reactagram v.0.1 - useParams, useNavigate, useLocation, запросы

different files.jsx

App.jsx:

import {
    BrowserRouter,
    Routes,
    Route,
    NavLink,
    Link,
    Outlet,
    Navigate,
    useParams,
    useNavigate,
    useLocation
} from 'react-router';
import './App.css';
import {useState, useEffect, createContext, useContext, useMemo, useRef} from "react";

const UsersContext = createContext();

export function UsersProvider({children}) {
    const [loading, setLoading] = useState(true);
    const [error, setError] = useState(null);
    const cachedUsersRef = useRef(null);
    const [, forceUpdate] = useState(0);

    useEffect(() => {
        async function fetchUsers() {
            try {
                setLoading(true);
                setError(null);
                const response = await fetch('https://randomuser.me/api/?results=1000');
                // загрузка данных через API с useEffect
                if (!response.ok) {
                    throw new Error('Ошибка загрузки пользователей');
                }
                const data = await response.json();
                if (!cachedUsersRef.current) {
                    cachedUsersRef.current = data.results;
                    forceUpdate(n => n + 1);
                }
            } catch (err) {
                setError(err.message);
            } finally {
                setLoading(false);
            }
        }

        fetchUsers();
    }, []);

    return (
        <UsersContext.Provider
            value={{
                users: cachedUsersRef.current || [],
                loading,
                error,
            }}
        >
            {children}
        </UsersContext.Provider>
    );
}

export function useUsers() {
    return useContext(UsersContext);
}

function Home() {
    const {users, loading: usersLoading, error: usersError} = useUsers();
    const [cachedUsers, setCachedUsers] = useState(null);

    useEffect(() => {
        if (!usersLoading && users?.length && !cachedUsers) {
            setCachedUsers(users);
        }
        // загрузка данных через API с useEffect
    }, [usersLoading, users, cachedUsers]);

    if (!cachedUsers) {
        if (usersError) {
            return (
                <div className="page-content">
                    <h1 className="page-title">Ошибка</h1>
                    <p className="about-text">{usersError}</p>
                </div>
            );
        }
        return (
            <div className="page-content">
                <h1 className="page-title">Загрузка...</h1>
            </div>
        );
    }

    const getUserById = (id) => {
        const index = id - 1;
        return cachedUsers[index] ?? null;
    };

    const user1 = getUserById(1);
    const user2 = getUserById(2);

    // url /users/1 показывает профиль конкретного пользователя
    return (
        <div className="page-content">
            <h1 className="page-title home-title">Лента</h1>
            <div className="post">
                <div className="post-header">
                    <div className="post-author-wrapper">
                        <span className="post-avatar"></span>
                        <Link to="/users/1" className="post-author">
                            {user1?.login.username ?? "Неизвестный"}
                        </Link>
                    </div>
                    <span className="post-time">1м назад</span>
                </div>
                <div className="post-content">Красивый закат в Одессе! #природа #море</div>
                <div className="post-actions">
                    <button className="action-button like">Лайк</button>
                    <Link to="/messages" className="action-button comment">Комментировать</Link>
                </div>
            </div>
            <div className="post">
                <div className="post-header">
                    <div className="post-author-wrapper">
                        <span className="post-avatar"></span>
                        <Link to="/users/2" className="post-author">
                            {user2?.login.username ?? "Неизвестный"}
                        </Link>
                    </div>
                    <span className="post-time">2м назад</span>
                </div>
                <div className="post-content">Вылазка на Говерлу! #путешествия #горы</div>
                <div className="post-actions">
                    <button className="action-button like">Лайк</button>
                    <Link to="/messages" className="action-button comment">Комментировать</Link>
                </div>
            </div>
            <div className="link-group">
                <Link to="/profile" className="page-link">Перейти к профилю</Link>
                <Link to="/search" className="page-link">Найти друзей</Link>
            </div>
        </div>
    );
}

function UserProfile() {
    const {id} = useParams(); // хук useParams получает параметры из URL
    const {users, loading: usersLoading, error: usersError} = useUsers();

    const userId = parseInt(id, 10);

