.tip-layout {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(2, 1fr);
}

.tip-box {
    background-color: #f5f5dc;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(0, 128, 0, 0.1); 
}

.tip-box li {
    margin-bottom: 8px; 
}

.tip-box h3 {
    margin-top: 0;
    color: #004d40;
}

.tip-box.wide {
    grid-column: 1 / -1;
}

.action-btn {
    border: none;
    background-color: green;
    color: white;
    padding: 10px 12px;
    border-radius: 8px;
    cursor: pointer;
}

.action-btn:hover {
    background-color: #004d40;
}

.feedback {
    margin-top: 12px;
    padding: 10px;
    border-radius: 10px;
    background-color: #b1b17d85;
    border: 1px solid rgba(0, 0, 0, 0.1);
    display: none; 
}

#waterTipFeedback{
    display:block ; 
}
.feedback.good, .feedback.bad {
    display: block;
}

.feedback.good {
    border-color: rgba(0, 128, 0, 0.5);
}

.feedback.bad {
    border-color: rgba(176, 0, 32, 0.5);
}

.page-nav {
    max-width: 1000px;
    margin: 25px auto 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}

.nav-btn {
    text-decoration: none;
    background-color: #ffffff;
    padding: 10px 12px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    color: green;
    font-weight: bold;
}

.nav-btn:hover {
    transform: translateY(-2px);
}

.video {
    width: 100%;
    border-radius: 12px;
    margin-top: 10px;
}

.hint {
    display: block;
    margin-top: 6px;
    opacity: 0.8;
    font-size: 0.9em;
}

@media (max-width: 700px) {
    .header-row {
        flex-direction: column;
    }

    .login {
        position: static;
    }

    .tip-layout {
        grid-template-columns: 1fr;
    }
}