/* ===================================
   Hamster Wheel CSS Animation
   纯 CSS 实现的仓鼠跑轮动画
   基于开源 CodePen 项目改进
   =================================== */

.hamster-wheel-wrapper {
    width: 100%;
    max-width: 340px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.hamster-scene {
    position: relative;
    width: 300px;
    height: 240px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(to bottom, #f5f5f5 0%, #e8e8e8 100%);
    border-radius: var(--radius-md);
    overflow: hidden;
}

/* ========== 地面 ========== */
.ground {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40px;
    background: linear-gradient(to bottom, #d4c898 0%, #c4b888 100%);
}

/* ========== 轮子 ========== */
.wheel {
    position: absolute;
    width: 120px;
    height: 120px;
    left: 50%;
    bottom: 40px;
    margin-left: -60px;
    border-radius: 50%;
    border: 8px solid #FF4D4D;
    background-color: #fff;
    animation: wheelSpin 2s linear infinite;
}

.spoke {
    position: absolute;
    width: 2px;
    height: 100%;
    left: 50%;
    top: 0;
    margin-left: -1px;
    background-color: #DEDEDE;
}

.spoke:nth-child(1) { transform: rotate(0deg); }
.spoke:nth-child(2) { transform: rotate(45deg); }
.spoke:nth-child(3) { transform: rotate(90deg); }
.spoke:nth-child(4) { transform: rotate(135deg); }
.spoke:nth-child(5) { transform: rotate(180deg); }
.spoke:nth-child(6) { transform: rotate(225deg); }
.spoke:nth-child(7) { transform: rotate(270deg); }
.spoke:nth-child(8) { transform: rotate(315deg); }

/* 轮子中心 */
.wheel::after {
    content: '';
    position: absolute;
    width: 30px;
    height: 30px;
    left: 50%;
    top: 50%;
    margin-left: -15px;
    margin-top: -15px;
    border-radius: 50%;
    background-color: #E4EB2F;
}

@keyframes wheelSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ========== 仓鼠 ========== */
.hamster {
    position: absolute;
    left: 50%;
    bottom: 80px;
    margin-left: -30px;
    width: 60px;
    height: 40px;
    z-index: 10;
}

.hamster-body {
    position: relative;
    width: 60px;
    height: 40px;
    background-color: #f0e9cc;
    border-radius: 40% 40% 45% 45%;
    animation: hamsterRun 0.4s infinite;
}

/* 耳朵 */
.ear {
    position: absolute;
    width: 12px;
    height: 18px;
    background-color: #b0c4de;
    border-radius: 50% 50% 50% 50% / 70% 70% 30% 30%;
    top: -8px;
}

.ear-left {
    left: 10px;
    transform: rotate(-20deg);
}

.ear-right {
    right: 10px;
    transform: rotate(20deg);
}

/* 脸部 */
.face {
    position: relative;
    top: 8px;
}

/* 眼睛 */
.eye {
    position: absolute;
    width: 4px;
    height: 4px;
    background-color: #000567;
    border-radius: 50%;
    top: 0;
}

.eye-left {
    left: 15px;
}

.eye-right {
    right: 15px;
}

/* 鼻子 */
.nose {
    position: absolute;
    width: 6px;
    height: 6px;
    background-color: #F7F4E9;
    border-radius: 50%;
    left: 50%;
    top: 8px;
    margin-left: -3px;
}

/* 胡须 */
.whisker {
    position: absolute;
    width: 15px;
    height: 1px;
    background-color: rgba(0, 0, 0, 0.3);
    top: 10px;
}

.whisker-left-1 {
    left: 5px;
    transform: rotate(-20deg);
}

.whisker-left-2 {
    left: 5px;
    top: 14px;
    transform: rotate(20deg);
}

.whisker-right-1 {
    right: 5px;
    transform: rotate(20deg);
}

.whisker-right-2 {
    right: 5px;
    top: 14px;
    transform: rotate(-20deg);
}

/* 腿 */
.leg {
    position: absolute;
    width: 8px;
    height: 12px;
    background-color: #D4C898;
    border-radius: 0 0 50% 50%;
    bottom: -8px;
}

.leg-front-left {
    left: 12px;
    animation: legMove 0.4s infinite;
}

.leg-front-right {
    right: 12px;
    animation: legMove 0.4s infinite 0.2s;
}

.leg-back-left {
    left: 28px;
    animation: legMove 0.4s infinite 0.1s;
}

.leg-back-right {
    right: 28px;
    animation: legMove 0.4s infinite 0.3s;
}

/* 尾巴 */
.tail {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: #E6DEBE;
    border-radius: 50%;
    right: -8px;
    top: 15px;
}

/* 动画 */
@keyframes hamsterRun {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-3px);
    }
}

@keyframes legMove {
    0%, 100% {
        transform: rotate(0deg);
    }
    50% {
        transform: rotate(-15deg);
    }
}

/* ========== 水瓶 ========== */
.water-bottle {
    position: absolute;
    right: 30px;
    top: 40px;
    width: 30px;
    height: 60px;
    background-color: #fff;
    border: 2px solid #b0c4de;
    border-radius: 4px;
    overflow: hidden;
}

.bottle-cap {
    position: absolute;
    bottom: -5px;
    left: 50%;
    margin-left: -5px;
    width: 10px;
    height: 10px;
    background-color: #b0c4de;
    border-radius: 50%;
}

.water-level {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background-color: #E0EFFF;
    transition: height 0.5s ease;
}

/* ========== 食物碗 ========== */
.food-bowl {
    position: absolute;
    left: 30px;
    bottom: 40px;
    width: 40px;
    height: 20px;
    background-color: #E4EB2F;
    border: 2px solid #cba920;
    border-radius: 0 0 20px 20px;
    overflow: visible;
}

.food-pellet {
    position: absolute;
    width: 8px;
    height: 8px;
    background-color: #cba920;
    border-radius: 50%;
    bottom: 5px;
}

.food-pellet:nth-child(1) {
    left: 5px;
}

.food-pellet:nth-child(2) {
    left: 15px;
    bottom: 8px;
}

.food-pellet:nth-child(3) {
    left: 25px;
}

.food-pellet.feed-animation {
    animation: feedDrop 0.5s ease-out;
}

@keyframes feedDrop {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ========== 控制按钮 ========== */
.hamster-controls {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--light-color);
}

.hamster-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.hamster-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.hamster-btn:active {
    transform: translateY(0);
}

/* ========== 消息提示 ========== */
.hamster-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: rgba(60, 214, 221, 0.9);
    color: var(--white);
    border-radius: var(--radius-md);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: messageSlide 0.3s ease-out;
    z-index: 100;
}

.hamster-message.fade-out {
    animation: messageFade 0.3s ease-out forwards;
}

@keyframes messageSlide {
    from {
        transform: translate(-50%, -60%);
        opacity: 0;
    }
    to {
        transform: translate(-50%, -50%);
        opacity: 1;
    }
}

@keyframes messageFade {
    to {
        opacity: 0;
        transform: translate(-50%, -40%);
    }
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .hamster-scene {
        width: 280px;
        height: 220px;
    }

    .wheel {
        width: 100px;
        height: 100px;
        margin-left: -50px;
    }
}