/* ============================================
   ATACAJUNTO APP - 公共样式
   common.css - 变量、重置、通用组件
   ============================================ */

/* ===========================
   CSS 变量
   =========================== */
:root {
    /* 主色调 - 爱马仕橙 */
    --primary: #FF8C42;
    --primary-dark: #E67E34;
    --primary-light: #FFB380;
    --primary-alpha: rgba(255, 140, 66, 0.1);
    
    /* 文字颜色 */
    --text-primary: #2C2C2C;
    --text-secondary: #666666;
    --text-muted: #999999;
    --text-white: #FFFFFF;
    
    /* 背景颜色 */
    --bg-white: #FFFFFF;
    --bg-light: #F8F8F8;
    --bg-gray: #EEEEEE;
    --bg-dark: #333333;
    
    /* 边框颜色 */
    --border-light: #E0E0E0;
    --border-medium: #CCCCCC;
    
    /* 状态颜色 */
    --success: #4CAF50;
    --error: #F44336;
    --warning: #FF9800;
    --info: #2196F3;
    
    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --radius-full: 50%;
    
    /* 过渡 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 底部导航栏高度 */
    --nav-bottom-height: 60px;
    
    /* 安全区域（iOS） */
    --safe-area-top: env(safe-area-inset-top, 0px);
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
}

/* ===========================
   CSS 重置
   =========================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-light);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 有底部导航时的 body */
body.has-bottom-nav {
    padding-bottom: calc(var(--nav-bottom-height) + var(--safe-area-bottom));
}

/* 隐藏主页 Header 时的 body */
body.no-main-header .main-header,
body.no-main-header .mobile-menu,
body.no-main-header .mobile-menu-overlay {
    display: none !important;
}

/* 主页 Header 隐藏动画 */
.main-header {
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.main-header.header-hidden {
    opacity: 0;
    transform: translateY(-100%);
    pointer-events: none;
    position: absolute;
    visibility: hidden;
}

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

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* ===========================
   通用布局
   =========================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

.page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.page-content {
    flex: 1;
    padding: 16px;
}

/* Flexbox 工具类 */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.flex-1 { flex: 1; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }

/* ===========================
   表单元素
   =========================== */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background-color: var(--bg-white);
    color: var(--text-primary);
    font-size: 16px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-alpha);
}

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

.form-input.error {
    border-color: var(--error);
}

.form-error {
    color: var(--error);
    font-size: 12px;
    margin-top: 4px;
}

/* 密码输入框容器 */
.password-input-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    padding: 4px;
    font-size: 18px;
}

.password-toggle:hover {
    color: var(--text-secondary);
}

/* ===========================
   按钮
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 16px;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
    white-space: nowrap;
}

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

.btn-block {
    width: 100%;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: var(--primary);
    color: var(--text-white);
}

.btn-text {
    background-color: transparent;
    color: var(--primary);
    padding: 8px 12px;
}

.btn-text:hover {
    background-color: var(--primary-alpha);
}

/* 加载状态按钮 */
.btn.loading {
    position: relative;
    color: transparent !important;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-white);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===========================
   卡片
   =========================== */
.card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: 16px;
    border-bottom: 1px solid var(--border-light);
}

.card-body {
    padding: 16px;
}

.card-footer {
    padding: 16px;
    border-top: 1px solid var(--border-light);
}

/* ===========================
   消息提示
   =========================== */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    font-size: 14px;
}

.alert-success {
    background-color: #E8F5E9;
    color: #2E7D32;
    border: 1px solid #C8E6C9;
}

.alert-error {
    background-color: #FFEBEE;
    color: #C62828;
    border: 1px solid #FFCDD2;
}

.alert-warning {
    background-color: #FFF3E0;
    color: #E65100;
    border: 1px solid #FFE0B2;
}

.alert-info {
    background-color: #E3F2FD;
    color: #1565C0;
    border: 1px solid #BBDEFB;
}

/* ===========================
   Toast 提示
   =========================== */
.toast-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    padding: 12px 20px;
    border-radius: var(--radius-md);
    background-color: var(--bg-dark);
    color: var(--text-white);
    font-size: 14px;
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease;
    pointer-events: auto;
}

.toast.toast-success {
    background-color: var(--success);
}

.toast.toast-error {
    background-color: var(--error);
}

.toast.toast-out {
    animation: toastOut 0.3s ease forwards;
}

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

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

/* ===========================
   加载动画
   =========================== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9998;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-light);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ===========================
   工具类
   =========================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-white { color: var(--text-white); }
.text-orange { color: var(--primary); }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.font-normal { font-weight: 400; }

.text-xs { font-size: 12px; }
.text-sm { font-size: 14px; }
.text-base { font-size: 16px; }
.text-lg { font-size: 18px; }
.text-xl { font-size: 20px; }
.text-2xl { font-size: 24px; }

.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-5 { margin-top: 20px; }
.mt-6 { margin-top: 24px; }

.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-5 { margin-bottom: 20px; }
.mb-6 { margin-bottom: 24px; }

.p-1 { padding: 4px; }
.p-2 { padding: 8px; }
.p-3 { padding: 12px; }
.p-4 { padding: 16px; }

.hidden { display: none !important; }
.visible { display: block !important; }

/* ===========================
   页面过渡动画
   =========================== */
#page-container {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#page-container.page-transition-out {
    opacity: 0;
    transform: translateY(10px);
}

#page-container.page-transition-in {
    animation: fadeInUp 0.3s ease forwards;
}

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

/* 页面加载指示器 */
.page-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 100;
}

.page-loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-gray);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===========================
   离线状态样式
   =========================== */
.offline-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    padding: 40px 20px;
    text-align: center;
}

.offline-message .offline-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.offline-message .offline-icon i {
    font-size: 36px;
    color: var(--text-muted);
}

.offline-message h2 {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.offline-message p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* 需要登录提示 */
.auth-required {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    font-size: 16px;
    color: var(--text-secondary);
}

/* ===========================
   响应式隐藏
   =========================== */
@media (max-width: 768px) {
    .hide-mobile { display: none !important; }
}

@media (min-width: 769px) {
    .hide-desktop { display: none !important; }
}