/* 全局样式 */
:root {
    --primary-color: #10b981;
    --primary-dark: #059669;
    --primary-light: #d1fae5;
    --text-color: #1f2937;
    --bg-color: #f9fafb;
    --card-bg: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
}

/* 动画效果 */
.animate-fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

.animate-slide-up {
    animation: slideUp 0.5s ease-out;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

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

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

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

/* 卡片样式 */
.meal-card {
    transition: all 0.3s ease;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    background-color: var(--card-bg);
}

.meal-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

/* 表单元素样式 */
.form-control {
    transition: border-color 0.2s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* 按钮样式 */
.btn-primary {
    background-color: var(--primary-color);
    color: white;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
}

/* 响应式调整 */
@media (max-width: 640px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .meal-card {
        margin-bottom: 1.5rem;
    }
}

/* 自定义复选框和单选按钮 */
.custom-checkbox input[type="checkbox"],
.custom-radio input[type="radio"] {
    display: none;
}

.custom-checkbox label,
.custom-radio label {
    position: relative;
    padding-left: 30px;
    cursor: pointer;
    display: inline-block;
    margin-right: 15px;
    margin-bottom: 10px;
}

.custom-checkbox label:before,
.custom-radio label:before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 20px;
    height: 20px;
    border: 2px solid #ccc;
    background: #fff;
    transition: all 0.3s ease;
}

.custom-checkbox label:before {
    border-radius: 3px;
}

.custom-radio label:before {
    border-radius: 50%;
}

.custom-checkbox input[type="checkbox"]:checked + label:before,
.custom-radio input[type="radio"]:checked + label:before {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.custom-checkbox input[type="checkbox"]:checked + label:after {
    content: '✓';
    position: absolute;
    left: 5px;
    top: -1px;
    color: white;
    font-size: 14px;
}

.custom-radio input[type="radio"]:checked + label:after {
    content: '';
    position: absolute;
    left: 7px;
    top: 7px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: white;
}

/* 限制提示页样式 */
.limit-notice {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
    padding: 2rem;
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.countdown {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}