/**
 * 风景地图样式表
 * @version 2.0.0
 * @author ScenicMap Team
 */

/* ============================================================================
   CSS 变量定义
   ============================================================================ */

:root {
    /* 主色调 */
    --primary-color: #667eea;
    --primary-hover: #5a6fd8;
    --primary-light: rgba(102, 126, 234, 0.1);

    /* 辅助色 */
    --secondary-color: #764ba2;

    /* 功能色 */
    --success-color: #28a745;
    --error-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;

    /* 中性色 */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-placeholder: #999999;
    --border-color: #dddddd;
    --border-hover: #adb5bd;
    --background-light: #f5f5f5;
    --background-dark: #2d3748;

    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* 圆角 */
    --border-radius-sm: 4px;
    --border-radius-md: 6px;
    --border-radius-lg: 8px;
    --border-radius-xl: 12px;

    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.2);

    /* 过渡 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* 字体 */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-sm: 0.85rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.1rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 2rem;
    --line-height: 1.6;
}

/* ============================================================================
   基础样式重置
   ============================================================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height);
    color: var(--text-primary);
    background-color: var(--background-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
    color: var(--primary-hover);
}

/* ============================================================================
   登录页面布局
   ============================================================================ */

.bg-container {
    position: fixed;
    left: 0;
    top: 0;
    width: 45%;
    height: 100vh;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.bg-content {
    color: white;
    max-width: 100%;
    text-align: center;
}

.bg-content h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.bg-content p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.bg-footer {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 0;
    right: 0;
    padding: 0 var(--spacing-xl);
    text-align: center;
}

.bg-footer p {
    font-size: 0.75rem;
    color: #000;
    opacity: 1;
    line-height: 1.5;
}

.bg-footer a {
    color: #000;
    text-decoration: underline;
    transition: opacity var(--transition-fast);
}

.bg-footer a:hover {
    opacity: 0.8;
}

.feature-list {
    text-align: left;
    max-width: 350px;
    margin: 0 auto;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    transition: transform var(--transition-fast);
}

.feature-item:hover {
    transform: translateX(5px);
}

.feature-icon {
    font-size: 1.5rem;
    margin-right: var(--spacing-md);
    min-width: 2rem;
}

.auth-container {
    position: absolute;
    right: 0;
    top: 0;
    width: 55%;
    height: 100vh;
    background: white;
    overflow-y: auto;
}

.auth-container-content {
    padding: var(--spacing-2xl) var(--spacing-xl);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.auth-container-content > * {
    flex-shrink: 0;
}

.auth-container-content .footer {
    margin-top: auto;
}

.logo {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.logo h2 {
    color: var(--primary-color);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.logo p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* ============================================================================
   标签按钮样式
   ============================================================================ */

.tab-buttons {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-xl);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    background: none;
    cursor: pointer;
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    position: relative;
    transition: all var(--transition-normal);
    outline: none;
}

.tab-btn:hover {
    color: var(--primary-color);
    background-color: rgba(102, 126, 234, 0.05);
}

.tab-btn.active {
    color: var(--primary-color);
    font-weight: 600;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-color);
}

/* ============================================================================
   表单样式
   ============================================================================ */

.login-form {
    display: none;
}

.login-form.active {
    display: block;
    animation: fadeIn var(--transition-slow) ease;
}

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

.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-control {
    width: 100%;
    padding: 0.8rem var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    color: var(--text-primary);
    background-color: #fff;
    transition: all var(--transition-normal);
}

.form-control::placeholder {
    color: var(--text-placeholder);
}

.form-control:hover {
    border-color: var(--border-hover);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-control:disabled {
    background-color: var(--background-light);
    cursor: not-allowed;
}

.form-hint {
    display: block;
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.submit-btn {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-weight: 500;
}

.submit-btn:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.submit-btn:active:not(:disabled) {
    transform: translateY(0);
}

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

/* ============================================================================
   注册按钮区域
   ============================================================================ */

.register-section {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.register-section p {
    text-align: center;
    color: var(--text-secondary);
}

.register-buttons {
    display: flex;
    gap: var(--spacing-md);
}

.register-btn {
    flex: 1;
    padding: 0.8rem;
    background: #f8f9fa;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: var(--font-size-base);
    font-weight: 500;
}

.register-btn:hover {
    background: #e9ecef;
    border-color: var(--border-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* ============================================================================
   页脚样式
   ============================================================================ */

.footer {
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* ============================================================================
   响应式设计
   ============================================================================ */