    const user = useMemo(() => {
        if (!Array.isArray(users) || users.length === 0) return null;
        if (isNaN(userId) || userId < 1 || userId > users.length) return null;
        return users[userId - 1];
    }, [userId, users]);

    if (usersLoading) {
        return (
            <div className="page-content">
                <h1 className="page-title">Загрузка...</h1>
            </div>
        );
    }

    if (usersError) {
        return (
            <div className="page-content">
                <h1 className="page-title">Ошибка</h1>
                <p className="about-text">{usersError}</p>
                <div className="link-group">
                    <Link to="/" className="page-link">Вернуться в ленту</Link>
                </div>
            </div>
        );
    }

    if (!user) {
        return (
            <div className="page-content">
                <h1 className="page-title">Пользователь не найден</h1>
                <div className="link-group">
                    <Link to="/" className="page-link">Вернуться в ленту</Link>
                </div>
            </div>
        );
    }

    // {'url /users/:id показывает профиль конкретного пользователя'}
    return (
        <div className="page-content">
            <h1 className="page-title profile-title">Профиль пользователя #{id}</h1>

            <div className="profile-info">
                <div className="profile-header">
                    <div className="profile-avatar">
                        <img
                            src={user.picture.large}
                            alt="Avatar"
                            style={{width: "100%", height: "100%", borderRadius: "50%"}}
                        />
                    </div>
                    <div className="profile-details">
                        <span className="profile-username">{user.login.username}</span>
                        <p>{user.name.first} {user.name.last}</p>
                        <p>{user.email}</p>
                        <p>{user.location.city}, {user.location.country}</p>
                    </div>
                </div>
                <div className="profile-stats">
                    <span>{Math.floor(Math.random() * 100)} постов</span>
                    <span>{Math.floor(Math.random() * 1000)} подписчиков</span>
                    <span>{Math.floor(Math.random() * 500)} подписок</span>
                </div>
            </div>
            <div className="link-group">
                <Link to="/" className="page-link">Вернуться в ленту</Link>
                <Link to="/search" className="page-link">Поиск</Link>
            </div>
        </div>
    );
}

function ProfilePosts() {
    const [activePost, setActivePost] = useState(0);

    const posts = [
        "Поехать согласилась только крыша…",
        "Пойди приляг. Желательно на рельсы.",
        "Контрольный выстрел мало что исправил…",
        "Бежать за пивом помешали ноги.",
        "Кругом такое!.. Хоть иди участвуй.",
        "Сегодня дел полно! Во-первых, завтрак…"
    ];

    return (
        <div className="profile-content">
            <h2>Мои посты</h2>
            {posts.map((post, index) => (
                <div
                    key={index}
                    className={`post ${activePost === index ? 'active' : ''}`}
                    onClick={() => setActivePost(index)}
                >
                    {post}
                </div>
            ))}
        </div>
    );
}

function ProfileSettings() {
    return (
        <div className="profile-content">
            <h2>Настройки профиля</h2>
            <h4>Тут какие-нибудь настройки профиля</h4>
        </div>
    );
}

function Profile() {
    return (
        <div className="page-content">
            <h1 className="page-title profile-title">Мой профиль</h1>
            <div className="profile-info">
                <div className="profile-header">
                    <div className="profile-avatar"></div>
                    <div className="profile-details">
                        <span className="profile-username">sunmeat</span>
                        <button className="profile-edit">Редактировать профиль</button>
                    </div>
                </div>
                <div className="profile-stats">
                    <span>6 постов</span>
                    <span>1.2K подписчиков</span>
                    <span>350 подписок</span>
                </div>
            </div>
            <div className="profile-nav">
                <NavLink to="posts"
                         className={({isActive}) => isActive ? "nav-link active" : "nav-link"}>Посты</NavLink>
                <NavLink to="settings"
                         className={({isActive}) => isActive ? "nav-link active" : "nav-link"}>Настройки</NavLink>
            </div>
            <Outlet/>
            <div className="link-group">
                <Link to="/" className="page-link">Вернуться в ленту</Link>
                <Link to="/messages" className="page-link">Сообщения</Link>
                <Link to="/search" className="page-link">Поиск</Link>
            </div>
        </div>
    );
}

