;
    color: var(--primary-color);
    opacity: 0.5;
}

/* ガチャの回転アニメーション */
@keyframes gachaSpin {
    0% { transform: translateY(100%); }
    100% { transform: translateY(-100%); }
}

.gacha-handle-container {
    position: relative;
    width: 150px;
    height: 150px;
    margin: 0 auto;
    cursor: grab;
}

.gacha-handle {
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--gold-gradient);
    border-radius: 50%;
    border: 4px solid var(--accent-color);
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: transform 0.3s ease;
    cursor: grab;
    user-select: none;
}

.gacha-handle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 60px;
    background: var(--accent-color);
    transform: translate(-50%, -50%);
    border-radius: 10px;
}

.gacha-handle::after {
    content: '回す';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--accent-color);
    font-weight: bold;
    font-size: 1.2em;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.gacha-handle.rotating {
    cursor: grabbing;
    animation: none;
}

.gacha-handle.ready {
    animation: handlePulse 2s ease-in-out infinite;
}

@keyframes handlePulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* ガチャハンドルの回転アニメーション */
@keyframes handleRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 回転の指示テキスト */
.handle-instruction {
    text-align: center;
    margin-top: 20px;
    font-size: 1.1em;
    color: var(--accent-color);
    opacity: 0.8;
}

/* 画面全体のフラッシュ効果 */
.screen-flash {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: white;
    opacity: 0;
    pointer-events: none;
    z-index: 1000;
    animation: flashEffect 0.5s ease-out;
}

@keyframes flashEffect {
    0% { opacity: 0; }
    50% { opacity: 0.8; }
    100% { opacity: 0; }
}

/* 回転エフェクトの強化 */
.gacha-spinning .gacha-item {
    animation: enhancedGachaSpin 0.3s linear infinite;
}

@keyframes enhancedGachaSpin {
    0% { 
        transform: translateY(100%) scale(1);
        filter: blur(0);
    }
    50% {
        transform: translateY(0) scale(1.2);
        filter: blur(2px);
    }
    100% { 
        transform: translateY(-100%) scale(1);
        filter: blur(0);
    }
}

/* キラキラエフェクト */
.sparkle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0;
    z-index: 10;
}

@keyframes sparkleAnimation {
    0% {
        transform: scale(0) rotate(0deg);
        opacity: 0;
    }
    50% {
        transform: scale(1) rotate(180deg);
        opacity: 1;
    }
    100% {
        transform: scale(0) rotate(360deg);
        opacity: 0;
    }
}

/* 当たり演出の強化 */
.win-effect-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.win-circle {
    position: absolute;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    opacity: 0;
    animation: circleExpand 1s ease-out forwards;
}

@keyframes circleExpand {
    0% {
        width: 0;
        height: 0;
        opacity: 1;
    }
    100% {
        width: 200vw;
        height: 200vw;
        opacity: 0;
    }
}

/* ぶんぱちの演出強化 */
.bunpachi-image.spinning {
    animation: bunpachiSpin 1s ease-in-out;
}

@keyframes bunpachiSpin {
    0% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.3) rotate(180deg); }
    100% { transform: scale(1) rotate(360deg); }
}

/* パーティクルの強化 */
.enhanced-particle {
    position: absolute;
    pointer-events: none;
    animation: particleBurst 1.5s ease-out forwards;
    z-index: 100;
}

@keyframes particleBurst {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 1;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translate(var(--x, 100px), var(--y, -100px)) scale(0);
        opacity: 0;
    }
}

/* シャイニングエフェクト */
.shining-effect {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 0%, rgba(255,215,0,0.2) 50%, transparent 100%);
    animation: shiningAnimation 2s ease-in-out infinite;
    pointer-events: none;
}

@keyframes shiningAnimation {
    0% { transform: translateX(-100%) rotate(-45deg); }
    50% { transform: translateX(100%) rotate(-45deg); }
    100% { transform: translateX(-100%) rotate(-45deg); }
}

/* 結果表示の演出強化 */
.result-reveal {
    animation: revealText 0.5s ease-out forwards;
    opacity: 0;
    transform: translateY(20px);
}

.result-heading {
    font-size: clamp(1em, 2.5vw, 1.4em);
    font-weight: bold;
    margin-bottom: 8px;
    animation: winEffect 1s ease-in-out;
}

.lose-message {
    font-size: clamp(1.4em, 3.5vw, 1.8em) !important;
    font-weight: bold;
    margin-bottom: 15px !important;
}

@keyframes revealText {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ホームボタンのスタイル */
.home-button {
    width: clamp(80px, 20vw, 150px);
    height: clamp(80px, 20vw, 150px);
    margin: 6px auto;
    background: var(--gold-gradient);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease, opacity 0.3s ease;
    opacity: 0;
    pointer-events: none;
    position: absolute;
    bottom: clamp(6px, 1vh, 12px);
    left: 50%;
    transform: translateX(-50%);
}

.home-button svg {
    width: clamp(40px, 10vw, 60px);
    height: clamp(40px, 10vw, 60px);
    fill: var(--accent-color);
}

.home-button:hover {
    transform: translateX(-50%) scale(1.05);
    box-shadow: 0 6px 20px var(--shadow-color);
}

/* ホームボタンのアニメーション */
@keyframes homeButtonAppear {
    from {
        opacity: 0;
        transform: translateX(-50%) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) scale(1);
    }
}