@media (max-width: 992px) {
    .bg-container {
        width: 40%;
    }
    .auth-container {
        width: 60%;
    }
}

@media (max-width: 768px) {
    .bg-container,
    .auth-container {
        position: static;
        width: 100%;
        height: auto;
        padding: var(--spacing-xl);
    }

    .bg-container {
        height: 40vh;
        min-height: 300px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    .bg-content {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .bg-footer {
        position: static;
        padding: 0;
        margin-top: var(--spacing-md);
    }

    .auth-container-content {
        display: block;
        padding: 0;
        min-height: auto;
    }

    .auth-container-content > * {
        flex-shrink: normal;
    }

    .auth-container-content .footer {
        margin-top: var(--spacing-xl);
    }

    .auth-container {
        min-height: calc(100vh - 300px);
    }

    .register-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-2xl: 1.75rem;
    }

    .bg-container {
        padding: var(--spacing-lg);
    }

    .auth-container {
        padding: var(--spacing-lg);
    }

    .bg-content h1 {
        font-size: var(--font-size-2xl);
    }

    .bg-content p {
        font-size: 1rem;
    }
}

/* ============================================================================
   图层控制样式
   ============================================================================ */

.layer-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.layer-control-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--background-light);
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-fast);
}

.layer-control-item:hover {
    background: var(--border-color);
}

.layer-controls input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.layer-controls label {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    cursor: pointer;
    flex: 1;
}

.sidebar__range {
    width: 100%;
    margin-top: var(--spacing-sm);
    cursor: pointer;
}

.sidebar__range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
}

.sidebar__range::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

/* 整合的图层切换控件（已移除透明度控制） */
.sidebar__control--combined {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    width: 100%;
}

.toggle-layer-checkbox {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 44px;
    height: 24px;
    margin: 0;
}

.toggle-layer-checkbox input[type="checkbox"] {
    display: none;
}

/* 切换开关样式 */
.toggle-layer-checkbox .toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.toggle-layer-checkbox .toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* 开启状态 */
.toggle-layer-checkbox input[type="checkbox"]:checked + .toggle-switch {
    background: var(--primary-color);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15), 0 0 8px rgba(102, 126, 234, 0.3);
}

.toggle-layer-checkbox input[type="checkbox"]:checked + .toggle-switch::after {
    transform: translateX(20px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* 悬停效果 */
.toggle-layer-checkbox .toggle-switch:hover {
    border-color: var(--primary-color);
}

.toggle-layer-checkbox input[type="checkbox"]:not(:checked) + .toggle-switch:hover {
    background: rgba(102, 126, 234, 0.1);
}

.toggle-layer-checkbox input[type="checkbox"]:checked + .toggle-switch:hover {
    background: var(--primary-hover);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15), 0 0 12px rgba(102, 126, 234, 0.4);
}

/* 整合控件的响应式设计 */
@media (max-width: 480px) {
    .sidebar__control--combined {
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-sm);
    }

    .opacity-control {
        flex: 1;
        min-width: 0;
    }

    .toggle-layer-checkbox {
        width: 40px;
        height: 22px;
    }

    .toggle-layer-checkbox .toggle-switch {
        width: 40px;
        height: 22px;
        border-radius: 11px;
    }

    .toggle-layer-checkbox .toggle-switch::after {
        width: 18px;
        height: 18px;
    }

    .toggle-layer-checkbox input[type="checkbox"]:checked + .toggle-switch::after {
        transform: translateX(18px);
    }
}

@media (min-width: 481px) and (max-width: 768px) {
    .sidebar__control--combined {
        gap: var(--spacing-md);
    }

    .toggle-layer-checkbox {
        width: 42px;
        height: 23px;
    }

    .toggle-layer-checkbox .toggle-switch {
        width: 42px;
        height: 23px;
        border-radius: 11.5px;
    }

    .toggle-layer-checkbox .toggle-switch::after {
        width: 19px;
        height: 19px;
    }

    .toggle-layer-checkbox input[type="checkbox"]:checked + .toggle-switch::after {
        transform: translateX(19px);
    }
}

/* ============================================================================
   行政区划选择器样式
   ============================================================================ */

.region-selector {
    padding: var(--spacing-md);
}

.region-selector__section {
    margin-bottom: var(--spacing-lg);
}

.region-selector__label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.region-selector__hint {
    font-weight: normal;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-left: var(--spacing-xs);
}

.region-info {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--background-light);
    border-radius: var(--border-radius-sm);
    text-align: center;
}

.region-info__text {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}