function MessagesInbox() {
    // url /users/793 показывает профиль конкретного пользователя
    return (
        <div className="messages-content">
            <h2>Входящие</h2>
            <div className="message">
                <div className="message-sender-wrapper">
                    <span className="message-avatar"></span>
                    <Link to="/users/215" className="message-sender">Вася</Link>
                </div>
                <span className="message-preview">Шо ты там?</span>
            </div>
            <div className="message">
                <div className="message-sender-wrapper">
                    <span className="message-avatar"></span>
                    <Link to="/users/793" className="message-sender">Лена</Link>
                </div>
                <span className="message-preview">Ты помнишь, что у меня завтра важное?</span>
            </div>
        </div>
    );
}

function MessagesSent() {
    return (
        <div className="messages-content">
            <h2>Отправленные</h2>
            <div className="message">
                <div className="message-sender-wrapper">
                    <span className="message-avatar"></span>
                    <Link to="/profile" className="message-sender">sunmeat</Link>
                </div>
                <span className="message-preview">Да, помню, удачи!</span>
            </div>
        </div>
    );
}

function Messages() {
    return (
        <div className="page-content">
            <h1 className="page-title messages-title">Сообщения</h1>
            <div className="messages-nav">
                <NavLink to="inbox"
                         className={({isActive}) => isActive ? "nav-link active" : "nav-link"}>Входящие</NavLink>
                <NavLink to="sent"
                         className={({isActive}) => isActive ? "nav-link active" : "nav-link"}>Отправленные</NavLink>
            </div>
            <Outlet/>
            <div className="link-group">
                <Link to="/" className="page-link">Вернуться в ленту</Link>
                <Link to="/profile" className="page-link">Профиль</Link>
            </div>
        </div>
    );
}

function Search() {
    const [searchTerm, setSearchTerm] = useState('');
    const [filteredUsers, setFilteredUsers] = useState([]);
    const [searchLoading, setSearchLoading] = useState(false);
    const navigate = useNavigate(); // useNavigate позволяет программно переходить между страницами
    const location = useLocation(); // useLocation предоставляет доступ к текущему URL и его частям
    const {users, loading: usersLoading, error: usersError} = useUsers();

    const searchParams = new URLSearchParams(location.search);
    // запросы позволяют обрабатывать дополнительные параметры в URL
    const query = searchParams.get('q') || '';

    useEffect(() => {
        if (query) {
            setSearchTerm(query);
            handleSearch(query);
        }
    }, [query, users]);

    const handleSearch = (term) => {
        if (!term.trim()) {
            setFilteredUsers([]);
            return;
        }
        setSearchLoading(true);
        setTimeout(() => {
            const results = users.filter(user => {
                const firstName = user.name.first.toLowerCase();
                const lastName = user.name.last.toLowerCase();
                const username = user.login.username.toLowerCase();
                const searchTerm = term.toLowerCase();
                return firstName.includes(searchTerm) ||
                    lastName.includes(searchTerm) ||
                    username.includes(searchTerm);
            });
            setFilteredUsers(results);
            setSearchLoading(false);
        }, 300);
    };

    const handleInputChange = (e) => {
        const value = e.target.value;
        setSearchTerm(value);
        const params = new URLSearchParams();
        if (value.trim())
            params.set('q', value);

        const queryString = params.toString();
        navigate(`/search${queryString ? `?${queryString}` : ''}`, {replace: true});
        // useNavigate позволяет программно переходить между страницами
    };

    if (usersLoading) {
        return (
            <div className="page-content">
                <h1 className="page-title search-title">Поиск</h1>
                <p>Загрузка базы пользователей...</p>
            </div>
        );
    }

    if (usersError) {
        return (
            <div className="page-content">
                <h1 className="page-title search-title">Поиск</h1>
                <p>Ошибка загрузки пользователей: {usersError}</p>
                <div className="link-group">
                    <Link to="/" className="page-link">Вернуться в ленту</Link>
                </div>
            </div>
        );
    }

