/**
 * 语文湿地 - 全局通用样式
 * 湿地绿色系配色方案
 */

/* ==================== 湿地配色变量 ==================== */
:root {
    --wetland-green: #2d8659;
    --wetland-green-dark: #1a5c3a;
    --wetland-green-light: #4db37f;
    --wetland-teal: #3d9970;
    --wetland-mint: #5cb85c;
    --wetland-lime: #8bc34a;
    --wetland-bg: #f0f7f2;
    --wetland-bg-light: #e8f5e9;
}

/* ==================== 登录引导条 ==================== */
.login-bar {
    background: linear-gradient(135deg, var(--wetland-green) 0%, var(--wetland-teal) 100%);
    color: white;
    padding: 0.5rem 0;
    font-size: 0.9rem;
}

.login-bar a {
    text-decoration: none;
}

/* ==================== 通用布局 ==================== */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--wetland-bg);
}

main {
    flex: 1;
}

/* ==================== 导航栏增强 ==================== */
.navbar {
    background-color: white !important;
    box-shadow: 0 2px 10px rgba(45, 134, 89, 0.1);
}

.navbar-brand {
    font-weight: 700;
    color: var(--wetland-green) !important;
}

.nav-link {
    transition: color 0.2s, background-color 0.2s;
    color: #495057 !important;
}

.nav-link:hover,
.nav-link.active {
    color: var(--wetland-green) !important;
}

/* ==================== 卡片增强 ==================== */
.card {
    border: none;
    border-radius: 1rem;
    box-shadow: 0 0.125rem 0.25rem rgba(45, 134, 89, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(45, 134, 89, 0.15);
}

.card-img-top {
    border-radius: 1rem 1rem 0 0;
}

/* ==================== 按钮样式 ==================== */
.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.2s;
}

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

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

.btn-primary {
    background-color: var(--wetland-green);
    border-color: var(--wetland-green);
}

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

.btn-outline-primary {
    color: var(--wetland-green);
    border-color: var(--wetland-green);
}

.btn-outline-primary:hover {
    background-color: var(--wetland-green);
    border-color: var(--wetland-green);
    color: #fff;
}

.btn-success {
    background-color: var(--wetland-mint);
    border-color: var(--wetland-mint);
}

.btn-success:hover {
    background-color: #4a9f4a;
    border-color: #4a9f4a;
}

.btn-outline-success {
    color: var(--wetland-mint);
    border-color: var(--wetland-mint);
}

.btn-outline-success:hover {
    background-color: var(--wetland-mint);
    border-color: var(--wetland-mint);
    color: #fff;
}

/* ==================== 表单样式 ==================== */
.form-control,
.form-select {
    border-radius: 0.5rem;
    border: 1px solid #dee2e6;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--wetland-green);
    box-shadow: 0 0 0 0.2rem rgba(45, 134, 89, 0.25);
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* ==================== 模态框增强 ==================== */
.modal-content {
    border: none;
    border-radius: 1rem;
}

.modal-header {
    border-bottom: 1px solid var(--wetland-bg);
}

.modal-footer {
    border-top: 1px solid var(--wetland-bg);
}

/* ==================== 徽章 ==================== */
.badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
}

.badge.bg-primary {
    background-color: var(--wetland-green) !important;
}

/* ==================== 分页 ==================== */
.pagination {
    gap: 0.25rem;
}

.page-link {
    border-radius: 0.5rem;
    border: none;
    margin: 0;
    color: var(--wetland-green);
}

.page-link:hover {
    background-color: var(--wetland-bg-light);
    color: var(--wetland-green-dark);
}

.page-item.active .page-link {
    background-color: var(--wetland-green);
    border-color: var(--wetland-green);
}

/* ==================== 表格 ==================== */
.table {
    vertical-align: middle;
}

.table thead th {
    font-weight: 600;
    border-bottom: 2px solid var(--wetland-bg);
    background-color: var(--wetland-bg-light);
}

/* ==================== 加载状态 ==================== */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ==================== 空状态 ==================== */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #6c757d;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
    color: var(--wetland-green-light);
}

/* ==================== 工具类 ==================== */
.text-primary {
    color: var(--wetland-green) !important;
}

.bg-primary {
    background-color: var(--wetland-green) !important;
}

.bg-success {
    background-color: var(--wetland-teal) !important;
}

.bg-warning {
    background-color: var(--wetland-lime) !important;
}

.border-primary {
    border-color: var(--wetland-green) !important;
}

.gradient-primary {
    background: linear-gradient(135deg, var(--wetland-green) 0%, var(--wetland-teal) 100%);
}

.gradient-bg {
    background: linear-gradient(135deg, var(--wetland-bg) 0%, var(--wetland-bg-light) 100%);
}

/* 湿地特色渐变 */
.gradient-wetland {
    background: linear-gradient(135deg, #1a5c3a 0%, #2d8659 50%, #3d9970 100%);
}

.gradient-hero {
    background: linear-gradient(135deg, var(--wetland-green-dark) 0%, var(--wetland-green) 50%, var(--wetland-teal) 100%);
}

/* ==================== 动画 ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

/* ==================== 响应式 ==================== */
@media (max-width: 768px) {
    .card:hover {
        transform: none;
    }

    .btn:hover {
        transform: none;
    }
}

/* ==================== 打印样式 ==================== */
@media print {
    .no-print {
        display: none !important;
    }
}

/* ==================== 辅助功能 ==================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ==================== Footer ==================== */
.footer {
    background: linear-gradient(to bottom, #ffffff 0%, var(--wetland-bg) 100%);
    border-top: 3px solid var(--wetland-green-light);
}

.footer a {
    color: #6c757d;
    text-decoration: none;
}

.footer a:hover {
    color: var(--wetland-green);
}

/* ==================== 统计卡片 ==================== */
.stat-card {
    padding: 2rem;
    border-radius: 1rem;
    background: white;
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(45, 134, 89, 0.15);
}

/* ==================== 功能图标 ==================== */
.feature-icon {
    color: white;
}

.feature-icon.bg-primary {
    background-color: var(--wetland-green) !important;
}

.feature-icon.bg-success {
    background-color: var(--wetland-teal) !important;
}

.feature-icon.bg-warning {
    background-color: var(--wetland-mint) !important;
}

/* ==================== 英雄横幅 ==================== */
.hero-banner {
    position: relative;
    overflow: hidden;
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
    pointer-events: none;
}

/* ==================== 花朵装饰 ==================== */
.flower-decoration {
    opacity: 0.15;
    filter: brightness(0) invert(1);
}