/* =========================================================
   TM-License 管理平台 — 参考 TM-IOT 设计语言
   Bootstrap 5.3 + Bootstrap Icons
   ========================================================= */

/* ---- CSS 自定义变量 ---- */
:root {
    --sidebar-width: 200px;
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #dbeafe;
    --success-color: #10b981;
    --success-light: #d1fae5;
    --warning-color: #f59e0b;
    --warning-light: #fef3c7;
    --danger-color: #ef4444;
    --danger-light: #fee2e2;
    --info-color: #06b6d4;
    --info-light: #cffafe;
    --bg-color: #f1f5f9;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 2px 6px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
}

/* ---- 全局 ---- */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    font-size: 12.5px;
    line-height: 1.35;
    color: var(--text-primary);
    margin: 0;
}

/* ---- 侧边栏 ---- */
.sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    background: linear-gradient(180deg, #3b82f6 0%, #1d4ed8 100%);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.sidebar-brand {
    height: 3rem;
    display: flex;
    align-items: center;
    padding: 0 0.9rem;
    color: white;
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    letter-spacing: 0.3px;
}

.sidebar-brand:hover { color: white; text-decoration: none; }

.sidebar-divider {
    border-top: 1px solid rgba(255,255,255,0.12);
    margin: 0.3rem 0;
}

/* 导航项 */
.sidebar .nav-link {
    color: rgba(255,255,255,0.9);
    padding: 0.5rem 0.9rem;
    display: block;
    text-decoration: none;
    font-size: 12.5px;
    font-weight: 500;
    transition: all 0.15s ease;
    border-left: 3px solid transparent;
    border-radius: 0;
}

.sidebar .nav-link:hover {
    color: white;
    background-color: rgba(255,255,255,0.12);
    border-left-color: rgba(255,255,255,0.7);
}

.sidebar .nav-link.active {
    color: white;
    font-weight: 600;
    background-color: rgba(255,255,255,0.18);
    border-left-color: white;
}

.sidebar .nav-link i { margin-right: 0.4rem; font-size: 13px; }

/* ---- 内容区域 ---- */
.content-wrapper {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.topbar {
    height: 3rem;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    padding: 0 0.9rem;
}

.content {
    flex: 1;
    padding: 0.6rem 0.8rem;
}

.footer {
    background-color: var(--card-bg);
    padding: 0.5rem 0.8rem;
    border-top: 1px solid var(--border-color);
    font-size: 11px;
    color: var(--text-secondary);
}

/* ---- 卡片 ---- */
.card {
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    margin-bottom: 0.6rem;
    border-radius: 4px;
    background: var(--card-bg);
    transition: box-shadow 0.15s ease;
}

.card:hover { box-shadow: var(--shadow-md); }

.card-header {
    background-color: #f8fafc;
    border-bottom: 1px solid var(--border-color);
    padding: 0.45rem 0.7rem;
    font-size: 13px;
    font-weight: 600;
}

.card-body { padding: 0.7rem; }

/* ---- 统计卡片 ---- */
.stat-card {
    border-left: 3px solid;
    padding: 0.7rem;
    background: var(--card-bg);
}

.stat-card.stat-primary  { border-left-color: var(--primary-color); }
.stat-card.stat-success  { border-left-color: var(--success-color); }
.stat-card.stat-warning  { border-left-color: var(--warning-color); }
.stat-card.stat-danger   { border-left-color: var(--danger-color); }
.stat-card.stat-info     { border-left-color: var(--info-color); }

.stat-card .stat-value {
    font-size: 26px;
    font-weight: 800;
    margin: 0.15rem 0;
    color: var(--text-primary);
}

.stat-card .stat-label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    font-weight: 700;
}

.stat-card .stat-icon {
    font-size: 30px;
    opacity: 0.9;
}

/* ---- 标题 ---- */
.page-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* ---- 表格 ---- */
.table {
    font-size: 12px;
    margin-bottom: 0;
    background: var(--card-bg);
}

.table thead.table-dark th {
    background-color: #1e293b;
    border-color: #334155;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 0.45rem 0.5rem;
}

.table th {
    font-weight: 600;
    padding: 0.4rem 0.5rem;
    background-color: #f1f5f9;
    border-bottom: 2px solid #cbd5e1;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.table td {
    padding: 0.4rem 0.5rem;
    vertical-align: middle;
}

.table-hover tbody tr:hover { background-color: #f1f5f9; }

/* ---- 按钮 ---- */
.btn {
    font-size: 12px;
    padding: 0.3rem 0.6rem;
    border-radius: 3px;
    font-weight: 500;
    transition: all 0.15s ease;
}

.btn-sm {
    padding: 0.2rem 0.45rem;
    font-size: 11px;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(59,130,246,0.3);
}

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

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

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

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

/* ---- 表单 ---- */
.form-control, .form-select {
    font-size: 12px;
    padding: 0.35rem 0.55rem;
    border-radius: 3px;
    border: 1px solid var(--border-color);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(59,130,246,0.15);
    outline: none;
}

.form-label {
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--text-secondary);
}

/* ---- 徽章 ---- */
.badge {
    font-size: 10px;
    padding: 0.18em 0.45em;
    font-weight: 600;
    letter-spacing: 0.2px;
    border-radius: 3px;
}

.bg-success  { background-color: var(--success-color) !important; }
.bg-primary  { background-color: var(--primary-color) !important; }
.bg-warning  { background-color: var(--warning-color) !important; }
.bg-danger   { background-color: var(--danger-color) !important; }
.bg-info     { background-color: var(--info-color) !important; }
.bg-secondary { background-color: #94a3b8 !important; }

/* ---- 提示框 ---- */
.alert {
    padding: 0.5rem 0.7rem;
    font-size: 12px;
    border-radius: 3px;
    margin-bottom: 0.6rem;
    border-width: 1px;
}

/* ---- 链接 ---- */
a { color: var(--primary-color); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* ---- 滚动条 ---- */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: #c1c1c1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #a1a1a1; }

/* ---- 登录页 ---- */
.login-page {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    width: 400px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    padding: 2rem;
}

.login-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    text-align: center;
}

.login-card .btn-login {
    background-color: var(--primary-color);
    border: none;
    font-size: 13px;
    font-weight: 600;
    padding: 0.5rem;
}

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

/* ---- Text helpers ---- */
.text-primary   { color: var(--primary-color) !important; }
.text-success   { color: var(--success-color) !important; }
.text-warning   { color: var(--warning-color) !important; }
.text-danger    { color: var(--danger-color) !important; }
.text-info      { color: var(--info-color) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted     { color: var(--text-secondary) !important; }