    return (
        <div className="page-content">
            <h1 className="page-title search-title">Поиск</h1>
            <div className="search-bar">
                <input
                    type="text"
                    placeholder="Поиск пользователей..."
                    value={searchTerm}
                    onChange={handleInputChange}
                />
            </div>
            {searchLoading && <p>Поиск...</p>}
            {filteredUsers.length > 0 && (
                <div className="search-results">
                    {filteredUsers.map((user, index) => {
                        const originalIndex = users.findIndex(u => u.login.uuid === user.login.uuid) + 1;
                        return (
                            <div key={user.login.uuid} className="search-result">
                                <div className="result-wrapper">
                                    <span className="result-avatar">
                                        <img src={user.picture.thumbnail} alt="Avatar"
                                             style={{width: '40px', height: '40px', borderRadius: '50%'}}/>
                                    </span>
                                    <Link to={`/users/${originalIndex}`}
                                          className="result-item">{user.login.username}</Link>
                                </div>
                                <span
                                    className="result-bio">{user.name.first} {user.name.last} - {user.location.city}</span>
                            </div>
                        );
                    })}
                </div>
            )}
            {searchTerm && !searchLoading && filteredUsers.length === 0 && users.length > 0 && (
                <p>Пользователи не найдены</p>
            )}
            <div className="link-group">
                <Link to="/" className="page-link">Вернуться в ленту</Link>
                <Link to="/profile" className="page-link">Профиль</Link>
            </div>
        </div>
    );
}

function About() {
    return (
        <div className="page-content">
            <h1 className="page-title about-title">Reactagram</h1>
            <p className="about-text">Добро пожаловать в наше приложение! Делись моментами, находи друзей и
                вдохновляйся!</p>
            <div className="link-group">
                <Link to="/" className="page-link">Вернуться в ленту</Link>
                <Link to="/profile" className="page-link">Профиль</Link>
                <Link to="/search" className="page-link">Поиск</Link>
            </div>
        </div>
    );
}

function NotFound() {
    return (
        <div className="page-content">
            <h1 className="page-title">404 - Страница не найдена</h1>
            <p className="about-text">Извините, запрашиваемая страница не существует.</p>
            <div className="link-group">
                <Link to="/" className="page-link">Вернуться в ленту</Link>
                <Link to="/profile" className="page-link">Профиль</Link>
                <Link to="/search" className="page-link">Поиск</Link>
            </div>
        </div>
    );
}

function App() {
    return (
        <UsersProvider>
            <BrowserRouter>
                <nav className="nav">
                    <ul className="nav-list">
                        <li className="nav-item">
                            <NavLink to="/" className={({isActive}) => isActive ? "nav-link active" : "nav-link"}>
                                <span className="nav-icon home-icon"></span>
                                <span className="nav-text">Лента</span>
                            </NavLink>
                        </li>
                        <li className="nav-item">
                            <NavLink to="/profile"
                                     className={({isActive}) => isActive ? "nav-link active" : "nav-link"}>
                                <span className="nav-icon profile-icon"></span>
                                <span className="nav-text">Профиль</span>
                            </NavLink>
                        </li>
                        <li className="nav-item">
                            <NavLink to="/messages"
                                     className={({isActive}) => isActive ? "nav-link active" : "nav-link"}>
                                <span className="nav-icon messages-icon"></span>
                                <span className="nav-text">Сообщения</span>
                            </NavLink>
                        </li>
                        <li className="nav-item">
                            <NavLink to="/search" className={({isActive}) => isActive ? "nav-link active" : "nav-link"}>
                                <span className="nav-icon search-icon"></span>
                                <span className="nav-text">Поиск</span>
                            </NavLink>
                        </li>
                        <li className="nav-item">
                            <NavLink to="/about" className={({isActive}) => isActive ? "nav-link active" : "nav-link"}>
                                <span className="nav-icon about-icon"></span>
                                <span className="nav-text">О нас</span>
                            </NavLink>
                        </li>
                    </ul>
                </nav>
                <main className="content">
                    <Routes>
                        <Route path="/" element={<Home/>}/>
                        <Route path="/users/:id" element={<UserProfile/>}/>
                        {'параметры делают маршруты динамическими (например, /users/:id'}
                        <Route path="/profile" element={<Profile/>}>
                            <Route path="posts" element={<ProfilePosts/>}/>
                            <Route path="settings" element={<ProfileSettings/>}/>
                            <Route index element={<Navigate to="posts" replace/>}/>
                        </Route>
                        <Route path="/messages" element={<Messages/>}>
                            <Route path="inbox" element={<MessagesInbox/>}/>
                            <Route path="sent" element={<MessagesSent/>}/>
                            <Route index element={<Navigate to="inbox" replace/>}/>
                        </Route>
                        <Route path="/search" element={<Search/>}/>
                        <Route path="/about" element={<About/>}/>
                        <Route path="*" element={<NotFound/>}/>
                    </Routes>
                </main>
            </BrowserRouter>
        </UsersProvider>
    );
}

export default App;

