/* 全局样式 - Minecraft风格 */
:root {
    --primary-color: #4AAE46; /* Minecraft绿色 */
    --secondary-color: #825432; /* 泥土棕色 */
    --accent-color: #3B8CFF; /* 水蓝色 */
    --dark-color: #222222; /* 暗色 */
    --light-color: #F8F9FA; /* 亮色 */
    --success-color: #5CB85C; /* 成功绿色 */
    --danger-color: #D9534F; /* 危险红色 */
    --warning-color: #F0AD4E; /* 警告黄色 */
    --info-color: #5BC0DE; /* 信息蓝色 */
}

body {
    font-family: 'Microsoft YaHei', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-color);
    color: var(--dark-color);
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="%23f8f9fa" opacity="0.8"/><path d="M0 0L100 100M100 0L0 100" stroke="%23e9ecef" stroke-width="1"/></svg>');
    background-size: 20px 20px;
}

.navbar {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    background-color: var(--dark-color) !important;
    border-bottom: 4px solid var(--primary-color);
}

.navbar-brand {
    font-weight: bold;
    color: var(--light-color) !important;
    text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.2);
    letter-spacing: 1px;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 1rem;
    margin: 0 0.2rem;
}

.navbar-dark .navbar-nav .nav-link:hover {
    color: var(--primary-color);
}

.navbar-dark .navbar-nav .nav-link.active {
    color: var(--primary-color);
    font-weight: bold;
}

.navbar-dark .navbar-nav .nav-link.active:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px 3px 0 0;
}

.footer {
    background-color: var(--dark-color);
    color: var(--light-color);
    padding: 1.5rem 0;
    margin-top: 2rem;
    border-top: 4px solid var(--primary-color);
    box-shadow: 0 -4px 6px rgba(0, 0, 0, 0.1);
}

/* 首页样式 - Minecraft风格 */
.card {
    border: none;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    overflow: hidden;
    background-color: rgba(255, 255, 255, 0.9);
    border-top: 4px solid var(--primary-color);
}

.card-header {
    background-color: rgba(0, 0, 0, 0.03);
    border-bottom: 2px solid rgba(0, 0, 0, 0.05);
    font-weight: bold;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.server-status {
    transition: all 0.3s ease;
    border-radius: 8px;
    overflow: hidden;
}

.server-status:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.server-icon {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border: 2px solid var(--secondary-color);
    padding: 2px;
    background-color: #fff;
}

.player-list {
    max-height: 200px;
    overflow-y: auto;
    border-radius: 4px;
    background-color: rgba(0, 0, 0, 0.02);
    padding: 0.5rem;
}

.player-list .list-group-item {
    background-color: transparent;
    border-color: rgba(0, 0, 0, 0.05);
    transition: all 0.2s ease;
}

.player-list .list-group-item:hover {
    background-color: rgba(0, 0, 0, 0.03);
}

.announcement {
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    background-color: rgba(74, 174, 70, 0.05);
    border-radius: 0 4px 4px 0;
}

/* 提问箱样式 - Minecraft风格 */
.question-form {
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-top: 4px solid var(--primary-color);
    padding: 1.5rem;
}

.question-list {
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-top: 4px solid var(--primary-color);
    padding: 1rem;
}

.question-item {
    border-left: 3px solid var(--secondary-color);
    transition: all 0.2s ease;
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 0 4px 4px 0;
    background-color: rgba(255, 255, 255, 0.7);
}

.question-item:hover {
    border-left-color: var(--primary-color);
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateX(3px);
}

/* 表单样式 - Minecraft风格 */
.form-control {
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
    background-color: rgba(255, 255, 255, 0.9);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(74, 174, 70, 0.25);
    background-color: #fff;
}

.form-select {
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    padding: 0.75rem 1rem;
    height: auto;
    background-color: rgba(255, 255, 255, 0.9);
}

.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(74, 174, 70, 0.25);
    background-color: #fff;
}

/* 按钮样式 - Minecraft风格 */
.btn {
    padding: 0.5rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: none;
}

.btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: rgba(0, 0, 0, 0.2);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    box-shadow: 0 4px 0 rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
    background-color: #3d9c3a;
    border-color: #3d9c3a;
}

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
    box-shadow: 0 4px 0 rgba(0, 0, 0, 0.1);
}

.btn-danger {
    background-color: var(--danger-color);
    border-color: var(--danger-color);
    box-shadow: 0 4px 0 rgba(0, 0, 0, 0.1);
}

.btn-warning {
    background-color: var(--warning-color);
    border-color: var(--warning-color);
    box-shadow: 0 4px 0 rgba(0, 0, 0, 0.1);
}

.btn-info {
    background-color: var(--info-color);
    border-color: var(--info-color);
    box-shadow: 0 4px 0 rgba(0, 0, 0, 0.1);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .card {
        margin-bottom: 1rem;
    }
    
    .server-status {
        margin-bottom: 1.5rem;
    }
}

/* 加载动画 */
.spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 0.2em solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spinner-border .75s linear infinite;
}

@keyframes spinner-border {
    to { transform: rotate(360deg); }
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}