.hihi-tool-container {
    transition: all 0.3s ease;
}

.animate-fadeIn {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

textarea {
    line-height: 1.6;
}
.hihi-btn-primary {
    background-color: #2563eb !important;
    color: #ffffff !important;
    font-weight: 800 !important;
    padding: 1.25rem !important;
    border-radius: 1rem !important;
    width: 100% !important;
    border: none !important;
    cursor: pointer;
}

.hihi-btn-secondary {
    background-color: #111827 !important;
    color: #ffffff !important;
    font-weight: 800 !important;
    padding: 1.25rem !important;
    border-radius: 1rem !important;
    width: 100% !important;
    border: none !important;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.animate-fadeIn {
    animation: fadeIn 0.4s ease-out forwards;
}

/* Đảm bảo textarea hiển thị tốt */
#text-input, #text-output {
    font-family: inherit;
    font-size: 16px;
    line-height: 1.6;
}
/* Toolbar Buttons */
.tool-btn {
    background-color: #f1f5f9 !important;
    color: #475569 !important;
    font-weight: 700 !important;
    padding: 0.75rem 0.5rem !important;
    border-radius: 0.75rem !important;
    border: 1px solid #e2e8f0 !important;
    cursor: pointer;
    font-size: 13px !important;
    transition: all 0.2s ease;
}

.tool-btn:hover {
    background-color: #e2e8f0 !important;
    color: #1e293b !important;
}

.btn-slug {
    background-color: #eff6ff !important;
    color: #2563eb !important;
    border-color: #bfdbfe !important;
}

/* Main Buttons */
.hihi-btn-secondary {
    background-color: #111827 !important;
    color: #ffffff !important;
    font-weight: 800 !important;
    padding: 1.25rem !important;
    border-radius: 1rem !important;
    width: 100% !important;
    border: none !important;
    cursor: pointer;
    margin-top: 10px;
}

#text-input, #text-output {
    font-family: inherit;
    font-size: 16px;
    line-height: 1.6;
}

.animate-fadeIn {
    animation: fadeIn 0.4s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}