==========================================================================================================================
  
App.css:

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: #fafafa;
    min-height: 100vh;
    color: #262626;
}

.nav {
    background: #ffffff;
    border-bottom: 1px solid #dbdbdb;
    padding: 0.75rem 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-list {
    list-style: none;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    max-width: 935px;
    margin: 0 auto;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #262626;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    background-color: rgba(0, 149, 246, 0.1);
    color: #0095f6;
}

.nav-icon {
    display: inline-block;
    width: 24px;
    height: 24px;
    background-size: cover;
    background-position: center;
}

.home-icon {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z"></path><polyline points="9 22 9 12 15 12 15 22"></polyline></svg>');
}

.profile-icon {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2"></path><circle cx="12" cy="7" r="4"></circle></svg>');
}

.messages-icon {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"></path></svg>');
}

.search-icon {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="11" cy="11" r="8"></circle><line x1="21" y1="21" x2="16.65" y2="16.65"></line></svg>');
}

.about-icon {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"></circle><path d="M12 16v.01"></path><path d="M12 8v4"></path></svg>');
}

.nav-text {
    display: inline;
}

.content {
    max-width: 935px;
    margin: 4rem auto 2rem;
    padding: 1rem;
    min-height: calc(100vh - 4rem);
}

.page-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 1.5rem;
    background: #ffffff;
    border-radius: 8px;
    border: 1px solid #dbdbdb;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 600;
    text-align: left;
    color: #262626;
}

.home-title {
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.profile-title {
    background: linear-gradient(45deg, #405de6, #5851db, #833ab4, #c13584, #e1306c, #fd1d1d);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.messages-title {
    background: linear-gradient(45deg, #ffdc80, #fcaf45, #f77737);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.search-title {
    background: linear-gradient(45deg, #833ab4, #fd1d1d, #fcb045);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.about-title {
    background: linear-gradient(45deg, #00ddeb, #26a0da, #0095f6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.post {
    padding: 10px;
    margin: 5px 0;
    cursor: pointer;
    background-color: #f9f9f9;
}

.post.active {
    background-color: #e0f7fa;
    border-left: 4px solid #007bff;
}

.post-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.post-author-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.post-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
    border: 2px solid #ffffff;
}

.post-author {
    font-weight: 600;
    color: #262626;
    text-decoration: none;
}

.post-author:hover {
    color: #0095f6;
}

.post-time {
    color: #8e8e8e;
    font-size: 0.8rem;
}

.post-content {
    font-size: 0.9rem;
    line-height: 1.4;
    margin-bottom: 0.75rem;
}

.post-actions {
    display: flex;
    gap: 0.5rem;
}

.action-button {
    padding: 0.5rem;
    background: none;
    border: none;
    font-size: 0.85rem;
    cursor: pointer;
    color: #262626;
    transition: color 0.2s ease;
}

.action-button:hover {
    color: #0095f6;
}

.like::before {
    content: '❤️';
    margin-right: 0.25rem;
}

.comment::before {
    content: '💬';
    margin-right: 0.25rem;
}

.profile-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.profile-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(45deg, #405de6, #5851db, #833ab4, #c13584, #e1306c, #fd1d1d);
    border: 2px solid #ffffff;
}

.profile-details {
    flex: 1;
}

.profile-username {
    font-weight: 600;
    font-size: 1.2rem;
}

.profile-edit {
    padding: 0.5rem 1rem;
    background: linear-gradient(45deg, #0095f6, #00ddeb);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: opacity 0.2s ease;
    margin-left: 10px;
}

