/* 基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: #f8f9fa;
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 100%;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

h1 {
    text-align: center;
    color: #212529;
    margin-bottom: 30px;
    font-weight: 600;
    font-size: 1.8rem;
}

/* 实时计时显示区域 */
.timer-display {
    text-align: center;
    margin: 25px 0;
    padding: 25px;
    background-color: #f8f9fa;
    border-radius: 12px;
    color: #212529;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.timer-display:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
}

.time {
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Mono', monospace;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.time-label {
    font-size: 1rem;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* 控制按钮区域 */
.controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.controls button {
    padding: 15px 30px;
    font-size: 1.1rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    min-width: 120px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    letter-spacing: 0.5px;
}

.controls button#startBtn {
    background-color: #28a745;
    color: white;
}

.controls button#startBtn:hover {
    background-color: #218838;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.25);
}

.controls button#startBtn:active {
    transform: translateY(0);
}

.controls button#pauseBtn {
    background-color: #fd7e14;
    color: white;
}

.controls button#pauseBtn:hover {
    background-color: #e06d10;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(253, 126, 20, 0.25);
}

.controls button#pauseBtn:active {
    transform: translateY(0);
}

.controls button#resetBtn {
    background-color: #dc3545;
    color: white;
}

.controls button#resetBtn:hover {
    background-color: #c82333;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.25);
}

.controls button#resetBtn:active {
    transform: translateY(0);
}

/* 添加运动员区域 */
.add-runner {
    display: flex;
    justify-content: center;
    margin: 30px 0;
}

.add-runner button {
    padding: 15px 30px;
    font-size: 1rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    background-color: #007bff;
    color: white;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    letter-spacing: 0.5px;
    min-width: 150px;
}

.add-runner button:hover {
    background-color: #0069d9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.25);
}

.add-runner button:active {
    transform: translateY(0);
}

/* 运动员列表 */
.runner-list h2 {
    color: #212529;
    margin-bottom: 25px;
    font-weight: 600;
    font-size: 1.5rem;
    text-align: center;
    letter-spacing: 0.5px;
}

.runner-list ul {
    list-style-type: none;
    padding: 0;
}

.runner-item {
    display: flex;
    flex-direction: column;
    padding: 25px;
    margin-bottom: 20px;
    background: white;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    border: 1px solid #e9ecef;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
}

.runner-item:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.runner-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    cursor: pointer;
}

.runner-name {
    font-weight: 600;
    font-size: 1.3rem;
    color: #212529;
}

.runner-stats {
    display: flex;
    gap: 25px;
    font-size: 1rem;
    color: #6c757d;
    font-weight: 500;
}

.runner-actions {
    display: flex;
    gap: 12px;
}

.add-lap-btn, .delete-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    font-size: 0.95rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    letter-spacing: 0.3px;
}

.add-lap-btn {
    background-color: #007bff;
    color: white;
}

.add-lap-btn:hover {
    background-color: #0069d9;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 123, 255, 0.2);
}

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

.delete-btn {
    background-color: #dc3545;
    color: white;
}

.delete-btn:hover {
    background-color: #c82333;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(220, 53, 69, 0.2);
}

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

/* 圈数详情 */
.runner-laps {
    margin-top: 25px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 10px;
    display: none;
    border: 1px solid #e9ecef;
    animation: slideDown 0.3s ease;
}

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

.runner-laps.expanded {
    display: block;
}

.lap-item {
    padding: 15px 0;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: fadeIn 0.5s ease;
}

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

.lap-item:last-child {
    border-bottom: none;
}

.lap-time {
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Mono', monospace;
    color: #007bff;
    font-weight: 600;
    font-size: 1.1rem;
}

/* 自定义弹窗样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: #fff;
    margin: 10% auto;
    padding: 0;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
}

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

.modal-header {
    padding: 20px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    color: #333;
    font-size: 1.5rem;
}

.close {
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
}

.close:hover,
.close:focus {
    color: #333;
}

.modal-body {
    padding: 20px;
}

.modal-body p {
    margin: 0 0 15px 0;
    color: #555;
    font-size: 1rem;
}

.modal-body input {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    box-sizing: border-box;
    transition: border-color 0.3s;
}

.modal-body input:focus {
    border-color: #007bff;
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.modal-footer {
    padding: 20px;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.modal-footer button {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

#cancelModalBtn {
    background-color: #f8f9fa;
    color: #333;
    border: 1px solid #ddd;
}

#cancelModalBtn:hover {
    background-color: #e9ecef;
}

#confirmModalBtn {
    background-color: #007bff;
    color: white;
}

#confirmModalBtn:hover {
    background-color: #0069d9;
}

/* 响应式设计 */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }
    
    .container {
        padding: 20px;
        border-radius: 12px;
    }
    
    h1 {
        font-size: 1.6rem;
        margin-bottom: 25px;
    }
    
    .time {
        font-size: 3rem;
    }
    
    .controls {
        gap: 15px;
        margin: 25px 0;
    }
    
    .controls button {
        padding: 13px 25px;
        font-size: 1rem;
        min-width: 100px;
    }
    
    .add-runner {
        margin: 25px 0;
    }
    
    .add-runner button {
        padding: 13px 25px;
        font-size: 0.95rem;
        min-width: 130px;
    }
    
    .runner-item {
        padding: 20px;
        margin-bottom: 15px;
    }
    
    .runner-name {
        font-size: 1.2rem;
    }
    
    .runner-stats {
        font-size: 0.95rem;
        gap: 20px;
    }
    
    .add-lap-btn, .delete-btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .runner-laps {
        margin-top: 20px;
        padding: 15px;
    }
    
    .lap-item {
        padding: 12px 0;
    }
    
    .lap-time {
        font-size: 1rem;
    }
    
    .modal-content {
        margin: 20% auto;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .container {
        padding: 15px;
    }
    
    h1 {
        font-size: 1.4rem;
    }
    
    .time {
        font-size: 3rem;
    }
    
    .controls {
        gap: 10px;
    }
    
    .controls button {
        padding: 12px 20px;
        min-width: 90px;
        font-size: 0.9rem;
    }
    
    .add-runner button {
        width: 100%;
        border-radius: 8px;
    }
    
    .runner-item-header {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .runner-stats {
        width: 100%;
        order: 3;
        justify-content: space-around;
    }
    
    .runner-actions {
        order: 2;
    }
    
    .runner-name {
        font-size: 1.1rem;
    }
    
    .modal-header {
        padding: 15px;
    }
    
    .modal-header h2 {
        font-size: 1.3rem;
    }
    
    .modal-body {
        padding: 15px;
    }
    
    .modal-body p {
        font-size: 0.95rem;
    }
    
    .modal-body input {
        padding: 12px;
        font-size: 0.95rem;
    }
    
    .modal-footer {
        padding: 15px;
    }
    
    .modal-footer button {
        padding: 10px 20px;
        font-size: 0.95rem;
    }
}