.home-button.visible {
    opacity: 1;
    pointer-events: auto;
    animation: homeButtonAppear 0.5s ease-out forwards;
}

/* ウェルカムメッセージのスタイル */
.welcome-message {
    margin-bottom: 8px;
    padding: 8px;
}

.welcome-message p {
    font-size: clamp(0.8em, 1.8vw, 1em);
    line-height: 1.3;
    color: var(--accent-color);
    margin: 2px 0;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.welcome-message p:nth-child(1),
.welcome-message p:nth-child(2) {
    font-size: clamp(1.1em, 2.2vw, 1.4em);
    font-weight: bold;
    margin: 4px 0;
}

.welcome-message p:last-child {
    font-size: clamp(0.9em, 2vw, 1.1em);
    color: var(--primary-color);
    font-weight: bold;
    margin-top: 2px;
}

.hint {
    font-size: clamp(0.6em, 1.5vw, 0.7em);
    color: var(--accent-color);
    opacity: 0.8;
    margin-top: 2px;
}

/* GIF表示用のスタイル */
.gif-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgba(255, 215, 0, 0.5); /* 黄色で50%の透過度 */
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.gif-container.visible {
    opacity: 1;
    visibility: visible;
}

.gif-container img {
    width: min(90vw, calc(100vh - 350px)); /* 中央の四角オブジェクトと同じ幅 */
    height: min(90vw, calc(100vh - 350px)); /* 中央の四角オブジェクトと同じ高さ */
    object-fit: contain;
}

/* 制作者情報のスタイル */
.creator-info {
    position: fixed;
    bottom: 10px;
    right: 10px;
    font-size: clamp(0.6em, 1.2vw, 0.7em);
    color: var(--accent-color);
    opacity: 0.7;
    text-align: right;
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    letter-spacing: 0.05em;
    font-style: italic;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.8));
    padding: 6px 10px;
    border-radius: 12px;
    backdrop-filter: blur(2px);
    transition: opacity 0.3s ease;
    line-height: 1.4;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.creator-info p {
    margin: 0;
}

.creator-info:hover {
    opacity: 1;
}

/* モバイル表示の最適化 */
@media (max-width: 768px) {
    .container {
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: 5px;
    }

    .gacha-container {
        width: 90vw;
        height: 108vw; /* 縦の長さを120%に */
        margin: 10px auto;
        padding: 10px;
        max-width: 90vw;
        max-height: 90vh;
    }

    .welcome-message {
        padding: 10px;
    }

    .welcome-message p {
        font-size: clamp(0.9em, 4vw, 1.2em);
        margin: 3px 0;
    }

    .hint {
        font-size: clamp(0.7em, 3vw, 0.9em);
        margin: 5px 0;
    }

    .logo {
        max-width: 180px; /* 144pxから150%に拡大 */
        margin: 5px auto;
    }

    .gacha-button {
        width: clamp(108px, 27vw, 144px); /* 150%に拡大 */
        height: clamp(108px, 27vw, 144px); /* 150%に拡大 */
        bottom: 10px;
        margin: 0 auto; /* 中央揃え */
    }

    .home-button {
        width: clamp(108px, 27vw, 144px); /* ガチャボタンと同じサイズに */
        height: clamp(108px, 27vw, 144px); /* ガチャボタンと同じサイズに */
        bottom: 10px;
    }

    .home-button svg {
        width: clamp(30px, 7.5vw, 40px); /* アイコンサイズも調整 */
        height: clamp(30px, 7.5vw, 40px); /* アイコンサイズも調整 */
    }

    .gif-container img {
        width: 90vw;
        height: 108vw; /* 縦の長さを120%に */
        max-height: 90vh;
    }
}

/* さらに小さい画面サイズの最適化 */
@media (max-width: 480px) {
    .container {
        padding: 3px;
    }

    .gacha-container {
        width: 95vw;
        height: 114vw; /* 縦の長さを120%に */
        margin: 5px auto;
        padding: 5px;
        max-width: 95vw;
        max-height: 90vh;
    }

    .welcome-message p {
        font-size: clamp(0.8em, 3.5vw, 1.1em);
        margin: 2px 0;
    }

    .hint {
        font-size: clamp(0.6em, 2.5vw, 0.8em);
        margin: 3px 0;
    }

    .logo {
        max-width: 200px; /* 150pxから200pxに拡大 */
        margin: 3px auto;
    }

    .gacha-button {
        width: clamp(90px, 21.6vw, 126px); /* 150%に拡大 */
        height: clamp(90px, 21.6vw, 126px); /* 150%に拡大 */
        bottom: 8px;
        margin: 0 auto; /* 中央揃え */
    }

    .home-button {
        width: clamp(90px, 21.6vw, 126px); /* ガチャボタンと同じサイズに */
        height: clamp(90px, 21.6vw, 126px); /* ガチャボタンと同じサイズに */
        bottom: 8px;
    }

    .home-button svg {
        width: clamp(25px, 6vw, 35px); /* アイコンサイズも調整 */
        height: clamp(25px, 6vw, 35px); /* アイコンサイズも調整 */
    }

    .gif-container img {
        width: 95vw;
        height: 114vw; /* 縦の長さを120%に */
        max-height: 90vh;
    }
}