.profile-edit:hover {
    opacity: 0.9;
}

.profile-stats {
    display: flex;
    gap: 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.message {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-bottom: 1px solid #dbdbdb;
}

.message-sender-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(45deg, #f77737, #fcaf45, #ffdc80);
    border: 2px solid #ffffff;
}

.message-sender {
    font-weight: 600;
    color: #262626;
    text-decoration: none;
}

.message-sender:hover {
    color: #0095f6;
}

.message-preview {
    color: #8e8e8e;
    font-size: 0.85rem;
}

.search-bar {
    margin-bottom: 1rem;
}

.search-bar input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #dbdbdb;
    border-radius: 12px;
    font-size: 0.9rem;
    background: #fafafa;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-bar input:focus {
    border-color: #0095f6;
    box-shadow: 0 0 0 3px rgba(0, 149, 246, 0.1);
}

.search-bar input::placeholder {
    color: #8e8e8e;
}

.search-results {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    animation: fadeInUp 0.4s ease-out;
}

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

.search-result {
    padding: 1rem;
    border: 1px solid #dbdbdb;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: #ffffff;
    transition: all 0.3s ease;
    animation: slideInLeft 0.5s ease-out;
    animation-fill-mode: both;
    transform: translateX(-20px);
    opacity: 0;
}

.search-result:nth-child(1) {
    animation-delay: 0.1s;
}

.search-result:nth-child(2) {
    animation-delay: 0.15s;
}

.search-result:nth-child(3) {
    animation-delay: 0.2s;
}

.search-result:nth-child(4) {
    animation-delay: 0.25s;
}

.search-result:nth-child(5) {
    animation-delay: 0.3s;
}

.search-result:nth-child(n+6) {
    animation-delay: 0.35s;
}

@keyframes slideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.search-result:hover {
    border-color: #0095f6;
    box-shadow: 0 4px 12px rgba(0, 149, 246, 0.15);
    transform: translateY(-2px);
}

.result-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.result-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(45deg, #833ab4, #fd1d1d, #fcb045);
    border: 2px solid #ffffff;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.result-item {
    font-weight: 600;
    font-size: 1rem;
    color: #262626;
    text-decoration: none;
    transition: color 0.2s ease;
}

.result-item:hover {
    color: #0095f6;
}

.result-bio {
    color: #8e8e8e;
    font-size: 0.9rem;
    margin-left: 60px;
    padding-top: 0.25rem;
}

.about-text {
    font-size: 0.9rem;
    line-height: 1.5;
    text-align: center;
    color: #262626;
}

.link-group {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
}

.page-link {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background: linear-gradient(45deg, #0095f6, #00ddeb);
    color: #ffffff;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 8px;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.page-link:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.search-loading {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    color: #8e8e8e;
    font-style: italic;
}

.search-loading::before {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid #dbdbdb;
    border-top: 2px solid #0095f6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.no-results {
    text-align: center;
    padding: 2rem;
    color: #8e8e8e;
    font-style: italic;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@media (max-width: 768px) {
    .nav-list {
        gap: 0.5rem;
        flex-wrap: wrap;
        padding: 0 0.5rem;
    }

    .nav-link {
        flex-direction: column;
        gap: 0.25rem;
        padding: 0.5rem;
    }

    .nav-text {
        font-size: 0.75rem;
    }

    .page-content {
        padding: 1rem;
    }

    .page-title {
        font-size: 1.25rem;
    }

    .profile-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .profile-avatar {
        width: 60px;
        height: 60px;
    }

    .link-group {
        flex-direction: column;
        align-items: center;
    }

    .search-result {
        padding: 0.75rem;
    }

    .result-avatar {
        width: 40px;
        height: 40px;
    }

    .result-bio {
        margin-left: 52px;
    }
}

@media (max-width: 480px) {
    .nav-icon {
        width: 20px;
        height: 20px;
    }

    .nav-text {
        display: none;
    }

    .post-avatar, .message-avatar {
        width: 28px;
        height: 28px;
    }

    .result-avatar {
        width: 36px;
        height: 36px;
    }

    .result-bio {
        margin-left: 48px;
    }

    .post-content, .about-text {
        font-size: 0.85rem;
    }
}