body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background: #f4f6f8;
    color: #333;
}

/* Header */
header {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    background: #1e88e5;
    color: #fff;
    position: sticky;
    top: 0;
}
header .logo {
    height: 40px;
    margin-right: 20px;
}
header input {
    flex: 1;
    padding: 8px 12px;
    border-radius: 20px;
    border: none;
    outline: none;
}

/* Feed */
.feed-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding: 15px;
}

/* Post Card */
.post-card {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    padding: 15px;
}
.post-card img {
    max-width: 100%;
    border-radius: 10px;
}
.post-actions {
    display: flex;
    justify-content: space-around;
    padding-top: 10px;
    border-top: 1px solid #eee;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    width: 100%;
    background: #fff;
    display: flex;
    justify-content: space-around;
    border-top: 1px solid #ddd;
    padding: 8px 0;
}
.bottom-nav button {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: #1e88e5;
}
.bottom-nav button:hover {
    color: #1565c0;
}

/* Profile card */
.profile-card {
    display: flex;
    gap: 15px;
    background: #fff;
    padding: 10px;
    border-radius: 10px;
    align-items: center;
    box-shadow: 0 1px 5px rgba(0,0,0,0.05);
}
.profile-card img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

/* Events */
.event-card {
    background: #fff;
    padding: 12px;
    border-radius: 12px;
    box-shadow: 0 1px 6px rgba(0,0,0,0.08);
    margin-bottom: 10px;
}
.event-card h4 {
    margin: 0 0 5px 0;
}