/* Stiluri generale */
body {
    margin: 0;
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Banda verde */
.green-banner {
    background-color: #4CAF50;
    color: white;
    padding: 25px 0;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.green-banner h1 {
    margin: 0;
    font-size: 2.2em;
    font-weight: normal;
}



/* Banda verde enunt teste antrenament*/
.green-banner-teste {
    background-color: #4CAF50;
    color: white;
    padding: 5px 0;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.green-banner-teste h1 {
    margin: 0;
    font-size: 1.7em;
    font-weight: normal;
}



/* Probleme și butoane */
.problem {
    background: #f9f9f9;
    border-left: 4px solid #4CAF50;
    padding: 20px;
    margin-bottom: 25px;
    border-radius: 0 5px 5px 0;
}

.btn {
    display: inline-block;
    padding: 8px 15px;
    background: #4CAF50;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    margin: 10px 10px 0 0;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #388E3C;
}

/* Buton înapoi */
.btn-back {
    display: inline-block;
    background: #f0f0f0;
    color: #333;
    padding: 10px 20px;
    margin: 40px 0;
    text-decoration: none;
    border-radius: 4px;
    border: 1px solid #ddd;
}







/* Stiluri specifice paginii de desen */
.problem-container {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.spacer {
    height: 4.5em; /* ~3 rânduri */
    margin: 20px 0;
}

.spacer-large {
    height: 15em; /* ~10 rânduri */
    margin: 20px 0;
}

.instruction-box {
    background: #FFF3CD;
    border-left: 4px solid #FFC107;
    padding: 15px;
    margin: 20px 0;
    border-radius: 4px;
}

.drawing-image {
    max-width: 100%;
    border: 1px solid #ddd;
    padding: 10px;
    margin-top: 20px;
}

.error {
    color: #dc3545;
    padding: 20px;
    text-align: center;
    border: 1px solid #dc3545;
    margin: 20px;
    border-radius: 4px;
}