/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: #ffffff;
    font-family: 'Arial', sans-serif;
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* 标题 */
.header {
    text-align: center;
    margin-bottom: 30px;
}

.header h1 {
    font-size: 2.5rem;
    background: linear-gradient(45deg, #64b5f6, #42a5f5, #2196f3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

/* 修改区域 */
.modify-section {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.button-group {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 按钮样式 */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-width: 120px;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(45deg, #4CAF50, #45a049);
    color: white;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.btn-danger {
    background: linear-gradient(45deg, #f44336, #d32f2f);
    color: white;
    box-shadow: 0 4px 15px rgba(244, 67, 54, 0.3);
}

.btn-success {
    background: linear-gradient(45deg, #2196F3, #1976D2);
    color: white;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
}

.btn-info {
    background: linear-gradient(45deg, #FF9800, #F57C00);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 152, 0, 0.3);
}

.btn-outline {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* 主要内容区域 */
.main-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

/* 图表区域 */
.chart-section {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.chart-container {
    position: relative;
    height: 500px;
    width: 100%;
}

/* 设置区域 */
.settings-section {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.visibility-controls {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.visibility-controls .btn {
    min-width: auto;
    padding: 8px 16px;
    font-size: 0.9rem;
}

/* 火炮列表 */
.cannon-list {
    max-height: 400px;
    overflow-y: auto;
    padding-right: 10px;
}

.author-group {
    margin-bottom: 20px;
}

.author-title {
    font-size: 1.2rem;
    font-weight: bold;
    color: #64b5f6;
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 2px solid rgba(100, 181, 246, 0.3);
}

.cannon-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.cannon-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(5px);
}

.cannon-card.active {
    border-color: #4CAF50;
    background: rgba(76, 175, 80, 0.2);
}

.cannon-card.inactive {
    opacity: 0.4;
    background: rgba(255, 255, 255, 0.05);
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    margin: 5% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-header h2 {
    margin: 0;
    color: #ffffff;
}

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

.close:hover {
    color: #f44336;
}

.modal-body {
    padding: 25px;
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #ffffff;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #4CAF50;
    box-shadow: 0 0 10px rgba(76, 175, 80, 0.3);
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

/* 射程卡片 */
.range-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.range-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 15px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.range-card h4 {
    margin-bottom: 15px;
    color: #64b5f6;
    text-align: center;
}

.trajectory-group {
    margin-bottom: 10px;
}

.trajectory-group label {
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.trajectory-group input {
    padding: 8px;
    font-size: 0.9rem;
}

/* 删除列表 */
.delete-cannon-list {
    max-height: 400px;
    overflow-y: auto;
}

.delete-author-group {
    margin-bottom: 20px;
}

.delete-author-title {
    font-size: 1.1rem;
    font-weight: bold;
    color: #f44336;
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 1px solid rgba(244, 67, 54, 0.3);
}

.delete-cannon-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.delete-cannon-item:hover {
    background: rgba(244, 67, 54, 0.2);
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.cannon-card,
.range-card,
.delete-cannon-item {
    animation: fadeIn 0.3s ease;
}