/**
 * UAC管理系统通用样式
 * 基于UAC品牌设计系统
 */

/* UAC品牌色彩系统 */
:root {
    --uac-primary: #C8860D;      /* 金色 - 主色调 */
    --uac-secondary: #2C3E50;    /* 深蓝灰 - 辅助色 */
    --uac-accent: #E74C3C;       /* 红色 - 强调色 */
    --uac-dark: #1A1A1A;        /* 深色背景 */
    --uac-light: #F8F9FA;       /* 浅色背景 */
    --uac-text: #2C3E50;        /* 文字色 */
    --uac-text-light: #6C757D;  /* 浅色文字 */
    --uac-white: #FFFFFF;
    --uac-gradient: linear-gradient(135deg, #C8860D 0%, #E74C3C 100%);

    /* 管理系统专用色彩 */
    --admin-bg: #F4F6F9;
    --admin-sidebar: #2C3E50;
    --admin-card: #FFFFFF;
    --admin-border: #E9ECEF;
    --admin-shadow: 0 2px 10px rgba(44, 62, 80, 0.1);

    /* 状态色彩 */
    --success: #28A745;
    --warning: #FFC107;
    --danger: #DC3545;
    --info: #17A2B8;

    /* 字体大小 */
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.25rem;
    --font-2xl: 1.5rem;
    --font-3xl: 1.875rem;

    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* 边框圆角 */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;

    /* 过渡动画 */
    --transition-fast: 0.15s ease-in-out;
    --transition-base: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* 全局重置 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* 字体设置 */
body {
    font-family: 'Noto Sans SC', 'Hind', 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    font-size: var(--font-base);
    line-height: 1.6;
    color: var(--uac-text);
    background-color: var(--admin-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 中文字体优化 */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

/* 链接样式 */
a {
    color: var(--uac-primary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

a:hover {
    color: var(--uac-accent);
    text-decoration: none;
}

/* 按钮基础样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-base);
    font-weight: 500;
    line-height: 1.5;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 主要按钮 */
.btn-primary {
    background: var(--uac-gradient);
    color: var(--uac-white);
    box-shadow: 0 2px 8px rgba(200, 134, 13, 0.3);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(200, 134, 13, 0.4);
}

/* 次要按钮 */
.btn-secondary {
    background: var(--uac-secondary);
    color: var(--uac-white);
}

.btn-secondary:hover:not(:disabled) {
    background: #34495e;
}

/* 表单控件样式 */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--uac-text);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper .input-icon {
    position: absolute;
    left: var(--spacing-md);
    color: var(--uac-text-light);
    z-index: 2;
}

.form-control,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
input[type="datetime-local"],
textarea,
select {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-base);
    line-height: 1.5;
    color: var(--uac-text);
    background: var(--uac-white);
    border: 2px solid var(--admin-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    font-family: inherit;
    appearance: none; /* 移除浏览器默认样式 */
    background-clip: padding-box;
}

/* 专门的select样式 */
select.form-control,
select {
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3E%3Cpath fill='%23666' d='m2 0-2 2h4zm0 5 2-2h-4z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 12px 12px;
    padding-right: 40px;
    cursor: pointer;
    height: auto !important;
    min-height: 42px !important;
    line-height: 1.5 !important;
}

select.form-control option,
select option {
    background: var(--uac-white) !important;
    color: var(--uac-text) !important;
    padding: 10px 12px !important;
    min-height: 36px !important;
    line-height: 2 !important;
    font-size: 14px !important;
    display: block !important;
}

.form-control:focus,
input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--uac-primary);
    box-shadow: 0 0 0 3px rgba(200, 134, 13, 0.1);
}

/* 复选框和单选框样式 */
.form-check {
    position: relative;
    display: block;
    padding-left: 1.25rem;
    margin-bottom: 0.5rem;
}

.form-check-input {
    position: absolute;
    top: 0.25rem;
    left: 0;
    width: 1rem;
    height: 1rem;
    margin: 0;
    cursor: pointer;
    appearance: none;
    background-color: var(--uac-white);
    border: 2px solid var(--admin-border);
    transition: all var(--transition-base);
}

.form-check-input[type="checkbox"] {
    border-radius: 0.25rem;
}

.form-check-input[type="radio"] {
    border-radius: 50%;
}

.form-check-input:checked {
    background-color: var(--uac-primary);
    border-color: var(--uac-primary);
    background-image: url("data:image/svg+xml;charset=utf-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='white' d='M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 12px 12px;
}

.form-check-input[type="radio"]:checked {
    background-image: url("data:image/svg+xml;charset=utf-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='white'/%3e%3c/svg%3e");
}

.form-check-input:focus {
    border-color: var(--uac-primary);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(200, 134, 13, 0.25);
}

.form-check-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.form-check-label {
    cursor: pointer;
    user-select: none;
}

