/* ---------------- Base Styles ---------------- */
body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f0f0;
    color: #333;
}

a {
    text-decoration: none;
    color: #301eb4;
}
a:hover {
    color: #3c30c2;
}

/* ---------------- Header ---------------- */
header {
    background-color: #301eb4;
    color: white;
    padding: 20px 0;
    text-align: center;
    font-size: 2rem;
    font-weight: bold;
}

/* ---------------- Navigation ---------------- */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: #f8f8f8;
}

/* Right-side links container */
.nav-right {
    display: flex;
    align-items: center;
    gap: 15px;
}
.nav-right > a {
    font-weight: bold;
}

/* ---------------- Dropdown Hamburger ---------------- */
.dropbtn {
    background-color: #301eb4;
    color: white;
    padding: 18px 28px;       /* touch-friendly padding */
    font-size: 26px;
    border: none;
    cursor: pointer;
    border-radius: 6px;
    width: 250px;              /* Default PC width */
    display: block;
    text-align: center;
    margin: 0 auto;            /* center on PC */
}

/* Dropdown container */
.dropdown {
    position: relative;
    width: 100%;
    max-width: 900px;          /* optional max width to align dropdown under button */
    margin: 0 auto;
}

/* Dropdown content */
.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;                /* center under button */
    transform: translateX(-50%);
    min-width: 250px;          /* same as button on PC */
    background-color: white;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    z-index: 100;
    border-radius: 6px;
    text-align: left;
}

.dropdown-content a, .dropdown-content span {
    color: #301eb4;
    padding: 18px 28px;
    font-size: 1.3rem;
    display: block;
}

.dropdown-content a:hover {
    background-color: #f0f0f0;
}

.show {
    display: block;
}

/* ---------------- Main Content ---------------- */
main {
    max-width: 900px;
    margin: 20px auto;
    padding: 20px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* ---------------- Forms ---------------- */
form input, form textarea, form button {
    display: block;
    width: 100%;
    max-width: 500px;
    margin: 10px 0;
    padding: 10px;
    font-size: 1rem;
    border-radius: 5px;
    border: 1px solid #ccc;
}
form button {
    background-color: #301eb4;
    color: white;
    border: none;
    cursor: pointer;
}
form button:hover { background-color: #4535c2; }

/* ---------------- Inline Remove Signup Button ---------------- */
.signup-remove-btn {
    display: inline-block;
    margin-left: 10px;
    padding: 2px 6px;
    font-size: 0.8rem;
    background-color: #f44336;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}
.signup-remove-btn:hover { background-color: #d32f2f; }
.signup-list li { margin-bottom: 5px; }

/* ---------------- Event Cards ---------------- */
.event-card {
    border: 1px solid #ccc;
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 8px;
    background-color: #f9f9f9;
    transition: background-color 0.2s ease;
}

/* ---------------- Chat Styles ---------------- */
#chat-box {
    background-color: #fafafa;
    border: 1px solid #301eb4;
    border-radius: 10px;
    padding: 15px;
    height: 400px;
    overflow-y: auto;
    font-size: 0.95rem;
    line-height: 1.4;
}
.chat-message { margin-bottom: 10px; padding: 5px 10px; border-radius: 8px; transition: background-color 0.2s ease; }
.chat-message b { color: #301eb4; }
.chat-message .chat-timestamp { color: #999; font-size: 0.75rem; margin-left: 5px; }
.chat-message:hover { background-color: #f0f0f0; }

#chat-form { display: flex; gap: 10px; margin-top: 10px; }
#chat-form input[type="text"] { flex: 1; padding: 10px; border-radius: 8px; border: 1px solid #ccc; font-size: 1rem; }
#chat-form button { padding: 10px 20px; background-color: #301eb4; color: white; border: none; border-radius: 8px; cursor: pointer; font-weight: bold; transition: background-color 0.2s ease; }
#chat-form button:hover { background-color: #4535c2; }

/* ---------------- Responsive ---------------- */
@media (max-width: 600px) {
    .dropbtn {
        width: 100%;          /* full width button */
        text-align: center;   /* center the ☰ icon */
        margin: 0;            /* no extra spacing */
        font-size: 26px;
        padding: 18px 0;      /* vertical padding, no horizontal padding needed */
    }

    .dropdown-content {
        left: 0;
        transform: none;
        min-width: 100%;      /* full width dropdown */
    }
}
/* ---------------- Chat Room Select Page ---------------- */
main.chat-room-select {
    text-align: center;       /* Center all text inside this main container */
    padding-top: 50px;        /* Optional spacing from top */
}

main.chat-room-select h1,
main.chat-room-select p {
    text-align: center;
    margin-bottom: 20px;
}

main.chat-room-select .room-btn {
    display: block;
    width: 250px;
    max-width: 80%;
    margin: 20px auto;
    padding: 20px;
    font-size: 1.5rem;
    border: none;
    border-radius: 8px;
    background-color: #301eb4;
    color: white;
    cursor: pointer;
    text-align: center;
    transition: background-color 0.2s ease;
}

main.chat-room-select .room-btn:hover {
    background-color: #4535c2;
}

/* ---------------- Chat Page (chat.php) ---------------- */
.chat-page {
    max-width: 900px;
    margin: 20px auto;
    padding: 20px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.chat-page h1 {
    text-align: center;
    color: #301eb4;
}

#online-users {
    margin-bottom: 15px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    background: #f0f0f0;
    font-size: 1rem;
    text-align: center;
}

#chat-box {
    border: 1px solid #ccc;
    height: 400px;
    overflow-y: auto;
    padding: 10px;
    background: #fafafa;
    border-radius: 8px;
    font-size: 1rem;
}

.chat-message {
    margin-bottom: 5px;
}
.chat-message b {
    color: #301eb4;
}
.chat-timestamp {
    color: #999;
    font-size: 0.8em;
    margin-left: 5px;
}

#chat-form {
    margin-top: 10px;
    display: flex;
    gap: 10px;
}
#chat-form input[type="text"] {
    flex: 1;
    padding: 10px;
    font-size: 1rem;
    border-radius: 8px;
    border: 1px solid #ccc;
}
#chat-form button {
    padding: 10px 20px;
    font-size: 1rem;
    background-color: #301eb4;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}
#chat-form button:hover {
    background-color: #4535c2;
}

.back-btn {
    display: inline-block;
    margin-bottom: 15px;
    padding: 8px 12px;
    border-radius: 5px;
    border: none;
    background: #301eb4;
    color: white;
    cursor: pointer;
    font-weight: bold;
}
.back-btn:hover {
    background: #4535c2;
}

/* ---------------- Mobile Responsive Chat ---------------- */
@media (max-width: 600px) {
    .chat-page {
        padding: 10px;
        margin: 10px;
    }

    #chat-box {
        height: 300px;            /* slightly smaller for mobile */
        font-size: 0.95rem;
    }

    #chat-form {
        flex-direction: column;   /* stack input & button vertically */
    }

    #chat-form input[type="text"] {
        width: 100%;
        font-size: 1rem;
    }

    #chat-form button {
        width: 100%;
        font-size: 1.1rem;
        padding: 12px;
    }

    .back-btn {
        width: 100%;
        text-align: center;
        padding: 12px;
        font-size: 1.1rem;
    }

    #online-users {
        font-size: 0.95rem;
    }
}