:root {
    --primary: #007bff;
    --primary-dark: #005be0;
    --bg: #eef3ff;
    --white: #fff;
    --red: #e74c3c;
}

body {
    background: var(--bg);
    font-family: 'Inter', sans-serif;
}

/* CONTAINER */
.xu-container {
    background: var(--white);
    width: 95%;
    max-width: 1300px;
    padding: 25px;
    border-radius: 16px;
    margin: 30px auto;
    box-shadow: 0 4px 14px rgba(0,0,0,0.12);
}

/* TITLE */
.xu-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 20px;
}

/* GRID */
.xu-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

/* BOX */
.xu-box {
    display: flex;
    flex-direction: column;
}

.xu-label {
    font-weight: 700;
    margin-bottom: 6px;
}

.xu-input {
    width: 100%;
    height: 260px;
    padding: 12px;
    border-radius: 14px;
    border: 1px solid #d2e1ff;
    font-size: 15px;
    resize: vertical;
    outline: none;
    background: white;
}

.xu-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 8px rgba(0,123,255,0.3);
}

.xu-info {
    margin-top: 5px;
    font-size: 13px;
    color: #333;
    font-weight: 600;
}

/* BUTTONS */
.xu-button-row {
    display: flex;
    gap: 20px;
    margin-top: 25px;
}

.xu-btn {
    flex: 1;
    padding: 14px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: 0.25s;
}

.xu-blue {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.xu-red {
    background: var(--red);
    color: white;
}

.xu-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 14px rgba(0,0,0,0.2);
}

/* LOADING */
.xu-loading {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-top: 20px;
    padding: 14px;
    border-radius: 12px;
    background: #f0f6ff;
    font-weight: 600;
    color: var(--primary-dark);
}

.hidden {
    display: none;
}

.loading-icon {
    width: 45px;
}