/* 开关样式 */
.form-switch {
    padding-left: 2.5rem;
}

.form-switch .form-check-input {
    width: 2rem;
    margin-left: -2.5rem;
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3E%3Ccircle r='3' fill='rgba%280,0,0,0.25%29'/%3E%3C/svg%3E");
    background-position: left center;
    background-repeat: no-repeat;
    background-size: contain;
    border-radius: 2rem;
    transition: background-position 0.15s ease-in-out;
}

.form-switch .form-check-input:checked {
    background-position: right center;
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3E%3Ccircle r='3' fill='white'/%3E%3C/svg%3E");
}

.form-switch .form-check-input:focus {
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3E%3Ccircle r='3' fill='rgba%280,0,0,0.25%29'/%3E%3C/svg%3E");
}

.form-control.error,
input.error {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

/* 错误消息 */
.error-message {
    color: var(--danger);
    font-size: var(--font-sm);
    margin-top: var(--spacing-xs);
    display: none;
}

.error-message.show {
    display: block;
}

/* 成功消息 */
.success-message {
    color: var(--success);
    font-size: var(--font-sm);
    margin-top: var(--spacing-xs);
}

/* 卡片样式 */
.card {
    background: var(--admin-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--admin-shadow);
    border: 1px solid var(--admin-border);
    overflow: hidden;
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: 0 4px 20px rgba(44, 62, 80, 0.15);
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--admin-border);
    background: var(--uac-light);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--admin-border);
    background: var(--uac-light);
}

/* 语言切换器 */
.language-switcher-fixed {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1000;
}

.language-current {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--uac-white);
    border: 1px solid var(--admin-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--admin-shadow);
}

.language-current:hover {
    border-color: var(--uac-primary);
}

.language-flag {
    width: 20px;
    height: 15px;
    margin-right: var(--spacing-sm);
    border-radius: 2px;
    background-size: cover;
    background-position: center;
}

.language-name {
    margin-right: var(--spacing-sm);
    font-size: var(--font-sm);
    font-weight: 500;
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 150px;
    background: var(--uac-white);
    border: 1px solid var(--admin-border);
    border-radius: var(--radius-md);
    box-shadow: var(--admin-shadow);
    margin-top: var(--spacing-xs);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
}

.language-switcher-fixed:hover .language-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--uac-text);
    transition: all var(--transition-fast);
}

.language-option:hover {
    background: var(--uac-light);
    color: var(--uac-primary);
}

/* 国旗图标 */
.flag-en { background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 60 30"><rect width="60" height="30" fill="%23012169"/><g stroke="%23FFF" stroke-width="6"><path d="m0,0 60,30m0-30L0,30"/></g><g stroke="%23C8102E" stroke-width="4"><path d="m0,0 60,30m0-30L0,30"/></g><path stroke="%23FFF" stroke-width="10" d="M30,0v30M0,15H60"/><path stroke="%23C8102E" stroke-width="6" d="M30,0v30M0,15H60"/></svg>'); }
.flag-zh-cn { background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 60 40"><rect width="60" height="40" fill="%23de2910"/><g fill="%23ffde00"><path d="m7.5,5 7.5,0 2.3,7.1 -6.1,-4.5 -6.1,4.5z"/><path d="m22.5,5 2.5,0 0.7,2.2 -2.0,-1.5 -2.0,1.5z"/><path d="m22.5,10 2.5,0 0.7,2.2 -2.0,-1.5 -2.0,1.5z"/><path d="m22.5,15 2.5,0 0.7,2.2 -2.0,-1.5 -2.0,1.5z"/><path d="m22.5,20 2.5,0 0.7,2.2 -2.0,-1.5 -2.0,1.5z"/></g></svg>'); }
.flag-zh-tw { background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 60 40"><rect width="60" height="40" fill="%23fe0000"/><rect width="30" height="20" fill="%23000095"/><circle cx="15" cy="10" r="6" fill="%23fe0000"/><circle cx="15" cy="10" r="5" fill="%23000095"/></svg>'); }
.flag-de { background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 60 40"><rect width="60" height="13.33" fill="%23000"/><rect width="60" height="13.33" y="13.33" fill="%23dd0000"/><rect width="60" height="13.33" y="26.67" fill="%23ffce00"/></svg>'); }
.flag-ru { background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 60 40"><rect width="60" height="13.33" fill="%23fff"/><rect width="60" height="13.33" y="13.33" fill="%230039a6"/><rect width="60" height="13.33" y="26.67" fill="%23d52b1e"/></svg>'); }

/* 响应式设计 */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
    }

    .language-switcher-fixed {
        top: var(--spacing-md);
        right: var(--spacing-md);
    }

    .btn {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-sm);
    }

    .card-header,
    .card-body,
    .card-footer {
        padding: var(--spacing-md);
    }
}

/* 加载动画 */
.spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 淡入动画 */
.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

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

/* 滑入动画 */
.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}