/*--------------------------------------------------------------
# Krutidev to Unicode Converter Styles
--------------------------------------------------------------*/
:root {
    --ktu-royal-blue: #2563EB; /* A vibrant, modern royal blue */
    --ktu-silver-light: #F3F4F6; /* A very light silver for backgrounds */
    --ktu-silver-dark: #D1D5DB; /* A darker silver for borders and accents */
    --ktu-text-dark: #1F2937;
    --ktu-text-light: #4B5563;
    --ktu-white: #FFFFFF;
}

.ktu-converter-container {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--ktu-white);
    border: 1px solid var(--ktu-silver-dark);
    border-radius: 16px;
    padding: 2rem;
    max-width: 900px;
    margin: 2rem auto;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.07);
}

.ktu-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
    color: var(--ktu-royal-blue);
}

.ktu-header .fa-language {
    font-size: 2rem;
}

.ktu-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0;
    color: var(--ktu-text-dark);
}

.ktu-main-content {
    display: flex;
    gap: 1.5rem;
    align-items: stretch;
}

.ktu-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.ktu-action-panel {
    display: flex;
    align-items: center;
    justify-content: center;
}

.ktu-panel label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--ktu-text-dark);
    margin-bottom: 0.75rem;
}

.ktu-panel textarea {
    width: 100%;
    flex-grow: 1;
    padding: 1rem;
    border: 1px solid var(--ktu-silver-dark);
    border-radius: 8px;
    font-size: 1.1rem; /* Large font for readability */
    line-height: 1.7;
    background-color: var(--ktu-silver-light);
    resize: vertical;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.ktu-panel textarea:focus {
    outline: none;
    border-color: var(--ktu-royal-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

#ktu-output {
    background-color: #E5E7EB; /* Slightly darker to indicate it's readonly */
    color: #374151;
}

#ktu-convert-btn {
    background-color: var(--ktu-royal-blue);
    color: var(--ktu-white);
    border: none;
    padding: 12px 20px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color 0.2s;
}

#ktu-convert-btn:hover {
    background-color: #1D4ED8; /* Darker blue on hover */
}

.ktu-copy-btn {
    margin-top: 1rem;
    background-color: var(--ktu-silver-dark);
    color: var(--ktu-text-dark);
    border: none;
    padding: 10px 15px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
}

.ktu-copy-btn:hover {
    background-color: #9CA3AF;
    color: var(--ktu-white);
}

/* Responsive Design */
@media (max-width: 768px) {
    .ktu-main-content {
        flex-direction: column;
    }
    .ktu-action-panel {
        margin: 0.5rem 0;
    }
    #ktu-convert-btn .fa-exchange-alt {
        transform: rotate(90deg);
    }
}